EP4490799A2 - Installation d'empilage de cellules destiné à empiler des segments de cellules d'énergie, procédé de commande d'une telle installation d'empilage de cellules, dispositif partiel d'une installation d'empilage de cellules ou situé dans une installation d'empilage de cellules et procédé partiel utilisé dans le cadre de la fabrication d'empilage de cellules dans une installation d'empilage de cellules - Google Patents

Installation d'empilage de cellules destiné à empiler des segments de cellules d'énergie, procédé de commande d'une telle installation d'empilage de cellules, dispositif partiel d'une installation d'empilage de cellules ou situé dans une installation d'empilage de cellules et procédé partiel utilisé dans le cadre de la fabrication d'empilage de cellules dans une installation d'empilage de cellules

Info

Publication number
EP4490799A2
EP4490799A2 EP23709707.6A EP23709707A EP4490799A2 EP 4490799 A2 EP4490799 A2 EP 4490799A2 EP 23709707 A EP23709707 A EP 23709707A EP 4490799 A2 EP4490799 A2 EP 4490799A2
Authority
EP
European Patent Office
Prior art keywords
segments
cell stacking
transfer
removal device
receptacle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23709707.6A
Other languages
German (de)
English (en)
Inventor
Jan Kreysern
Karsten Meinke
Dirk Zeuner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Koerber Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koerber Technologies GmbH filed Critical Koerber Technologies GmbH
Publication of EP4490799A2 publication Critical patent/EP4490799A2/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/241—Suction devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2404—Processes or apparatus for grouping fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/34—Suction grippers
    • B65H2406/345—Rotary suction grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • Cell stacking system for stacking segments of energy cells, method for controlling such a cell stacking system, partial device of or in a cell stacking system and partial method for producing cell stacks in a cell stacking system
  • the present invention relates to a cell stacking system with the features of the preamble of claim 1 or claim 16, a method for controlling such a cell stacking system with the features of the preamble of claim 23, a sub-device of or in a cell stacking system with the features of the preamble of claim 35 and a sub-process for producing cell stacks in a cell stacking system with the features of the preamble of claim 39.
  • Energy cells or energy storage devices in the sense of the invention are used, for example, in motor vehicles, other land vehicles, ships, aircraft or in stationary systems such as photovoltaic systems in the form of battery cells or fuel cells, in which very large amounts of energy have to be stored over long periods of time.
  • energy cells have a structure made up of a large number of segments stacked to form a stack. These segments are each alternating anode sheets and cathode sheets, which are separated from one another by separator sheets which are also manufactured as segments. The segments are pre-cut in the manufacturing process and then stacked in the predetermined order and connected to each other by lamination. The anode sheets and cathode sheets are first cut from an endless web and then placed individually at intervals on an endless web of separator material.
  • This subsequently formed “double-layer” endless web made of the separator material The placed anode sheets or cathode sheets are then cut into segments again in a second step using a cutting device, the segments in this case being formed in double layers by a separator sheet with an anode sheet or cathode sheet arranged thereon.
  • the endless webs of the separator material with the anode sheets and cathode sheets placed on them can also be placed on top of each other before cutting, so that an endless web with a first endless layer of the separator material with anode sheets or cathode sheets placed thereon and a second endless layer of the separator material is formed with anode sheets or cathode sheets placed thereon.
  • This “four-layer” endless web is then cut into segments using a cutting device, which in this case are formed in four layers with a first separator sheet, an anode sheet, a second separator sheet and a cathode sheet resting thereon.
  • the segments can also be formed from a first separator sheet, a cathode sheet, a second separator sheet and an anode sheet resting thereon.
  • the advantage of this solution is that one cut can be saved. Segments in the sense of this invention are therefore single-layer segments of a separator material, anode material or cathode material, double-layer, three-layer or four-layer segments of the structure described above.
  • Another known approach is a machine with continuously running material webs and clocked tools, such as cutting knives or tools for changing the pitch.
  • a condition for the high production output is a high production rate of the stacks of energy cells, which are formed from several segments of the type described above that are stacked on top of each other.
  • the segments are converted into the so-called mono cells consisting of a first separator sheet, a th anode sheet, a second separator sheet arranged thereon and a cathode sheet arranged thereon are placed on top of each other.
  • the separator sheets can initially be guided as two endless webs, with the already cut segments in the form of the anode sheets being placed on one of the endless webs and already cut segments in the form of the cathode sheets being placed on the other endless web and connected to one another by a lamination process.
  • the prefabricated composite sheets are then connected to one another in a further lamination process to form a four-layer composite sheet.
  • first cut electrode in the form of the cathode or anode between the separator sheets in the form of the endless webs and to place the second cut electrode in the form of the anode or cathode on or under one of the separator sheets.
  • the four-layer web is then laminated in a common lamination process, so that the monocell is produced in a solid formation while the endless webs are still in existence, i.e. before cutting.
  • the monocells are then cut from the composite sheet by cutting through the spaces between the successive anode sheets and/or cathode sheets.
  • the endless webs can also be cut from the separator material with the anode sheets and cathode sheets arranged thereon, the monocells then being produced by a downstream composite process of a first cut separator sheet with an anode with a second cut separator sheet with a cathode.
  • the segments are then stacked on top of each other to form a stack of a plurality of segments. If the segments are monocells or separator sheets with arranged on them Anode or cathode sheets, there is a cathode or anode on a free side surface of the stack, which is then covered by the arrangement of a so-called closure cell.
  • the termination cell includes a first separator sheet, an anode or cathode sheet arranged thereon and a second separator sheet arranged thereon, but no cathode or anode sheet is arranged thereon. The termination cell can therefore also be viewed as a monocell without a cathode or anode sheet.
  • the finished stack consisting of the large number of monocells and the end cell is then characterized in that it has a separator sheet on its top and bottom and thus the anode sheets and cathode sheets are covered by separator sheets on the top and bottom and are not in contact with each other.
  • the invention is based on the object of providing a cell stacking system, a method for controlling such a cell stacking system, a partial device and a partial method, which should enable the segments to be stacked at the highest possible production rate without this having a detrimental influence on the positioning accuracy of the resulting in segments stacked out from one another.
  • a cell stacking system with the features of claim 1 or 16 and a method for controlling a cell stacking system with the features of claim 23 are proposed.
  • a partial device according to claim 35 and a partial method according to claim 39 are proposed to solve the problem.
  • a cell stacking system for stacking segments of energy cells is used to solve the problem
  • the cell stacking device has at least one removal device and a storage element, proposed in which
  • the removal device is driven to a repeating alternating movement of acceleration and deceleration
  • the removal device takes over the segments at the feed speed from the feed device and transfers them to the storage element in a delayed movement or at a standstill.
  • the advantage of the proposed solution is that the segments are taken over by the removal device at the feed speed of the feed device and are then transferred to the storage element by delaying the movement of the removal device at a lower speed or even at a standstill.
  • an uninterrupted removal of the segments at a high transport speed from the feed device with a possible could be achieved with the lowest possible burden on the segments during the takeover.
  • a transfer of the segments to the storage element can be achieved with lower transverse forces acting on the segments.
  • the transverse forces reduced when the segments are delivered to the storage member are of particular importance, since the segments can thereby be stacked in the storage member in a more precise position to form the stacks. In this way, abrasive relative movements in particular between a segment that has already been deposited and the segment currently in the depositing movement can be minimized.
  • the removal device is formed by a rotatably driven rotating body, and the repeating alternating movement from the acceleration and deceleration is formed by an accelerated and decelerated rotational movement of the rotating body.
  • the realization of the removal device as a rotatably driven rotating body has the advantage of a very high transfer speed of the segments from the removal device in a continuous feeding movement.
  • the use of the rotatably driven rotating body has the advantage of a very compact design of the cell stacking system.
  • a drum barrel in the form of several drums connected in series can be used as the feed device, which enables the segments to be fed at a very high feed rate.
  • the rotating body has at least one, preferably two, three or more than three transfer stamps arranged at identical angles to one another for receiving the Has segments, and the rotating body is decelerated and accelerated during a revolution according to the number of transfer stamps. Due to the plurality of transfer stamps, the transfer rate of the segments by the rotating body can be increased and/or, conversely, the required rotational speed of the rotating body can be reduced for a predetermined number of segments to be transferred per unit of time.
  • the number of takeover stamps is odd.
  • the transfer station of the segments from the feed device and the transfer station to the storage member can be arranged opposite each other at an angle of 180 degrees in relation to the axis of rotation of the drum, and there is no other transfer stamp in the transfer station if there is a transfer stamp in the transfer station , is arranged.
