EP3465796A1 - Batterie et plaque de connexion pour batterie - Google Patents

Batterie et plaque de connexion pour batterie

Info

Publication number
EP3465796A1
EP3465796A1 EP17732763.2A EP17732763A EP3465796A1 EP 3465796 A1 EP3465796 A1 EP 3465796A1 EP 17732763 A EP17732763 A EP 17732763A EP 3465796 A1 EP3465796 A1 EP 3465796A1
Authority
EP
European Patent Office
Prior art keywords
battery
electrically
connecting plate
battery cells
contacting
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.)
Withdrawn
Application number
EP17732763.2A
Other languages
German (de)
English (en)
Inventor
Thomas Krämer
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.)
E Seven Systems Technology Management Ltd
Original Assignee
E Seven Systems Technology Management Ltd
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
Priority claimed from DE102016112431.1A external-priority patent/DE102016112431A1/de
Priority claimed from DE202016104759.5U external-priority patent/DE202016104759U1/de
Application filed by E Seven Systems Technology Management Ltd filed Critical E Seven Systems Technology Management Ltd
Publication of EP3465796A1 publication Critical patent/EP3465796A1/fr
Withdrawn legal-status Critical Current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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/526—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • 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
    • H01M10/052—Li-accumulators
    • 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
    • H01M10/34—Gastight accumulators
    • H01M10/345—Gastight metal hydride accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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