  • the proposed further development allows the transfer station and the transfer station to be arranged opposite each other, which enables a structurally simple construction of the cell stacking system without two transfer stamps passing through the transfer station and the transfer station at the same time.
  • the transfer stamps each have a transfer surface that is in the shape of a circular arc section in the cross section of the rotating body, and that the transfer surfaces of the transfer stamps are arranged on the same diameter in cross section.
  • the transfer surfaces of the transfer stamps thus form a transfer radius and thus pass through the transfer station and transfer station on an identical diameter in relation to the body of revolution.
  • the storage element has a linearly movable receptacle which transports the stacks away from the removal device in the direction of the surface normal of the segments. Thanks to the holder, which can be moved linearly in the proposed direction, the stacks and/or the segments stacked therein are transported away without any transverse forces acting on them. This prevents the segments and/or stacks from losing their precise positioning during transport.
  • the storage element has a lifting device, which moves the receptacle via a linear guide device when activated.
  • the receptacle and the stack held therein are transported away in a predetermined travel path by the linear guide device and the associated lifting device.
  • the receptacle can thus be fed back into the transfer station of the removal device in a movement that can be controlled very precisely after the stack has been delivered.
  • At least one sensor device is provided in the area of the lifting device, which detects a property of the stack or the receptacle.
  • the travel path of the receptacle achieved by the lifting device can thereby also be used to arrange a sensor device.
  • the guide device defines the travel path of the receptacle and enables the sensor device to be precisely aligned with the receptacle moving past it with the stack held therein.
  • the sensor device can, for example, determine the position of the recording or the passing a predetermined position can be detected by the recording.
  • properties of the stack such as the stack height, the side surfaces of the stack or the arrangement and orientation of the stack can also be detected so that these can be documented or defective stacks can be rejected before further processing.
  • the storage element has a converter that can be moved from a standby position to a holding position.
  • the converter is arranged in the holding position during the pick-up process for transporting away the stacks and forms an intermediate support for depositing the segments.
  • the intended converter makes it possible to deposit the segments even if the receptacle filled with the previously assembled stack is moved to a delivery location for transfer of the stack from the removal device and is therefore not available for taking over the segments in the transfer position of the removal device . This enables an uninterrupted, i.e. continuous delivery of the segments from the removal device to the storage element with a high stacking rate thereby made possible.
  • the converter is moved from the holding position back to the ready position as soon as the receptacle has been moved back into the transfer station of the removal device. This means that the stacking process and in particular the movement of the receptacle from the transfer station is not disturbed or restricted by the converter.
  • the converter is then moved from the standby position to the holding position when a predetermined number of segments are stacked in the receptacle and/or when a predetermined stack height is reached, namely immediately after the last segment has been placed on the stack.
  • the converter is moved into the storage path of the segments, so that the storage of the next segment on the stack is interrupted and the next segment is placed on the converter instead.
  • the converter practically takes over the function of the recording for a short time by forming a clipboard until the recording is moved back to the transfer station.
  • the receptacle and the converter each have a support surface, which are formed by the surfaces of profiles made of webs and spaces arranged between them, the converter and the receptacle during their movements to transfer the stack of segments with their webs in the gaps between the other part intervene. Due to the proposed design of the support surfaces, the receptacle can be moved back into the transfer station after the stack has been delivered without colliding with the converter. When moving into the transfer station, the receptacle is moved with the webs of its support surface between the webs of the support surface of the converter and thus supplements the support surface of the converter to form an enlarged receiving surface.
  • the converter After the receptacle is arranged again in the transfer station, the converter is moved from the holding position back to the standby position and thereby transfers the already stacked segments to the receptacle.
  • the stack is practically “translated” and transferred from the clipboard on the converter to the recording.
  • the webs can be aligned equidistant and parallel to one another. Furthermore, the webs can also have different distances and/or a different orientation, provided that the transfer and acceptance of the segments and in particular the engagement movement requires this.
  • a removal device is provided with a large number of individually movable transport receptacles into which the storage member places the stacks.
  • the individually movable transport holders are used to transport the stacks away for further processing. Since the segments and the stacks are checked for compliance with predetermined quality criteria during the previous transport and/or stacking process using one or more sensor devices and are removed from the production process if the quality criteria are not met, the stacking processes and the frequency of the stacks to be transported away can vary. This change in the transport frequency of the stacks to be removed can be taken into account by the individual movability of the transport holders in conjunction with a corresponding control.
  • the removal device and/or the receptacle of the storage member have one or more vacuum lines that can be subjected to negative pressure, which, by applying negative pressure, enable the removal of the segments by the removal device from the feed device and/or by the storage member from the removal device as well as the transport support on the removal device. Thanks to the vacuum lines that can be subjected to negative pressure, the transfer of the segments and the transport of the segments on the removal device can be achieved with very low forces acting on the segments. Furthermore, the forces exerted on the segments can be controlled very easily by switching the negative pressure on and off in the vacuum lines.
  • the removal device can take over the segments from the feed device can be controlled very simply by switching on the negative pressure in the vacuum lines of the removal device and switching off the negative pressure in the vacuum lines of the feed device to a transfer point.
  • the transfer of the segments from the removal device to the storage element is then carried out analogously by switching off the negative pressure in the vacuum lines of the removal device and switching on the negative pressure in the vacuum lines of the storage member's receptacle.
  • a holding vacuum is applied to one or each vacuum line of the removal device that opens into a support zone, which is switched off with a delay when or during the transfer of the segment to the storage element and a segment to be transferred is withdrawn against the holding vacuum that is still at least partially applied, which is a ensures fixed, precise positioning of the segment to be transferred and helps prevent position changes caused by any floating or falling movements.
  • a cell stacking system with the features of the preamble of claim 16 is proposed, wherein at least one cell stacking device is arranged in the cell stacking device, which stacks the segments on top of one another to form stacks, the cell stacking device having at least one removal device and a storage element arranged at a transfer station, and the removal device has a rotating body that can be driven to rotate and has at least two support zones arranged at a distance from one another in the circumferential direction (and fixed in the circumferential direction) and extending in a length Y in the circumferential direction for taking over the segments at a transfer station.
  • the proposed solution enables the segments to be stacked at a very high unit rate by the removal device taking over the segments in a continuous rotational movement over the carrying zones in the transfer station by being designed as a rotating body with the support zones and the free zones.
  • the length Y of one or each supporting zone extending in the circumferential direction is greater than or equal to 20 mm, 50 mm, 60 mm, 90 mm or 100 mm.
  • the length Y of one or each supporting zone extending in the circumferential direction is less than or equal to 200 mm, 180 mm, 150 mm, 120 mm, 100 mm, 80 mm or 60 mm.
  • the extent of one or each support zone transverse to the length Y is greater than or equal to 40 mm, 50 mm, 60 mm, 80 mm, 90 mm, 100 mm, 150 mm, 180 mm or 300 mm.
  • the extent of one or each support zone transverse to the length Y is less than or equal to 400 mm, 350 mm, 300 mm, 250 mm, 200 mm, 150 mm, 130 mm, 120 mm, 110 mm, 100 mm, 90 mm, 80 mm , 50mm or 40mm.
  • Free zones extending in a length Z in the circumferential direction are preferably provided between the carrying zones, the carrying zones and the free zones being arranged in such a way that the removal device in a takeover phase at the takeover station during which a segment is taken over by a carrying zone, the storage element with a free zone happened.
  • the free zones are deliberately not designed to take over segments and allow the transfer station to be passed through while a segment is being taken over in the transfer station without a segment being delivered to the transfer station.
  • the advantage of the proposed solution is that the proposed design of the cell stacking device enables improved takeover and transfer of the segments and thus improved stacking of the segments. Since the takeover and transfer of the segments does not take place at the same time in a single position of the removal device due to the proposed support zones, free zones and their arrangement, the removal device can be used to optimize an improved takeover of the segments from the feed and an optimized delivery and stacking of the segments in their Movement behavior when taking over and handing over the segments can be optimized by individually designing their movement behavior in the positions when they pass the transfer station and the transfer station with the support zones.
  • the length Y of one or each support zone is smaller, equal to or greater than the length Z of one or each free zone. If the length Y of the carrying zone is smaller, this is advantageous for the transfer of the segments, since in this case the larger length of the free zone means that a larger angle of rotation is available for adapting the movement behavior of the removal device until the segment is taken over and transferred. If the length Y of the support zones is equal to the length Z of one or each free zone, the advantage of a change in the movement behavior that is as uniform as possible can be achieved, in particular with identical accelerations and decelerations of the removal device. If the length Y of the support zones is greater than the length Z of the free zones, this is advantageous with regard to the capacity of the removal device, since the lateral surface of the rotating body can be designed to accept and transfer a larger number of segments can.
  • the lengths Z of the free zones between the supporting zones are the same or different. If the length Z of the free zones is the same, repeating movements of the rotating body that are as similar as possible can be achieved between the takeover and the transfer of a segment and vice versa. If the length Z of the free zones are different, individually different movement processes can be implemented, whereby, for example, deviations in the feed movements or the removal movements of the segments can be taken into account.
  • one or each support zone has a take-over surface. Through the transfer surface, the segments can be held flat on the support zones and transported by the rotating body from the transfer station to the transfer station. In this way, a particularly gentle transport of the segments can be achieved with the lowest possible local area-related maximum forces acting on the segments.
  • one or each free zone is formed by a radially inwardly extending recess on the rotating body.
  • the proposed design of the free zones creates free spaces on the rotating body, which enable a collision-free overlapping relative movement, for example of the storage member or on the feed device to the rotating body.
  • the mass of the rotating body to be moved can be reduced, which in turn simplifies the movement control and reduces the energy to be used Drive of the rotating body can be reduced.
  • one or each free zone has a radially inwardly offset boundary to one or each support zone.
  • the radially inwardly offset boundary creates a clearly defined spatial separation of the free zone from the support zone, which, for example, enables simplified detection of the rotational movement of the rotating body.
  • the cell stacking device has at least one removal device and a storage element, proposed in which
  • the removal device has a controllable drive device, which is controlled in such a way that the removal device is accelerated to take over the segments from the feed device and is delayed to transfer the segments to the storage member.
  • the advantage of the proposed method can be seen in the fact that the segments are taken over by the removal device at the feed speed of the feed device in a continuous feed and are then delivered to the storage element for storage by delaying the movement of the removal device at a lower speed or even at a standstill. pelification of the segments.
  • an uninterrupted removal of the segments at a high transport speed from the feed device can be achieved with the lowest possible load on the segments during takeover.
  • a transfer of the segments to the storage element can be achieved with lower transverse forces acting on the segments.
  • the cell stacking system forms an interface between the continuous feeding of the segments via the feeding device and the stacking of the segments, which takes place with a lower or ideally without a transverse speed of the segments, i.e. without a further transport speed.
  • the removal device is formed by a drum driven by the drive device to rotate, and the drive device controls the rotation of the drum in such a way that the drum takes over the segments from the feed device in a rotational movement and at a standstill or in a delayed rotational movement handed over to the filing organ.
  • the removal device as a rotatably driven drum, the deceleration and acceleration of the removal device can be realized very easily by decelerating and accelerating the rotational movement of the drum, which can be achieved, for example, by means of a controlled drive an electric motor can be done.
  • the removal device can be designed specifically to take over the segments from a feed device formed by a drum barrel.
  • the removal device and/or the storage lever each have vacuum lines which hold the segments by applying negative pressure to the removal device and/or to the storage lever, and the negative pressure in the vacuum lines of the removal device and in the vacuum lines of the storage lever for transfer the segments are controlled overlapping. Due to the overlapping application of the negative pressure in the vacuum lines of the removal device and the storage lever, the segments are subjected to a suction force without interruption during the transfer by the application of negative pressure, so that they cannot carry out any uncontrolled movements. The segments are held on the removal device via the negative pressure in the vacuum lines until the storage lever with its vacuum lines with negative pressure also rests on the segments with negative pressure and takes over the segments.
  • the negative pressure in the vacuum lines of the removal device is practically only switched off when the segments have been actively taken over by the storage lever due to the negative pressure in the vacuum lines of the storage lever.
  • the vacuum in the vacuum lines of the removal device is preferably applied for such a long time that the storage lever pulls the segments away from the removal device against a holding force that is still present.
  • the transfer of the segments does not take place in any phase without controlled forces being exerted on the segment.
  • the movement of the segment is therefore controlled in every phase of movement by the movement of the removal device
  • the storage lever is controlled by the applied vacuum and the segment cannot carry out any uncontrolled movements.
  • the storage element has a linearly movable receptacle, and the linearly movable receptacle is moved from a receiving position to a delivery position when the reaching of a predetermined stack height of the stack in the receptacle is detected via a sensor device.
  • the holder is used to transport the fully formed stack from the receiving position to the delivery position and is moved linearly to achieve the lowest possible forces acting on the segments.
  • a converter is provided, which is moved from a standby position into a holding position by means of a controllable drive device to accommodate the segments.
  • the converter creates a second storage area for the segments, which is used as a clipboard in the holding position, while the receptacle is not arranged in the receiving position and/or the transfer station of the removal device.
  • the converter is preferably moved from the standby position to the holding position between the transfer of two segments. Due to the proposed movement of the converter, the converter forms a storage area for the subsequent segments, and the receptacle can be moved from the receiving position into the delivery position, in which the stack arranged in the receptacle is transferred to the removal device.
  • the proposed solution provides practically an uninterrupted storage area for the segments, so that the stacking process can also be carried out can be continued during the movement of the recording.
  • the converter be moved from the holding position to the standby position after the movable receptacle has been moved from the delivery position to the receiving position.
  • the movement of the converter and the receptacle also overlap in this phase, so that the converter is only moved back to the ready position when the receptacle is in the receiving position and can receive the subsequent segments
  • the movement of the converter is controlled depending on the movement and/or the position of the receptacle. This can prevent a collision between the converter and the recording during their movements. Furthermore, the overlapping movement can be controlled particularly easily by only activating the movement of the converter into the ready position or the movement of the receptacle into the delivery position when the respective other part has completed the previous movement process.
  • the movements of the receptacle and the converter are preferably controlled relative to one another in such a way that at least the receptacle or the converter are always arranged in the receiving position and form a storage area for the segments to be deposited. This allows uninterrupted storage of the segments to be achieved.
  • the receptacle and the converter each have a support surface which extends through the surfaces is formed by a plurality of webs arranged parallel and equidistant from one another, and the converter and the receptacle engage with one another with their webs during their movements for transferring the stacks of segments. Due to the proposed further development, the receptacle can be moved very easily into the receiving position while the converter is still in the holding position by inserting the receptacle with its webs between the webs of the converter without colliding with it.
  • the storage member has a storage lever which removes the segments from the removal device and feeds them to the storage member.
  • the storage lever takes over the segments from the removal device and actively guides them into the receptacle of the storage member, so that the transfer of the segments from the removal device into the receptacle is appropriately controlled and guided, with the forces acting on the segments during the transfer also being controlled and carried out a corresponding course of the removal movement can be minimized. Furthermore, the transfer of the segments can be made more reliable.
  • the storage lever is driven by a drive device for a periodic removal movement from the removal device. Due to the periodic removal movement, the segments can be removed one after the other in an identical removal movement.
  • the periodic removal movement is preferably a linear lifting movement with the lowest possible transverse forces acting on the segments.
  • the feed device is designed and set up to feed segments of energy cells in a number A per unit of time
  • a first conveyor unit is provided for segments, which is arranged downstream of the feed device,
  • a second conveyor unit is provided for segments, which is arranged downstream of the first conveyor unit, whereby
  • the first conveyor unit is designed and set up to take over the number A per unit of time of segments from the feed device and to transport a number B per unit of time of segments to a first delivery area and a number C per unit of time of segments to a second delivery area, whereby
  • the number B per unit of time of the segments can be transported in the direction of the second conveyor unit and can be transferred to the second conveyor unit in the delivery area, and
  • the number C per unit of time of the segments in the second delivery area is intended to be transferable, in particular to a cell stacking device, or to a cell stacking device, or to one or more removal devices of a cell stacking device, and
  • the sum of the number B per unit time of segments and the number C per unit time of segments is less than or equal to the number A per unit time of segments, proposed.
  • the feed device which is designed and set up is to supply segments of energy cells in a number A per unit time, a number A per unit time of segments is supplied,
  • a first conveyor unit for segments which is arranged downstream of the feed device, conveys segments
  • a second conveying unit for segments which is arranged downstream of the first conveying unit, conveys segments, whereby
  • the first conveyor unit takes over the number A per unit time of segments from the feed device and transports a number B per unit time of segments to a first delivery area and a number C per unit time of segments to a second delivery area G2,
  • the number C per unit of time of the segments in the second delivery area in particular to a cell stacking device, or to a cell stacking device, or to one or more removal devices of a cell stacking device, and in particular
  • Both the partial device and the partial method include two conveying units and a division of the supplied segments into two partial streams. If the capacity of the system is to be increased or the number of segments transported further in the partial flows is to be reduced, additional conveyor units can be arranged in parallel or in series with the first two conveying units according to the same principle Funding units are provided.