  • the present invention relates to a battery having a cell arrangement, the cell arrangement having a plurality
  • Battery cells which are electrically conductively connected to each other in an electrical series and parallel connection, wherein the cell array more
  • Battery cells wherein the battery has at least two battery sections and each battery section consists of a plurality of electrically parallel-connected battery cells, and wherein each battery cell has a positive and a negative end terminal.
  • Voltage can be adapted to the respective application.
  • An especially important purpose for the present invention is the use of batteries in electrically powered motor vehicles. But such batteries can also be used in many other applications.
  • the battery cells may be primary or
  • Secondary cells act, the battery is often referred to when using secondary cells as a battery pack. From the prior art are different
  • battery packs with lithium-ion battery cells and nickel-metal hybrid battery cells are used in many applications.
  • battery cells of a battery cell type are used for a battery. It is also possible and convenient for some applications, battery cells
  • the areas of elevated or high temperatures are also referred to as thermal hotspots.
  • Cell arrangement is determined by a variety of factors such as the type of battery cells used, the relative arrangement of the battery cells to each other, the charging or flowing through the battery cells
  • Battery cell influenced.
  • it is considered to provide a battery in which the occurrence of
  • the object is achieved in that the battery cells of the battery sections are aligned so that all the positive end terminals of the battery cells of each battery section lie in a common positive contacting plane and that all negative end terminals of the battery cells of each battery section in a common negative
  • Battery sections are arranged to each other, that end connections a contacting level of a first
  • connection plate is arranged, the at least two thermally and electrically conductive
  • Connecting elements of the connecting plate are electrically and thermally conductively connected to each other, so that the battery cells of the successive battery sections are connected in series via the connecting plate, so that connected to the contacting elements of the connecting plate thermally and electrically conductive
  • Battery cells of a battery section thermal and are electrically connected to each other and so that an electric current and a heat flow are distributed over the entire cell array.
  • an at least partially electrically and thermally conductive connecting plate between battery sections is outstandingly suitable for preventing the occurrence of temperature hotspots within a battery.
  • connection plate is particularly well suited to conduct a current between the battery sections.
  • the current is distributed over a large area, whereby a low resistance is given.
  • a high resistance is to be avoided, since this causes power losses.
  • the connecting plate has the significant advantage that thermal energy can be dissipated from the battery cells particularly well. The thermal energy is distributed over a wide area.
  • a large part of the thermal energy produced in the battery cells is conducted through the entire cell arrangement via the end terminals of the battery cells in the construction according to the invention.
  • the end connections of the batteries are suitable for the transmission of thermal energy in special way, since the end terminals are thermally conductively connected to an interior of the battery and even consist of a thermally and electrically highly conductive material.
  • cooling and heat dissipation via a cell jacket of a battery cell is often less efficient, since the cell jacket is usually made of a thermally and electrically poorly conductive material.
  • Construction achieved that at least by the remaining battery cells, an electric current and a heat flow is distributed evenly within the battery. A uniform distribution of electric current and heat flow helps to avoid hotspots within the battery.
  • the parallel circuit according to the invention it is possible to distribute the current uniformly on the battery cells. An even distribution of electricity contributes to one
  • the battery according to the invention has a significant advantage over conventional batteries in which battery cells are successive
  • the batteries are designed as round cells.
  • Round cells have a cylindrical base body with arranged on the opposite side surfaces
  • the round cells of a battery section according to the invention therefore arranged so that extending between the side surfaces center axes of the round cells in parallel
  • round cells have the advantage over a conventional cuboid coffee bag cell that, within a cell arrangement, between the cells
  • Round cells due to their geometry cavities present are. These cavities are particularly advantageous when it comes to a malfunction within the battery, in which burst one or more battery cells or even explode. In a conventional battery assembly with one or more coffee-bag cells, there is no space within the battery in which the bursting or exploding batteries can expand.
  • the battery cells are arranged so that each battery cell on at least one other battery cell in a
  • each battery cell is adjacent to at least two other battery cells in a cell cladding region.
  • the battery cells are arranged particularly tightly inside the battery. The energy density of the battery can thus be increased by this arrangement.
  • each battery cell is adjacent to at least two other battery cells in a cell cladding region.
  • the battery cells are arranged particularly tightly inside the battery. The energy density of the battery can thus be increased by this arrangement.
  • each battery cell is adjacent to at least two other battery cells in a cell cladding region.
  • Battery cells offset from each other, so that the battery cells in corner areas of a battery section abut two other battery cells and abut in edge regions of a battery section to three other battery cells and so that all battery cells that are not arranged in a corner or a peripheral region abut six other battery cells.
  • the outermost positive end terminals are at one end of the cell assembly with a Plus line arrangement and the negative end terminals at one end of the cell array with a