  • the second conveyor unit is operated as a rotatably drivable conveyor unit, in particular in the form of a transfer drum or as an operatively connected combination of a first rotatably drivable conveyor unit, in particular in the form of a reversing drum and a second rotatably drivable conveyor unit, in particular in the form of a transfer drum.
  • the advantage of the proposed partial device and the proposed partial method can be seen in the fact that the cell stacking devices and/or removal devices are each stacked at a lower stacking rate than these due to the division of the supplied segments of the number A between the two conveying units corresponding to the smaller number B and C be supplied in the number A.
  • This means that the conveying rate of the feed device can be designed to be correspondingly high, and the stacking rate can at the same time be designed to be correspondingly low for a high positional accuracy of the stacked segments and thus the stack itself.
  • the second conveyor unit is preferably designed as a rotatably drivable conveyor unit, in particular in the form of a transfer drum or as an operatively connected combination of a first rotatably drivable conveyor unit, in particular in the form of a reversing drum and a second rotatably drivable conveyor unit, in particular in the form of a transfer drum, which in themselves are very high Enable funding capacities of the segments.
  • the design of the first conveyor unit as a rotatable conveyor unit enables a continuous supply and removal of the segments to and away from the conveyor unit. Due to the rotational movement of the conveyor unit, the forces acting on the segments, particularly in the transverse direction, can be reduced to the lowest possible level, which in turn enables very precisely positioned transport of the segments and thus also the formation of very precisely positioned stacks.
  • Fig. 1 a manufacturing machine with an inventive
  • Fig. 2 an enlarged view of the cell stacking system with a cell stacking device and several cell stacking devices in a perspective view;
  • Fig. 3 an enlarged view of the cell stacking system
  • FIG. 4 shows two representations of a cell stacking device, each with a removal device arranged in a transfer position and a removal device in a transfer position, in a perspective view;
  • FIG. 5 shows a removal device in the takeover position with a converter in a holding position in a sectional view
  • 6 shows a removal device in the take-over position with a converter in a holding position in a perspective view
  • FIG. 8 shows a removal device in the transfer position with a converter in a standby position in a perspective view
  • the manufacturing machine includes a feed of four endless webs (E1-E4), two of the endless webs E1 and E3 being formed from a separator material, one endless web E2 from an anode material and one endless web E4 from a cathode material.
  • the endless webs E2 and E4 of the cathode material and the anode material are each cut using a cutting device to form anodes and cathodes of a predetermined length and/or width, which are then placed on one of the endless webs E1 and E3 of the separator material after cutting.
  • the merging is carried out by first placing the anodes or cathodes cut off from the lowest endless web E4 individually onto a conveyor belt T, then placing the overlying endless web E3 of the separator material, and then in turn placing the anodes or cathodes cut off from the endless web E2.
  • cut anodes or cathodes are placed individually on the endless web E3 of the separator material, which are then covered by placing the top endless web E1 of the separator material on the top to form a four-layer endless web EG.
  • This four-layer endless web EG with the anodes or cathodes on one top side is then fed to a lamination unit L, in which they are connected to one another to form a solid bond by thermal and/or mechanical energy. If the four-layer endless web EG is to have a different structure, the endless webs E1 to E4 can also be arranged differently.
  • the laminated four-layer endless web EG is then fed to the cell stacking system 1 in the manufacturing machine and cut into segments 16 of a predetermined length and/or width in the cutting device 4, which are also referred to as monocells.
  • the cell stacking system 1 in the manufacturing machine with double-layered segments 16 consisting of only one layer of a separator material and an anode or cathode and/or also single-layered segments 16, provided that these are to be further processed in an appropriately stacked manner.
  • the cutting device 4 is formed here by a pair of drums consisting of a cutting drum with cutting knives and a counter-drum with counter-knives and cuts the four-layer endless web EG guided onto the cutting drum or the counter-drum by shearing off the cutting knives on the counter-knives into segments 16 of a predetermined length, which are through the Distances between the cutting knives or the counter-knives are defined, depending on whether the endless web is guided on the cutting drum or the counter-drum.
  • the feed device 2 is formed by a drum run with several transport drums on which the segments 16 are held, for example by suction. If the endless web supplied is a four-layer endless web EG, the segments 16 cut from it then correspond to the monocells described above.
  • the cell stacking system 1 with the cell stacking device 7 is shown enlarged in FIG.
  • the feed device 2 comprises four transfer drums 5 and three reversing drums 6 arranged between two transfer drums 5, only two of which can be seen in the detail of FIG.
  • the cell stacking device 7 comprises four cell stacking devices 11, each with a removal device 111 and an associated storage member 112, only two of which can be seen in the detail of FIG.
  • the removal device 111 is designed as a rotating body driven to rotate, for example in the form of a drum, and has three support zones in the form of transfer stamps 113 aligned at angles of 120 degrees to one another.
  • the transfer stamps 113 have an outer surface whose external dimensions at least correspond to the outer shape of the segments 16 or can also be larger than this.
  • the transfer stamps 113 In their cross section perpendicular to the axis of rotation of the removal device 111, the transfer stamps 113 have a contour in the shape of a circular arc section, each with the same radii, so that they complement each other to form a virtual circle. Furthermore, the removal devices 111 with their transfer stamps 113 are arranged and their radii are dimensioned so that during the rotational movement with the outer surfaces of the transfer stamps 113 they cover the lateral surfaces of the transfer drum 5 with at least the thickness of the segments 16 corresponding gap. The rotational movement of the removal device 111 to the respective transfer drum 5 is controlled in such a way that the transfer stamps 113 each take over exactly one segment 16 from the transfer drum 5 during rotation.
  • the movement of the removal device 111 is controlled so that the lateral surfaces of the transfer stamps 113 at the point of the shortest distance to the transfer drum 5, which corresponds to the transfer station XA, have a circumferential speed corresponding to the peripheral speed of the segments 16 held on the transfer drum 5, and the Segments 16 are ideally taken over by the transfer stamps 113 without a relative speed in the circumferential direction.
  • the lateral surfaces of the transfer stamps 113 have at least one circular arc length in the circumferential direction, which corresponds to the width of the segments 16 directed in the circumferential direction of the transfer drum 5, so that the segments 16 are taken over over their entire surface by the transfer stamps 113. Furthermore, the transfer stamps 113 also have a length in the axial direction of the removal device 111, which corresponds at least to the length of the segments 16 in the axial direction of the removal drum 5.
  • the transfer stamps 113 have a comb-like structure with a plurality of webs parallel to one another and directed in the circumferential direction, between which columns with a constant and identical width are arranged. The end faces of the webs then together form the lateral surfaces of the transfer stamp 113.
  • the transfer stamps 113 each form a transfer surface 123 on their outer sides, which are separated from one another by free zones 124 due to the plurality of transfer stamps 113.
  • Vacuum lines 122 are provided in the webs of the transfer stamps 113, which can be subjected to negative pressure and which open with their openings into the front lateral surfaces of the webs and/or transfer stamps 113 and can be seen in FIGS. 6 and 4. Furthermore, corresponding openings of vacuum lines that can be subjected to negative pressure can also be provided in the lateral surfaces of the transfer drums 5. The segments 16 are then held on the lateral surfaces of the transfer drums 5 by applying negative pressure in the vacuum lines and by switching off the negative pressure in the vacuum lines of the transfer drum 5 and by switching on the negative pressure in the vacuum lines 122 of the transfer stamp 113 passing through the transfer station XA from the removal device 111 adopted, as can be seen in the left illustration of Figure 4.
  • the orbital movement of the removal devices 111 and thus the transfer stamp 113 is controlled in such a way that they take over the segments 16 from the transfer drums 5 in a predetermined sequence.
  • four cell stacking devices 11 are provided in the cell stacking device 7, so that each of the cell stacking devices 11 takes over segments 16 from the feed device 2 in a fixed sequence in a rhythm of four.
  • the first removal device 111 of the first cell stacking device 11, which is assigned to the first transfer drum 5 takes over the first segments 13 of a number of cells during a rotation with one of its transfer stamps 113 in a rhythm. rer group from the first transfer drum 5.
  • the segments 16 of the group of four remaining on the first transfer drum 5 are then taken over by the first reversing drum 6 and then transferred to the second transfer drum 5. Due to the transfer of the segments 16 via the reversing drum 6 to the second transfer drum 5, the segments 16 are rotated once about their longitudinal axes, which are parallel to the axes of rotation of the transfer drum 5 and the reversing drum 6, so that they lie on the second transfer drum 5 with the same top side are directed outside as on the first transfer drum 5.
  • the second cell stacking device 11 then removes the second segments 16 of the group of four from the second transfer drum 5 in the same way with the transfer stamps 113 of the second removal device 111, as can be seen in Figure 2.
  • the fourth cell stacking device 11 removes the last segments 16 of the group of four from the fourth transfer drum 5 and all segments 16 of the group of four have been taken over by the cell stacking devices 11. Since each of the removal devices 111 has three transfer stamps 113, the segments 16 are removed from the feed by the transfer stamps 113 in three groups of four until all segments 16 have been removed after the transfer by the last transfer drum 5.
  • a cell stacking device 11 according to the invention with a storage member 112 according to the invention can be seen in an enlarged view in two different positions.
  • the removal device 111 is arranged between the transfer drum 5 and the storage member 112 and takes over the segments 16 from the transfer drum 5 according to the process described above.
  • the removal device 111 is rotated clockwise. driven in a clockwise direction, as can be seen from the direction of the arrow in Figures 3 and 4. While one of the segments 16 is being taken over, the removal device 111 is in the "12 o'clock position" with one of its take-over stamps 113 and passes through the take-over station XA with it, as can be seen in the left-hand illustration in FIG.
  • This position of the removal device 111 with a takeover stamp 113 arranged in the “12 o'clock position” is also referred to as the takeover position of the removal device 111 in the sense of the invention.
  • the takeover stamp 113 which has taken over the segment 16 of the previous group of four of the removal drum 5, is in this position in the "4 o'clock position”.
  • the removal device 111 rotates at a circumferential speed of the lateral surfaces of the takeover stamps 113, which corresponds to the circumferential speed of the segments 16 on the transfer drum 5 and takes over just one segment 16 with the takeover stamp 113 arranged in the “12 o'clock position”.
  • Another Acceptance stamp 113 is in the "8 o'clock position", which does not carry a segment 16 and therefore has a free lateral surface, since it has just delivered a segment 16 to the storage element 112.
  • the removal device 111 is in a position in which it passes the storage member 112 with a free zone 124 in the form of a free space, so that in this takeover position a collision of the removal device 111 with the storage member 112 and/or the storage member 112 with its is excluded Share movements to the removal device 111 can carry out.
  • the removal device 111 To transfer the segment 16 from the transfer stamp 113, which is in the "4 o'clock position" in the transfer position of the removal device 111, the removal device 111 is used during The further rotational movement is delayed until the removal device 111 with the transfer stamp 113 previously arranged in the "4 o'clock position” is arranged in the "6 o'clock position” and passes through the transfer station XB, as in the right-hand illustration of Figure 4 is recognizable.
  • the transfer station Transfer station XA can be arranged in the “12 o’clock position” without two of the transfer stamps 113 passing through the transfer station XA and the transfer station XB at the same time.
  • the position of the removal device 111 with the transfer stamp 113 arranged in the “6 o'clock position” is also referred to as the transfer position of the removal device 111 in the sense of the invention.
  • the removal device 111 was decelerated during this rotational movement to such an extent that the removal device 111 rotates at a much lower peripheral speed in the transfer position or even stands still for a very short moment.
  • the segment 16 is delivered from the transfer stamp 113 arranged in the "6 o'clock position" to the storage element 112, which will be explained in more detail below. Since the transfer stamp 113 rotates in this position at a much lower peripheral speed or, ideally, even stands still, the segment 16 is transferred with much lower transverse forces than would be possible without a delay in the removal device 111.
  • the segment 16 is even without any Transverse forces are transferred to the storage member 112 solely in a movement in the direction of the surface normal of the segment 16 to the storage member 112.
  • the segments 16 are loaded with the lowest possible transverse forces during transfer and can therefore subsequently be stacked into a stack with a very high positional accuracy.
  • the third free transfer stamp 113 is in this position of the removal device 111, i.e. the transfer position at a standstill and / or at the low rotational speed in the "10 o'clock position” and at an angle of 60 degrees to the transfer station XA of the transfer drum 5 in the “12 o’clock position”. Since the free transfer stamp 113 must again have the peripheral speed of the segments 16 on the transfer drum 5 in the transfer position of the removal device 111, the removal device 111 is then accelerated again until the free transfer stamp 113, which was previously in the "10 o'clock position", is in the "12 o'clock position”. Clock position “passes through the transfer station XA at the jacket speed of the segments 16 fed on the transfer drum 5 and a segment 16 takes over.
  • the removal device 111 in the form of the rotating body driven to a rotary movement with the three transfer stamps 113 arranged at an angle of 120 degrees to one another is therefore accelerated and decelerated in a repeating sequence, with the rotating body decelerating three times during one revolution in accordance with the number of transfer stamps 113 and is accelerated three times.
  • the removal device 111 can also have an even number of transfer stamps 113, in which case the transfer station XA and the transfer station XB must be placed differently, for example in the “12 o'clock position” and the "4 o'clock position", since due to the different requirements regarding the movement states of the removal device 111 when taking over and handing over the segments 14, it is not possible for a segment 16 to be handed over at the same time as a second segment 16 is taken over So two transfer stamps 113 do not pass through the transfer station XA and the transfer station XB at the same time. It is therefore advantageous to provide an odd number of removal stamps 113, since the transfer station XA and the transfer station can be arranged, as can be seen in the two representations of Figure 4.
  • the movement of the removal device 111 is controlled here in such a way that the removal device 111 is decelerated and accelerated overall without the distances between the transfer stamps 113 changing from one another.
  • the removal device 111 is formed here by a rotating body in the form of a drum which is driven to rotate, so that the transfer stamps 113 in this case are arranged at unchanging angles to one another during the rotational movement.
  • the transfer stamps 113 are arranged here equidistantly at the same angles to one another and are driven together with the base body of the removal device 111.
  • the storage element 112 has a receptacle 115 which can be moved linearly by means of a lifting device 116, the movement of the receptacle 115 being triggered by activation of the lifting device 116 and being guided by means of a guide device, for example a guide rod.
  • the receptacle 115 can be moved linearly between a receiving position and a delivery position, the receiving position of the receptacle 115 being arranged as close as possible to the transfer station
  • the storage element 112 has a storage lever 117 with a comb-like structure with a plurality of mutually parallel webs 118, which are dimensioned in width and arrangement so that when the removal device 111 rotates due to their position or through an active movement to the Engage in the gap between the webs 118 of the transfer stamp 113 and passively or actively comb out the segment 16 held thereon from the transfer stamp 113 in the transfer station XB. If the transfer stamps 113 are stationary in the transfer station The storage lever 117 is included driven to a periodic linear lifting movement by means of a drive device. During the movement of a transfer stamp 113 into the transfer station Removal device 111 and takes the segment 16 with it in the direction of its surface normal.
  • the linear lifting movement of the storage lever 117 ends with the storage of the segment 16 in the receptacle 115 of the storage member 112.
  • the stroke of the lifting movement of the storage lever 117 is controlled so that the segment 16 is in the receptacle 115 without a falling movement and with the lowest possible pressure force is filed.
  • the stroke is controlled depending on the increasing stack height of the segments 16 stacked in the receptacle 115 by decreasing as the number of stacked segments 16 increases.
  • the receptacle 115 can also be driven to a lifting movement by means of a linear drive device after a segment 16 has been deposited, the stroke in this case corresponding to at least the thickness of the segment 16.
  • the stroke of the storage lever 117 can be selected to be constant.
  • the receptacle 115 is moved away from the removal device 111 by a stroke corresponding to the thickness of the segment 16 plus a slight additional path of, for example, one millimeter.
  • the storage area the lever is driven to a lifting movement, in which the stroke is increased by the additional travel of, in this case, ideally one millimeter, each time a segment 16 is placed. Due to the proposed solution, the receptacle 115 is additionally moved away from the removal device 111 by a factor corresponding to the number of stacked segments 16 times the additional path, so that an additional free space is formed into which the converter 114, described in more detail below, can enter without that a further movement of the recording 115 is required.
  • the receptacle was then moved an additional twenty millimeters away from the removal device 111, i.e. away from the transfer station XB, and the converter 114 can be moved without any further movement of the Recording 115 can be moved into the transfer station XB to support the subsequent segments 16.
  • a vacuum channel system extends in the storage lever 117.
  • the vacuum channel system has a supply channel.
  • Several branch channels branch off from the supply channel.