  • Negative line arrangement connected electrically and thermally conductive.
  • Negative line arrangement serve to dissipate both electrical current and heat from the cell assembly.
  • the positive conductor arrangement and the negative conductor arrangement each comprise an electrically and thermally conductive connection plate.
  • connection plate becomes the outermost positive end connections
  • the positive lead arrangement and the negative lead arrangement are formed as copper plates. This ensures due to the high electrical conductivity of copper, that the current is evenly distributed and low
  • the high thermal conductivity of copper also ensures that thermal energy can be dissipated from the battery. Especially at high currents is the high electrical
  • the copper plate Due to its large area, the copper plate forms an extended star point, which has a particularly low thermal and electrical resistance. By varying the thickness of the copper plate may be a change of their
  • Heat capacity can be effected to optimize the heat distribution within the battery.
  • the outermost positive end connections or the outermost negative end connections are interconnected by an electrically and thermally conductive connection plate having a heat sink structure. As a result, heat can be dissipated particularly good laterally from the battery.
  • the copper plates are formed so that thermal energy and electrical energy over all
  • the copper plates have a material thickness of 4 mm to 6 mm. Copper plates of this dimensioning are for
  • the copper plates have a material thickness of 5 mm to 10 mm. Copper plates of this dimension are optimized for batteries intended for use in electric vehicles.
  • the battery cells and the battery cells are identical to each other.
  • connection plates of the cell assembly Connecting plates of the cell assembly pressed together.
  • the battery cells are firmly pressed together, so that a good electrically and thermally conductive connection can be achieved with the connection plates.
  • the connection plates Preferably, the
  • At least one spindle is provided in the battery, which is guided in a longitudinal direction through the battery.
  • Verpressiana which abut the cell assembly and the components of
  • Screw nuts are pressed against the cell assembly.
  • the battery cells and the connecting plates of the battery cells are identical to a particular embodiment of the invention.
  • the positive-line arrangement and / or the minus-line arrangement can also be cast. Such encapsulation allows the battery cells, the connection plates and optionally the positive lead arrangement and the
  • this invention can be made of a thermally conductive material.
  • thermal energy is easier to dissipate from the cell assembly and can be distributed evenly throughout the battery.
  • the potting preferably consists of a non-electrically conductive material. It is advantageous if the battery cells have no external insulation. Thus, in one embodiment with a non-conductive potting, the battery cells may have a particularly simple construction.
  • thermally conductive connection plate as a circuit board is executed.
  • a circuit board consists of a substrate on which at least one conductor track element and other electrical components can be applied.
  • the electrically and thermally conductive connecting plate is designed as a metal plate.
  • a metal plate is advantageous because most metals have good thermal conductivity and very good electrical conductivity.
  • Metal plate is therefore particularly well suited to switch two battery sections in parallel and in series. Another advantage of using metal plates is that they are very easy and inexpensive to produce.
  • the electrically and thermally conductive connection plate is a
  • a copper plate is particularly suitable for use as an electrically and thermally conductive
  • Connection plate because it has a particularly high thermal and electrical conductivity.
  • connection plate for connecting battery cells in a battery as described above, wherein the connection plate is formed as a circuit board.
  • the board has a non-electrically conductive substrate as well as a front side and a back side, and they are also different from each other
  • each pair of contacting elements comprises a first contact element on the front side and a second contact element on the back side of the board, wherein each first contact element with each second
  • Contacting element is electrically and thermally conductively connected, and wherein each pair of
  • Connection plate is connected.
  • the electrically and thermally conductive connection region can be embodied as a bore in the circuit board, which has an inner edge onto which an electrically and thermally conductive metal layer
  • the metal layer is preferably riveted in the board, vapor-deposited on the inner edge or printed on the inner edge.
  • the contacting elements of each pair of contacting elements are preferably provided facing each other in front and back, so that the smallest possible distance between the
  • a bus system can be provided in order to connect electronic components arranged on the board to one another in terms of data and to a battery management system.
  • a bus system it is possible to use sensors or other components on the circuit boards are provided within a battery.
  • Circuit board is easy to handle, especially if the substrate according to the invention as non-conductive
  • Plastic material is formed, because in this case, it has a low weight.
  • On the board must be at least one electrically and thermally conductive
  • the substrate of the board according to the invention the electrically and thermally
  • the fuse offers an important protection, if unwanted large currents occur inside the board. In this case prevents the
  • the fuse is particularly advantageous when a battery cell is damaged so that their resistance drops sharply. In this case, the electricity increased by the battery cell
  • a fuse is preferably formed by a thermally and electrically conductive material, the like
  • Fuse have a sufficiently small conductor cross-section. According to the fuse should
  • Copper has a particularly good thermal and electrical conductivity, so that the connecting plate a particularly good thermal and electrical