  • the branch channels are arranged leading away from the supply channel and towards a free surface of the storage lever 117.
  • vacuum lines 120 are provided in the storage lever 117, which can be seen in FIG.
  • the vacuum lines 120 open with their openings into the underside of the storage lever 117 into a take-over surface provided thereon.
  • the vacuum lines 120 are connected to an external, inherently flexible line of an external vacuum supply 121.
  • the vacuum feed 121 with negative pressure into the vacuum lines 120 of the storage lever 117 is controlled so that the negative pressure in the vacuum Lines 120 are already present when one segment 16 is fed into the transfer station XA via a transfer stamp 113, and the segment 16 is still held on the transfer stamp 113 via the vacuum lines 122 of the transfer stamp 113.
  • the storage lever 117 comes into contact with its underside in the transfer station
  • the segment 16 is thus briefly sucked towards its top side in the same direction in this case by the negative pressures acting in the vacuum lines 120, 122 of the transfer stamp 113 and the storage lever 117.
  • Only when the storage lever 117 holds the segment 16 above the negative pressure in its vacuum lines 120 is the negative pressure in the vacuum lines 122 of the transfer stamp 113 switched off.
  • the vacuum in the vacuum lines 122 of the transfer stamp 113 and the movement of the deposit lever 117 overlap, so that the segment 16 is pulled off from the deposit lever 117 against the vacuum that is still present in the vacuum lines 122 of the transfer stamp 113.
  • the segment 16 is therefore permanently exposed to a suction force, first from the removal device 111 and then from the storage lever 117.
  • the vacuum lines 120 are connected to an external vacuum supply via a flexible line 121.
  • the flexible line also allows the vacuum supply can be realized via the interface of the moving parts.
  • the storage lever 117 has a curved take-over surface on its upper side facing the segment 16 to be transported away, which is formed by the end faces of the webs of the storage lever 117.
  • the curvature of the surface corresponds to the curvature of the transfer surface 123 of the transfer stamp 113, so that the webs of the storage lever 117 and the transfer stamp 113 complement each other in the engaged position of the storage lever 117 to form an enlarged, homogeneous, curved contact surface.
  • the receptacle 115 can also have vacuum lines which can be subjected to negative pressure, the openings of which are arranged in such a way that they generate a suction force on the segments 16 to be taken over when negative pressure is applied.
  • the segments 16 can then be placed in the transfer station Storage member 112 can be transferred through the storage lever 117 in addition to the combing process described above.
  • This process of releasing the segments 16 from the transfer stamp 113 of the removal device 111 into the receptacle 115 of the storage member 112 is repeated until, via a suitable sensor device, a predetermined height of the stack of segments 16 built up in the receptacle 115 is exceeded or a predetermined number is reached Segments 16 stacked in the receptacle 115 are recognized.
  • the lifting device 116 is then activated. fourth and move the receptacle 115 with the stack of segments 16 linearly from the receiving position into the delivery position to the removal device 3.
  • the number of segments 16 supplied and the number of segments 16 removed in previous ejection devices are also known, so that the lifting device 116 can also be activated when the predetermined number of segments to be stacked is reached 16 is recognized based on the number of stacked segments 16 known in the machine control.
  • the storage element 112 also has a converter 114 which can be moved from a standby position into a holding position, which is arranged in the holding position during the process of the receptacle 115 for transporting away the stacks and forms an intermediate support for depositing the segments 16, as in the left-hand illustration of the figure 4 can be seen.
  • the provided converter 114 makes it possible to deposit the segments 16 even when the receptacle 115 filled with the previously assembled stack is moved into the delivery position to transfer the stack from the removal device 111 and thus to take over the segments 16 in the transfer station XB is not available. This enables an uninterrupted, i.e. continuous, delivery of the segments 16 from the removal device 111 with the high stacking rate this enables.
  • the converter 114 is present using the free space created due to the movement of the receptacle 115 and/or due to the between the transfer stamps 113 Free spaces moved from the ready position to the holding position.
  • the converter 114 is moved with its support surface into a space between the receptacle 115 and/or the stack of segments 16 built therein and the imaginary outer diameter of the transfer stamp 113, so that the next segment 16 from the next transfer stamp 113 is not placed on the stack the recording 115 but instead is placed on the support surface of the converter 114.
  • the converter 114 then forms an intermediate receptacle in the holding position for depositing the segments 16.
  • the lifting device 116 is activated and the receptacle 115 with the stack of segments 16 vertically downwards in a linear movement moved from the receiving position into a delivery position assigned to the removal device 3.
  • the receptacle 115 is moved linearly in the direction of the surface normal of the segments 16 stacked to form the stack, so that as far as possible no transverse forces act on the stack and the segments 16 during this movement. This can ensure that the segments 16 stacked in exactly the right position individually and the stack in the exact position as a whole do not slip laterally. If this makes sense, the segments 16 stacked to form the stack can also be additionally fixed to one another using a tape.
  • the receptacle 115 and the converter 114 each have a support surface, which is formed by the surfaces of a plurality of identical webs 118 arranged parallel and equidistant from one another.
  • the converter 114 and the receptacle 115 engage with each other with their webs 118 during their movements to transfer the stacks of segments 16. So, after the stack has been delivered to the removal device 3, the receptacle 115 is moved back into the receiving position and its webs 118 come into engagement between the webs 118 of the converter 114.
  • the receptacle 115 and the converter 114 briefly form a common one in this position Support surface for the stack of segments 16 to be stacked.
  • the converter 114 is then moved from the holding position back to the standby position by moving laterally parallel to the webs 118 and thereby disengaging the webs 118 of the receptacle 115.
  • the stack is then supported exclusively by the support surface of the receptacle 115 and the further segments 16 are stacked onto the stack held in the receptacle 115 until the intended stacking height of the stack is reached and the process is repeated.
  • the receptacle 115 can be moved back into the receiving position after the stack has been delivered without colliding with the converter 114 and/or without the storage that is currently taking place of the segments 16 on the converter 114. Furthermore, the converter 114 can thereby be moved from the holding position back to the ready position without the stack losing its support.
  • the webs of the transfer stamp 113, the converter 114 and the receptacle 115 each form a profiled one Surface with a structure which enables mutual engagement of the converter 114 with the transfer stamp 113 and the receptacle 115.
  • the webs of one part are each arranged corresponding to the spaces in the other part. So that the engagement movement can be carried out reliably, the spaces and the webs are dimensioned so that they interlock with play. Further, the lands and the spaces are aligned to align in the direction of engagement movement of the parts.
  • the removal device 111 is provided by a rotary body that can be driven to rotate and has at least two support zones that are spaced apart from one another in the circumferential direction (and fixed in the circumferential direction) and extend over a length Y in the circumferential direction for taking over the segments 16 at the transfer station XA educated.
  • the support zones are formed here by the takeover surfaces 123 of the takeover stamps 113.
  • Free zones 124 are provided between the support zones over a length Z in the circumferential direction, which in the present exemplary embodiment are each formed by a radially inwardly extending recess and thereby form a free space.
  • the carrying zones are specifically designed to take over one segment 16 each, while the free zones are not designed to take over segments 16 and only deliberately form unused intermediate zones between the carrying zones, which are used to realize the different movement states of the removal device 111 and to take over and transfer the segments 16 are of importance.
  • the support zones and the free zones 124 are arranged in such a way that the removal device 111 is in a takeover phase at the takeover station XA, during which a segment 16 is taken over by a carrying zone, the storage element 112 passes through a free zone 124.
  • the free zones 124 are realized here through recesses. Alternatively, they can also be formed by passive surfaces of the rotating body in general, which do not have vacuum lines and are therefore not designed to take over segments 16.
  • the free zones are characterized by the fact that they do not carry any segments 16 and therefore do not release any segments 16 into the transfer station XB. It is therefore not necessary for the removal device 111 to meet special movement conditions in the takeover phase in which it passes the transfer station XB with the free zones and its movement behavior can only be designed to take over the segment 16 in the transfer station XA.
  • the support zones and the free zones 124 are arranged such that while a support zone passes the transfer station XA, a free zone passes the transfer station XB, and while a support zone is aligned with the transfer station XB, a free zone is aligned with the transfer station XA.
  • the free zones 124 can have a greater length Z in the circumferential direction of the rotating body than the support zones, so that the angles of rotation during which the free zones 124 pass the transfer station XB and the transfer station XA are larger than the angles of rotation during which the support zones pass the transfer station XB and the Pass transfer station XA.
  • the free zone 124 has a length Z that spans the transfer station XA and the transfer station XB.