  • an electrical insulator with a high thermal conductivity is provided on the substrate and / or as material of the substrate for the thermal connection between the contacting elements.
  • the electrical insulator with a high thermal conductivity can be used as the
  • Substrate material of the connecting plate may be provided.
  • the electrical insulator according to the invention can also be used to thermally conductive connecting elements
  • connection plate formed.
  • connection plate of flexible and / or elastic
  • Be formed materials For example, a
  • Substrate made of an elastic polymer can be used.
  • the applied on the connection plate electrically and thermally conductive material has a sufficient
  • Connection plate is not damaged, whereby sections of the board could lose or lose their thermal and electrical conductivity.
  • Connection plate is particularly good at the
  • connection plate for example, during compression, such a connection plate can adapt better.
  • the electrically and thermally conductive material applied to the connection plate is preferably provided mirror-inverted on the front and rear of the connection plate.
  • the electrically and thermally conductive material applied to the connecting plate it is also possible according to the invention for the electrically and thermally conductive material applied to the connecting plate to be applied to the front in an arrangement which does not coincide with an arrangement of the electrically and thermally conductive on the rear side in a mirror image.
  • At least one pair of contacting elements is surrounded by an electrical insulator, wherein an electrically and thermally conductive spacing conductor track electrically and thermally conductively connects the pair of contacting elements to the connecting portion.
  • the non-electrically conductive region can be formed according to the invention by the substrate of the board.
  • connection region may be coated by a non-conductive layer. So it can be ensured that the connection plate with
  • electrically and thermally conductive can be contacted.
  • the spacer track can be used as a fuse
  • Beabstandungsleiterbahn as a backup is particularly advantageous, since this can be avoided that act too high currents into the connection area can. In addition, it can be avoided that too high a current in the connection area in one
  • connection area is flat
  • connection region can extend over the entire surface of the substrate, wherein it only passes through the substrate
  • Embodiment of the invention surrounded, is interrupted.
  • the electrical insulators according to the invention for example, the Beabstandungsleiterbahn in the
  • Connection area defined and specified. An areal connection area reduces the electrical resistance between the contacting areas.
  • Connection area can alternatively be part of the area
  • At least one pair of contacting elements is centrally spaced from one another
  • the conductor loop forms part of the connection area.
  • the conductor loop can be arranged continuously in the substrate of the connecting plate, wherein it is on the front and the back of each of a
  • the conductor loop can also be applied to the front and / or the back of the substrate in a thin layer, wherein on the front and the back of a
  • the conductor loop on the front and on the back is applied as a thin layer, it is preferably in one
  • the conductor loop is circular
  • Invention is at least one a pair of
  • Conductor loops is electrically connected, the other pairs of contact elements enclose. Due to the electrically and thermally conductive connection of the conductor loops are indirectly also the pairs of
  • the at least one conductor loop or the at least one further conductor loop can be connected to at least two other conductor loops or outermost further conductor loops, in which the conductor loops or outermost further loops
  • Conductor loops so are areas of the conductor loops on top of each other. If two conductor loops intersect, then the two conductor loops are not only partially overlapping, but each conductor loop also partially runs inside the other conductor loop. If two conductor loops are connected by tracks, this means that the two
  • Conductor loops are spaced from each other and an electrical connection between the spaced conductor loops by at least one
  • additional interconnect is made in the substrate, which runs between the conductor loops.
  • the composite of conductor loops is made in the substrate, which runs between the conductor loops.
  • the contact can serve, for example, for connecting a measuring device.
  • This can be a temperature sensor.
  • a conductor connected to two contacts can be guided along the contacting elements in order to determine the temperature at the contacting elements.
  • the conductor must be electrically insulated from the contacting elements and the conductor loops.
  • an external temperature sensor connected to the contacts can be provided on the printed circuit board, which contact is applied to at least one battery cell, in order to prevent the same
  • the contact can also be used to connect a bus system via the measuring devices provided on the board
  • connection plate can be read and / or controlled.
  • at least one cooling line is provided in the connection plate in order to cool the connection plate and a battery in which the connection plate is inserted. According to the invention, such a
  • Connection plate on both sides have a contacting layer, which are electrically insulated by two insulating layers of a metal core in the interior of the connecting plate.
  • the contacting layer is preferably made of copper, aluminum, silver or a heat and
  • connection plate can be cooled particularly effectively.
  • the metal core is made
  • At least one cooling line may also be provided in a metal plate, for example a copper plate, or in a circuit board.
  • the battery cells inside the battery are in one
  • Casting material introduced Preferably that is
  • the potting material is slightly flexible. It may according to the invention in the potting material to a
  • Battery cells may be provided within a battery section each in an insert element.
  • An insert element is a rectangular or otherwise shaped container into which the composite material and the battery cells can be incorporated.
  • Insert element can be particularly easily mounted in the battery between two connecting plates by pushing it between them.
  • the use of a potting material offers the advantage that heat can be removed from the battery cells particularly efficiently.
  • the battery cells can also be preheated better. This also results in a homogenization of the temperature in the composite panels. Likewise, by a Verguss the battery cells the
  • FIG. 1 shows a schematically illustrated front view of a battery according to the invention
  • FIG. 2 is a schematic plan view of the battery shown in FIG. 1 a
  • Fig. 3 is a schematisehe shown view of a second embodiment of the battery according to the invention in a sectional view transverse to arranged in the battery
  • Fig. 4 is a schematically illustrated view of a fourth embodiment of the battery according to the invention in one Sectional view transverse to arranged in the battery
  • Fig. 5 is a schematically illustrated view of a
  • Fig. 6 is a schematically illustrated view of a
  • Fig. 7 is a schematically illustrated plan view of a first embodiment of the connecting plate of
  • Fig. 8 is a schematically illustrated plan view of a second embodiment of the invention.
  • Fig. 9 is a schematic plan view of a third embodiment of the invention.
  • FIG. 10 shows a schematically illustrated cross-sectional view of a fourth embodiment of the invention
  • FIGS. 1 and 2 schematically show a battery 1 with a cell arrangement 2.
  • 1 shows a front view and
  • FIG. 2 shows a plan view of the battery 1.
  • the battery 1 also has one
  • Battery cell frame and / or a suitable housing are not limited to the particular purpose battery parts.
  • the cell assembly 2 has a plurality of battery cells 3.
  • the battery cells 3 are arranged in a battery row 4 which has a plurality of battery sections 5 connected in series.
  • Each battery section 5 consists of a plurality of battery cells 3 connected in parallel, the battery cells 3 being arranged one above the other and next to one another.
  • the battery cells 3 are designed as round cells.
  • the cell assembly 2 points to the outside
  • Battery sections 5 more positive end terminals 6 and a plurality of negative end terminals 7.
  • the positive end terminals 6 are connected by a positive lead 8 and the negative end terminals 7 by a
  • Negative line 9 electrically and thermally conductively connected to each other.
  • the positive conductor arrangement 8 and the negative conductor arrangement 9 are each electrically conductive plates 10 made of copper.
  • the battery cells 3 of a battery section 5 and the battery cells 3 of an adjacent battery section 5 are connected by positive end terminals 6 and negative
  • connection plates 12 electrically and thermally conductively connected to each other.
  • connection plates 12 By the connection plates 12 inside the battery 1, the battery cells 3 become parallel and in series connected. An electric current and a heat flow are distributed over the entire cell assembly 2 by means of the connection plates 12.
  • the battery cells 3 of a battery cell section 5 rest against each other in cell cladding regions 13. In this way, a particularly compact construction of the battery 1 can be achieved.
  • FIG. 3 shows a schematically illustrated view of a second embodiment of the battery 1 according to the invention in a sectional view transversely to battery cells 3 arranged in the battery 1.
  • a battery section 5 is shown in a cross-sectional view. The single ones
  • Battery cells 3 are arranged in rows to each other and disposed within the battery 1 in a potting material 28. As a result, the battery cells 3
  • the battery cells 3 are each designed without an insulating jacket. This is possible as it is through the
  • Potting material from each other are electrically isolated.
  • a cooling plate 29 is provided in order to dissipate heat even better from the battery cells 3 via the potting material 28 from the battery 1 can.
  • cooling lines 30 are provided in the battery 1. Through this, a coolant can be guided in order to cool the battery 1 and in particular the battery cells 3.
  • 4 shows a schematic view of a second embodiment of the battery 1 according to the invention in a sectional view transversely to battery cells 3 arranged in the battery 1.
  • a battery section 5 is shown in a cross-sectional view. The single ones
  • Battery cells 3 are arranged offset to one another and disposed within the battery 1 in a potting material 28. Also in this embodiment, the
  • Cooling plate 29 is provided. Within the battery 1 run cooling lines 30 for cooling the battery. 1
  • Fig. 5 shows a schematic view of a portion of the second embodiment of the
  • Inventive battery 1 in a sectional view along the arranged in the battery 1 battery cells 3. Inside the battery 1 is a
  • Potting material 28 which encloses the battery cells 3 partially.
  • a cooling duct 30 runs parallel to the battery cells 3.
  • a cooling plate 29 is provided on the housing of the battery 1. The battery cells 3 are
  • the connecting plate 12 has
  • Both the contacting elements 15 and the contacting layer 31 are electrically and thermally very conductive. In the present case, they are made of copper.
  • the connection plate 12 has two insulation layers 32, which have a metal core 33 made of copper opposite to the one
  • the metal core 33 made of copper is capable of heat from the Dissipate connecting plate 12.
  • the metal core 33 is connected to the cooling plate 29. Furthermore, by the construction of the metal core 33 made of copper is capable of heat from the Dissipate connecting plate 12. The metal core 33 is connected to the cooling plate 29. Furthermore, by the construction of the metal core 33 made of copper is capable of heat from the Dissipate connecting plate 12. The metal core 33 is connected to the cooling plate 29. Furthermore, by the
  • Cooling line 30 is also passed through the potting material 28.
  • FIG. 6 shows a schematic view of a portion of a fourth embodiment of the invention
  • Inventive battery 1 in a sectional view along the arranged in the battery 1 battery cells 3. Inside the battery 1 is a
  • Potting material 28 which completely encloses the battery cells 3.
  • the interior of the battery is completely filled with the potting material 28.
  • Battery cell 3 extends a cooling line 30.