  • the length Y of one or each support zone can be smaller, equal to or greater than the length Z of one or each free zone 124. Furthermore, the lengths Z of the free zones 124 between the support zones can also be the same or different, whereby the advantages described above can be achieved.
  • Drums with a cylindrical lateral surface can be used as rotating bodies, in which the supporting zones and the free zones 124 are formed by zones which are deliberately designed to carry or take over segments 16, while the free zones are not designed for this purpose and can also be referred to as passive zones. Furthermore, all bodies that take over the segments 16 in a rotational movement in the transfer station
  • the rotating body can also be designed as a rotor with several rotor arms, whereby one or each rotor arm can have a take-over surface at its free ends. Furthermore, one or each rotor arm can be provided with vacuum channels, which can open into the free ends of the rotor arms and in particular into the transfer surfaces arranged thereon.
  • the rotor arms of the rotor are positioned in a fixed position relative to one another in the direction of the orbit of the rotor, in particular fixed in their distance from one another in the direction of the orbit, in particular in their distance invariant in the direction of the orbit.
  • the removal device 3 has a large number of individually movable transport receptacles 119, which also have a support surface with identically designed webs 118 arranged parallel and equidistant from one another, the distances of which correspond to at least the width of the webs 118 of the receptacle 115.
  • the receptacle 115 can dip with its webs 118 between the webs 118 of the transport receptacle 119 and place the stack on the support surface of the transport receptacle 119.
  • the individually movable transport holders are used to transport the stacks away for further processing.
  • the stacking processes and the frequency of the stacks to be transported away can be determined from the recordings 115 vary. This change in the transport frequency of the stacks to be removed can be taken into account by the individual movability of the transport holders 119 in conjunction with a corresponding control.
  • the length Y of one or each supporting zone extending in the circumferential direction is greater than or equal to 20 mm, 50 mm, 60 mm, 90 mm or 100 mm.
  • the length Y of one or each supporting zone extending in the circumferential direction is less than or equal to 200 mm, 180 mm, 150 mm, 120 mm, 100 mm, 80 mm or 60 mm.
  • the extent of one or each support zone transverse to the length Y is greater than or equal to 40 mm, 50 mm, 60 mm, 80 mm, 90 mm, 100 mm, 150 mm, 180 mm or 300 mm.
  • the extent of one or each support zone transverse to the length Y is less than or equal to 400 mm, 350 mm, 300 mm, 250 mm, 200mm, 150mm, 130mm, 120mm, 110mm, 100mm, 90mm, 80mm, 50mm or 40mm.
  • Individual separator sheets or monocells with separator sheets can be considered as segments 16, with one or each separator sheet having a thickness of 8 to 25 pm, preferably 10 to 15 pm. With such thin separator sheets, very high specific energies and energy densities can be achieved with a very compact structure at the same time.
  • the cell stacking system 1 can be used for stacking anodes and/or cathodes and/or segments 16 or monocells with an anode, a cathode and two separator sheets with an electrode area of 2 x 4 cm for the production of tiny cells, in particular tiny pouch cells.
  • the cell stacking system 1 can also be used for stacking anodes and/or cathodes and/or segments 16 or monocells with an anode, a cathode and two separator sheets with an electrode area of 15 x 40 cm for the production of larger cells.
  • the areas of the takeover surfaces 123 of the takeover stamps 113 are dimensioned such that the segments 16 or the monocells can be taken over and transported over the entire or partial area.
  • Example dimensions of the anodes and/or cathodes are in the range from 100 x 50 mm to 200 x 100 mm, in particular from 120 x 60 mm to 180 x 90 mm with electrode areas from 800 mm 2 to 80,000 mm 2 , in particular in the range of 1200 mm2 to 60000 mm2 or 1800 mm2 to 36000 mm2 .
  • the webs 118 preferably form an area proportion of 30 to 70% of the surface of the transfer surfaces 123 of the transfer stamps 113, so that a segment 16 held thereon is on a transfer surface 123 with an area of 30 up to 70% of its surface lies flat.
  • the segment 16 can be fixed to the transfer surfaces 123 via the negative pressure in the vacuum lines 122.
  • the proposed surface area is preferred in that it enables a gentle takeover and a gentle transport of the segments 16 while at the same time fixing the segments 16 in a precise position and an engagement of the storage lever 117 made possible by the spaces between the webs 118 with a lifting movement made possible thereby.
  • An important and independently inventive aspect of the present invention further consists in a sub-device of or in a cell stacking system described at the outset and a sub-method for producing cell stacks in a cell stacking system described at the outset, according to claim 35 or claim 39.
  • the supplied segments 16 of energy cells in a number A per unit of time are cleverly split into a number B per unit of time and a number C per unit of time.
  • the number B per unit of time can be advantageously transported further in a certain way and, so to speak, passed through and removed from the number A, after which the number C is already significantly reduced compared to the number A. This means that the number C is more easily accessible for orderly and precise stacking without hindering the flow of material.
  • the number B is then significantly reduced compared to the number A and is more easily accessible for orderly and precise stacking. In a certain way, a continuous, delay-free supply of divided partial streams to a cell stacking device 7 is made possible.
  • the stacking can be carried out in parallel in a certain way, after which high throughputs can be achieved.
  • An endless web EG of uncut segments 16 can be fed at high speed and the segments 16 cut from it can be further processed and stacked online.
  • a high stream of segments 16 can be transported reliably and effectively in an orderly manner, virtually without stopping or interruption, and can advantageously be divided into partial streams.
  • a current of segments 16, for example cut online from an endless path EG, with a number of A per unit of time can, for example, be split in such a way that every second segment 16 is removed from the stream and a stream of segments 16 with the number B per unit of time is formed from the removed second segments 16 and a stream of segments 16 with the number C is formed from the remaining segments 16 is formed per unit of time.
  • the distance between two segments 16 can be larger or approximately equal to the length of a segment 16.
  • the distance between two segments 16 can be larger or approximately equal to the length of a segment 16.
  • a distance formed in the stream of segments 16 with the number B between two successive segments 16 makes it possible, during further processing, to provide a sequence of segments 16 in which the distance and an associated time interval during conveying of the stream of segments 16 can be used to access a segment 16.
  • one or more removal devices 111 of a cell stacking device 11 can be given sufficient time in the time interval between the end of a first conveyed segment 16 and the beginning of a second conveyed segment 16 to be moved again, in particular from a delivery or waiting position, into the take-over position become.
  • the process of splitting is somewhat similar to opening a zipper, in which, when closed, all the elements lie next to each other with virtually no distance and, after opening, have approximately the distance of one element between them.
  • the segments 16, in contrast to the zipper comparison have a certain distance in the current with the number of A per unit of time, in particular not lying edge to edge or end to end.
  • the splitting as being in the current Segments 16 with the number A, the segments 16 of the stream with the number B and the segments 16 of the stream with the number C lie alternately one behind the other, for example "yellow” and "red” segments 16.
  • the stream is split into segments 16 with the number A and the segments 16 of the stream with the number B and the segments 16 of the stream with the number C are handed over or allowed to pass according to their alternating sequence.
  • a stream of “yellow” segments 16 with the number B per unit of time and a stream of “red” segments 16 with the number C would then be generated.
  • the segments 16 would each have a distance from one another that is greater than or approximately equal to the length of a segment 16.
  • the transport speed of the streams on segments 16 can be kept at least approximately the same with the number A per unit of time, the number B per unit of time and the number C per unit of time.
  • distances between the segments 16 in the streams “B” and “C” can be achieved in a simple manner without having to change the position of the segments 16 in the streams “B” and/or “C”, which Particularly gentle handling of the segments 16 is ensured and high throughputs are permitted.
  • the splitting of the segment stream of the number A starting from the feed device 2 into the two partial streams with the number B and C enables, with a predetermined and limited stacking capacity of a cell stacking device 11, an increase in the number A of supplied segments 16 per unit of time, in which the number A of supplied segments 16 are stacked in two separate and parallel cell stacking devices 11 with a correspondingly lower stacking rate. If the delivery rate of the supplied segments 16, i.e. the number A, is to be further increased, the inflow of segments 16 in the number A can be divided into further partial flows of the number D, E, F, etc. and then stacked in parallel in further cell stacking devices 11.
  • the basic idea of dividing the inflow of the segments 16 into several cell stacking devices 11 thus enables a significantly higher conveying capacity of the segments 16 while at the same time stacking the segments 16 in the cell stacking devices 11 in a precisely positioned manner, since the stacking speed in the sense of a precisely positioned stacking is correspondingly smaller than the feed rate of the segments 16 can be designed via the feed device 2.
  • the number B of segments 16, which are fed to the second conveyor unit F2 in the first transfer area G1, is greater than the number C of segments 16, which are removed in the second delivery area G2.
  • the segments 16 are subjected to various quality tests and tests of the correct arrangement of the parts of the segments 16 relative to one another, such as contact tabs, fixing devices, etc., whereby if non-compliance with the quality specifications is detected, the segments 16 that are found to be “out of order”. be removed from the conveying process. This means that the number of segments 16 finally stacked is always slightly smaller than the number of segments 16 supplied.
  • the segments 16 removed in the second delivery area G2 have already been completely checked, for example also by means of a sensor device arranged between the first delivery area G1 and the second delivery area G2, so that the number C of the removed segments 16 are completely stacked without further segments 16 are discharged.
  • the segments 16 transferred in the second delivery area G2 subsequently pass through a further transport route, so that they can still slip slightly or be influenced in some other way, so that further tests and associated rejections of the segments 16 may subsequently be necessary. It therefore makes sense to dimension the number B of segments 16 transferred to the second delivery unit F2 in the first delivery area G1 to be larger than the number C of segments 16 delivered in the second delivery area G2.
  • the number B of segments corresponds to a multiple of the number C.
  • a structurally simple structure with correspondingly simple stacking can be achieved by providing a plurality of identical cell stacking devices 11. In the present case, four cell stacking devices 11 are provided, as can be seen in FIG. 1, so that the number B of segments 16 transferred in the first delivery area G1 corresponds to three times the number C of segments 16 transferred in the second delivery area G2.
  • the 1 can be operated by the proposed partial device and/or the proposed partial method with a high conveying rate of the segments 16 in the feed device 2 and at the same time a precisely positioned stacking of the segments 16 in the cell stacking devices 11, since the stacking rate of the segments 16 in the cell stacking devices 11 due to the solution according to the invention is significantly lower than the feed rate of the segments 16 in the feed device 2.
  • the feed rate of the segments 16 in the feed device 2 corresponds to the number A, for example 400 segments 16 per unit of time, for example per minute, the number would be C in this case 100 segments per minute and the Number B can be 300 segments per minute. The reduction in segments 16 due to rejections due to quality defects is not taken into account here.
  • the proposed sub-device can be further improved as desired with the features of the proposed cell stacking system 1, with the parallel arrangement of the cell stacking devices 11 and their assignment to the four transfer drums 5 being particularly important, since this ensures a precisely positioned stacking of the product streams of the segments 16 divided by the sub-device enabled.
  • the proposed sub-method can also be further improved by a combination with the features of the proposed method for controlling a cell stacking system 1, since the proposed method contains essential suggestions as to how the cell stacking system 1 can be better controlled for stacking the partial flows formed by the sub-process .

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Collation Of Sheets And Webs (AREA)

Abstract

L'invention concerne une installation d'empilage de cellules (1) destinée à empiler des segments (16) de cellules d'énergie, laquelle comprend : un dispositif d'alimentation (2) qui achemine en continu les segments (16) à une certaine vitesse d'alimentation, et au moins un dispositif d'empilage de cellules (11) qui reçoit les segments (16) du dispositif d'alimentation (2) et les empilent les uns sur les autres, le dispositif d'empilage de cellules (11) comportant au moins un dispositif de prélèvement (111) et un organe de dépôt (112), le dispositif de prélèvement (111) étant entraîné dans un mouvement alterné répétitif composé d'une accélération et d'une décélération, et le dispositif de prélèvement (111) prenant en charge les segments (16), à la vitesse d'alimentation, du dispositif d'alimentation (2) et le transférant en un mouvement décéléré ou à un état immobilisé à l'organe de réception (112).
EP23709707.6A 2022-03-08 2023-03-07 Installation d'empilage de cellules destiné à empiler des segments de cellules d'énergie, procédé de commande d'une telle installation d'empilage de cellules, dispositif partiel d'une installation d'empilage de cellules ou situé dans une installation d'empilage de cellules et procédé partiel utilisé dans le cadre de la fabrication d'empilage de cellules dans une installation d'empilage de cellules Pending EP4490799A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022105399.7A DE102022105399A1 (de) 2022-03-08 2022-03-08 Zellstapelanlage zum Stapeln von Segmenten von Energiezellen, Verfahren zur Steuerung einer derartigen Zellstapelanlage, Teilvorrichtung einer oder in einer Zellstapelanlage und Teilverfahren beim Herstellen von Zellstapeln in einer Zellstapelanlage
PCT/EP2023/055741 WO2023170062A2 (fr) 2022-03-08 2023-03-07 Installation d'empilage de cellules destiné à empiler des segments de cellules d'énergie, procédé de commande d'une telle installation d'empilage de cellules, dispositif partiel d'une installation d'empilage de cellules ou situé dans une installation d'empilage de cellules et procédé partiel utilisé dans le cadre de la fabrication d'empilage de cellules dans une installation d'empilage de cellules

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EP4490799A2 true EP4490799A2 (fr) 2025-01-15

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EP23709707.6A Pending EP4490799A2 (fr) 2022-03-08 2023-03-07 Installation d'empilage de cellules destiné à empiler des segments de cellules d'énergie, procédé de commande d'une telle installation d'empilage de cellules, dispositif partiel d'une installation d'empilage de cellules ou situé dans une installation d'empilage de cellules et procédé partiel utilisé dans le cadre de la fabrication d'empilage de cellules dans une installation d'empilage de cellules

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US (1) US20250201895A1 (fr)
EP (1) EP4490799A2 (fr)
JP (1) JP2025508038A (fr)
KR (1) KR20240161140A (fr)
CN (1) CN118715647A (fr)
CA (1) CA3249981A1 (fr)
DE (1) DE102022105399A1 (fr)
WO (1) WO2023170062A2 (fr)

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JP2026502918A (ja) 2023-11-17 2026-01-27 エルジー エナジー ソリューション リミテッド バッテリアセンブリおよびこれを含むデバイス
EP4678575A1 (fr) 2024-07-10 2026-01-14 Grob-Werke GmbH & Co. KG Dispositif, unité de transport et procédé de transport d'éléments souples

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Publication number Priority date Publication date Assignee Title
US5346206A (en) 1992-01-02 1994-09-13 Rima Enterprises, Inc. Processing a stream of imbricated printed products into successive stacks
DE69211674T3 (de) 1992-03-18 2000-11-16 Matsushita Electric Industrial Co., Ltd. Verfahren und Vorrichtung zum Stapeln und Transportieren von Bleiakkumulatorplatten.
US6022443A (en) 1994-01-25 2000-02-08 Kimberly-Clark Worldwide, Inc. Method and apparatus for placing discrete parts onto a moving web
DE4437722A1 (de) 1994-10-21 1996-04-25 Giesecke & Devrient Gmbh Verfahren und Vorrichtung zur Verarbeitung von Banknoten
DE102014113588A1 (de) 2014-09-19 2016-03-24 Manz Ag Verfahren zur Herstellung einer Batteriezelle
DE102017216213A1 (de) 2017-09-13 2019-03-14 Robert Bosch Gmbh Verfahren zur Herstellung eines Elektrodenstapels
DE102017216188A1 (de) * 2017-09-13 2019-03-14 Robert Bosch Gmbh Verfahren zur Herstellung eines Elektrodenstapels für eine Batteriezelle und Batteriezelle
DE102017216133A1 (de) * 2017-09-13 2019-03-14 Robert Bosch Gmbh Verfahren zum Trennen bandförmigen Elektroden- und Separatormaterials auf einer gekrümmten Oberfläche
JP7023181B2 (ja) * 2018-05-17 2022-02-21 株式会社京都製作所 電池材料積層装置
JP6819652B2 (ja) 2018-06-12 2021-01-27 トヨタ自動車株式会社 電池材料積層装置
JP2020013744A (ja) 2018-07-20 2020-01-23 株式会社京都製作所 電池材料用ドラム装置
JP7329586B2 (ja) 2019-03-29 2023-08-18 パナソニックホールディングス株式会社 電極体の切断装置及びセパレータの切断装置

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WO2023170062A3 (fr) 2023-11-09
CA3249981A1 (fr) 2025-06-17
JP2025508038A (ja) 2025-03-21
KR20240161140A (ko) 2024-11-12
CN118715647A (zh) 2024-09-27
DE102022105399A1 (de) 2023-09-14
WO2023170062A2 (fr) 2023-09-14
US20250201895A1 (en) 2025-06-19

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