  • a cooling plate 29 is provided.
  • the battery cells are on both sides each with a
  • connection plate 12 contacted.
  • the connection plate 12 has contacting elements 15 in one
  • Contacting layer 31 are electrically and thermally very conductive. In the present case, they are made of copper.
  • the connection plate 12 has two insulation layers 32, which have a metal core 33 made of copper opposite to the one
  • the metal core 33 made of copper is capable of heat from the
  • the metal core 33 is connected to the cooling plate 29. Furthermore, by the connection of the metal core 33 to the cooling plate 29. Furthermore, by the connection of the metal core 33 to the cooling plate 29. Furthermore, by the connection of the metal core 33 to the cooling plate 29. Furthermore, by the connection of the metal core 33 to the cooling plate 29. Furthermore, by the connection of the metal core 33 to the cooling plate 29. Furthermore, by the connection of the metal core 33 to the cooling plate 29. Furthermore, by the cooling plate 29.
  • FIG. 7 shows schematically a cross-sectional view of a possible embodiment of the invention
  • Connecting plate 12 Here, the front side 14 of the connecting plate 12 is shown. A back (not
  • the connecting plate 12 is designed as a circuit board, which comprises an electrically non-conductive substrate, in which thermally and electrically conductive elements are integrated.
  • On the front side 14 of the connecting plate 12 are a plurality of thermally and electrically conductive contacting elements 15, each comprising a plurality of contacting points 16. In the middle of each contacting element 15 is a recess 17 in the connecting plate 12.
  • electrically conductive connecting conductor 18 is arranged, the contacting elements 15 on the two sides on the front side 2 and the back (not shown) of
  • Connecting plate 1 connects to each other.
  • the contacting elements 15 are enclosed by thermally and electrically conductive conductor loops 19.
  • the conductor loops 19 serve a particularly advantageous distribution of the electrical current within the
  • connection plate 12 when the connection plate 12 is in a battery 1.
  • the conductor loops 19 are circular, wherein the
  • Conductor loops 19 are located.
  • the conductor loops 19 are each connected by a thermally and electrically conductive spacer track 20 with the Contacting elements 15 electrically connected.
  • the spacer track 20 is as a fuse
  • the conductor loops 19 form a thermal and
  • connection plate 12 electrically conductive connection region 21.
  • a contact 22 is provided on the composite of conductor loops 19.
  • further contacts 23 are provided on a measuring track 24 on the board. At the measuring conductor 24, for example, a temperature sensor can be connected to the measuring conductor 24.
  • connection plate 12 is designed as a circuit board which comprises an electrically nonconductive substrate in which thermally and electrically conductive elements are integrated.
  • thermally and electrically conductive elements are integrated on the front 14 and on the back (not shown) of the connecting plate 12 are several thermally and electrically
  • Contacting elements 15 each comprise a flat contacting region 25 made of a thermally and electrically conductive material.
  • Contacting area 25 is on both sides of the
  • Connection plate 12 exposed, so that it for an electrical and thermal contact with a
  • Battery cell 3 is suitable. In the middle of each
  • Contacting element 15 is a recess 17 in the connecting plate 12. On the inside of the
  • Recess 17 is a thermally and electrically conductive Connecting conductor 18 is arranged, the
  • Connecting plate 1 connects to each other.
  • the contacting region 25 is surrounded by an electrical insulator 26 in which a spacing conductor track 20 is arranged.
  • the spacer track 20 connects the contacting region 25 with a surface
  • the spacer track 20 is dimensioned as a fuse.
  • the areally formed connecting region 21 achieves a particularly good conduction of current and heat between the contacting regions 25 of the connecting plate 12.
  • a plurality of contacts 22 on the connecting plate 12 are formed on the surface
  • Connection area 21 is provided. Furthermore, the
  • connection plate 12 is designed as a circuit board which comprises an electrically non-conductive substrate in which thermally and electrically conductive elements are integrated.
  • On the front 14 and on the back (not shown) of the connecting plate 12 are several thermally and electrically
  • Die Contacting elements 15 each comprise a flat contacting region 25 made of a thermally and electrically conductive material.
  • Contacting area 25 is on both sides of the
  • Connection plate 12 exposed, so that it for an electrical and thermal contact with a
  • Battery cell 3 is suitable. In the middle of each
  • Contacting element 15 is a recess 17 in the connecting plate 12. On the inside of the
  • Recess 17 is a thermally and electrically conductive connecting conductor 18 is arranged, which the
  • Connecting plate 1 connects to each other.
  • the contacting region 25 is surrounded by an electrical insulator 26 in which a spacing conductor track 20 is arranged.
  • the spacer track 20 connects the contacting region 25 with a surface
  • Spacing conductor 20 is dimensioned as a fuse. At each contacting area 25 are several
  • Transition regions 34 is a particularly good line of
  • connection plate 12 each have a plurality of contacts 22 provided on two conductor loops 19. Furthermore, the
  • Fig. 10 shows a schematically illustrated
  • connection plate 12 of the battery 1 has two contacting layers 31, which are provided with a plurality of contacting elements 15. These contacting elements 15 are flat elevations, resulting from the
  • Contacting layer 31 and the contacting elements 15 are made of an electrically and thermally conductive material. At each contacting layer 31 is a
  • Insulating layer 32 is provided, which has a metal core 33 in the interior of the connecting plate 12 with respect to the
  • the contacting layers 31 are connected to one another by web elements 35, which are guided over the insulating layers 32 and the metal core 33. Thus, the contacting layers 31 are connected to each other both thermally and electrically conductive. LIST OF REFERENCE NUMBERS

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne une batterie (1) comportant un agencement d'éléments (2). L'agencement d'éléments (2) comporte une pluralité d'éléments de batterie (3) qui sont reliés électriquement entre eux selon un circuit électrique série et parallèle. L'agencement d'éléments (2) comporte une pluralité de rangées de batteries (4) comprenant des éléments de batterie (3) montés électriquement en série. La batterie comporte au moins deux parties de batterie (5) et chaque partie de batterie (5) est constituée d'une pluralité d'éléments de batterie (3) montées électriquement en parallèle. Chaque élément de batterie (4) comporte une borne d'extrémité positive et une borne d'extrémité négative (7). L'invention est caractérisée en ce qu'une plaque de connexion (12) au moins en partie électriquement et thermiquement conductrice est disposée entre au moins deux parties de batterie (4) successives, laquelle plaque de connexion comporte au moins deux éléments de contact thermiquement et électriquement conducteurs, et en ce que les bornes d'extrémité des éléments de batterie (4) des deux parties de batterie (5) successives sont reliées à la plaque de connexion (12) de manière thermiquement et électriquement conductrice par le biais des éléments de contact, de sorte que les éléments de batterie (3) des parties de batterie (5) successives sont en parallèle et en série et de sorte qu'un courant électrique et un courant thermique sont répartis sur tout l'agencement d'éléments (2).
EP17732763.2A 2016-06-03 2017-06-01 Batterie et plaque de connexion pour batterie Withdrawn EP3465796A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102016110348 2016-06-03
DE102016112431.1A DE102016112431A1 (de) 2016-06-03 2016-07-06 Batterie und Batterieanordnung
DE102016112430.3A DE102016112430A1 (de) 2016-06-03 2016-07-06 Platine, Batterie und Batterieanordnung
DE202016104759.5U DE202016104759U1 (de) 2016-07-06 2016-08-30 Batterie und Verbindungsplatte für eine Batterie
PCT/EP2017/063325 WO2017207699A1 (fr) 2016-06-03 2017-06-01 Batterie et plaque de connexion pour batterie

Publications (1)

Publication Number Publication Date
EP3465796A1 true EP3465796A1 (fr) 2019-04-10

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Application Number Title Priority Date Filing Date
EP17732763.2A Withdrawn EP3465796A1 (fr) 2016-06-03 2017-06-01 Batterie et plaque de connexion pour batterie

Country Status (7)

Country Link
US (1) US20190198953A1 (fr)
EP (1) EP3465796A1 (fr)
CN (1) CN109792097B (fr)
BR (1) BR112019003931A2 (fr)
DE (2) DE102016116581A1 (fr)
EA (1) EA201990574A1 (fr)
WO (3) WO2017207698A1 (fr)

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Also Published As

Publication number Publication date
WO2017207699A1 (fr) 2017-12-07
EA201990574A1 (ru) 2019-09-30
DE102016120841A1 (de) 2018-03-01
DE102016116581A1 (de) 2018-03-01
BR112019003931A2 (pt) 2019-05-21
CN109792097B (zh) 2022-06-24
WO2017207697A1 (fr) 2017-12-07
WO2017207698A1 (fr) 2017-12-07
CN109792097A (zh) 2019-05-21
US20190198953A1 (en) 2019-06-27

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