WO2025252579A1 - Support de cellules de batterie avec une surveillance de température de cellules de batterie reçues et empilement d'une pluralité de supports de cellules de batterie - Google Patents

Support de cellules de batterie avec une surveillance de température de cellules de batterie reçues et empilement d'une pluralité de supports de cellules de batterie

Info

Publication number
WO2025252579A1
WO2025252579A1 PCT/EP2025/064863 EP2025064863W WO2025252579A1 WO 2025252579 A1 WO2025252579 A1 WO 2025252579A1 EP 2025064863 W EP2025064863 W EP 2025064863W WO 2025252579 A1 WO2025252579 A1 WO 2025252579A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery cell
carrier
cell carrier
bus
temperature
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
PCT/EP2025/064863
Other languages
German (de)
English (en)
Inventor
Aleksandar Duric
Ulrich Kuhn-Matysiak
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.)
Siemens Schweiz AG
Original Assignee
Siemens Schweiz AG
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 Siemens Schweiz AG filed Critical Siemens Schweiz AG
Publication of WO2025252579A1 publication Critical patent/WO2025252579A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature

Definitions

  • the invention relates to a first and a second battery cell carrier, each comprising a support base designed for the orderly accommodation of battery cells, preferably with a predetermined cell height, within a receiving volume and at predetermined receiving positions of the respective battery cell carrier or support base.
  • the first and second battery cell carriers comprise at least one side wall adjoining the support base, preferably a fully circumferential one, or at least one side strut adjoining the support base.
  • the battery cells considered are, in particular, rechargeable battery cells containing a liquid electrolyte, preferably lithium-ion or sodium-ion battery cells, i.e., secondary cells or accumulators.
  • the more technically common terms "battery” or “battery cell” are used synonymously with the technical terms “accumulator” or "accumulator cell.”
  • the invention further relates to a first and second stack, each consisting of at least one such first or second battery cell carrier stacked on top of the other, optionally with a plate-shaped end element for closing the second battery cell carrier stacked on top.
  • the invention relates to a system for the thermal monitoring of a plurality of battery cells, in particular a plurality of lithium-ion battery cells or sodium-ion battery cells, in a rack storage system.
  • the invention relates to a computer program for downloading onto a mobile communication device, in particular a smartphone or a tablet.
  • the battery cells can be cylindrical, prismatic (especially cuboid), or pouch cells. Up to one hundred such cylindrical cells can be housed in a battery cell tray for formatting and controlled aging at different temperatures. In technical terms, such a battery cell tray is also called a tray. A single tray can hold approximately 10 to 20 prismatic battery cells or approximately 20 to 50 pouch cells. Typically, four to six of these battery cell trays are stacked on top of each other and temporarily stored in a designated storage compartment. The battery cell trays can be housed in a rack or frame, or stacked directly on top of each other.
  • the storage containers can be wire mesh boxes, trays, or baskets. They typically have a length ranging from 80 cm to 120 cm, a width ranging from 50 cm to 80 cm, and a height ranging from 15 cm to 25 cm.
  • BMS battery management system
  • Today's rack storage systems especially for the temporary storage of the aforementioned stacked battery cell carriers, comprise a large number of racks or... Racking systems.
  • Automated high-bay warehouse systems are frequently used. These comprise numerous high-bay racking systems, such as six to eight rows, which in turn consist of multiple horizontal levels and vertical bays.
  • Such a racking system can include up to 30 levels or more and up to 50 bays or more. For example, with 20 levels and 50 bays, this results in 1000 storage locations per racking system.
  • the smoke gases and smoke aerosols produced in a developing fire can be detected by means of an aspirating smoke detector (ASD).
  • ASD aspirating smoke detector
  • Such aspirating smoke detectors are known, for example, from WO 2008/138877 A1, EP 1 634 261 A1, EP 1 811 478 A1 and DE 10 2021 204 398 A1 of the applicant.
  • the very high temperatures that occur during the onset of a fire can alternatively be detected using linear heat detectors that are sensitive to a change in resistance across an ohmic resistance line when exposed to excessive temperature.
  • a linear heat detector is known, for example, from WO 2009/115127 A1.
  • one object of the present invention is to provide a first and second battery cell carrier which enables the detection of an overtemperature in the battery cells accommodated therein.
  • a further object of the invention is to provide a first and second stack with stacked first and second battery cell carriers that enable the detection of an overtemperature in the battery cells included in the stack.
  • a further object of the present invention is to provide an improved first and second system for the thermal monitoring of a plurality of battery cells contained in such stacks in a rack storage system.
  • the object of the invention is solved by a (first) battery cell carrier in which a preferably one-piece circuit carrier, occupying a large part of the surface of the carrier base, is arranged between the carrier base and the battery cells to be accommodated.
  • a plurality of temperature sensors are arranged at the respective receiving positions in order to thermally contact a battery cell received on the opposite side to detect its housing temperature.
  • the temperature sensors are bus-compatible digital temperature sensors. These are connected to a bus interface located on the battery cell carrier for data transmission, enabling the output of each (recorded) temperature measurement and/or the output of each over-temperature warning.
  • the temperature sensors are thermistors, such as NTCs, each of which is connected to a central temperature sensor unit on the circuit board.
  • the central temperature sensor unit is connected to a bus interface located on the battery cell carrier for data transmission of the respective (detected) temperature reading and/or for issuing an over-temperature warning.
  • the particular advantage here lies in the fact that a technically simple, preferably flat, circuit carrier, i.e., a printed circuit board, a circuit board or a PCBs allow the housing temperature of each individual battery cell in the battery cell carrier to be monitored for an impermissible increase.
  • a technically simple, preferably flat, circuit carrier i.e., a printed circuit board, a circuit board or a PCBs allow the housing temperature of each individual battery cell in the battery cell carrier to be monitored for an impermissible increase.
  • the bus-capable digital temperature sensors applied to the circuit carrier according to the first alternative enable a simple linear interconnection of the temperature sensors with each other, while simultaneously allowing simple addressed digital recording of the respective housing temperatures.
  • the advantageous arrangement of the battery cells at the specified mounting position in the battery cell carrier makes it advantageously possible to directly assign the housing temperature to the battery cells using the temperature sensors.
  • the object of the invention is further achieved by a (second) battery cell carrier, wherein a preferably one-piece circuit carrier, occupying a large portion of the carrier base, is arranged on an outer surface of the carrier base facing away from the receiving volume of the battery cell carrier. Furthermore, according to the invention, a plurality of temperature sensors are arranged at predetermined receiving positions on a side of the circuit carrier facing away from the carrier base in order to thermally contact a battery cell mounted opposite it for measuring its housing temperature. The predetermined receiving positions correspond to those of a further battery cell carrier, provided directly below the battery cell carrier for stacking, which is essentially identical in construction with respect to the ordered receiving of battery cells.
  • the temperature sensors are connected to a bus interface located on the battery cell carrier for the purpose of outputting a respective temperature reading and/or an over-temperature warning.
  • the temperature readings and/or over-temperature warnings are assigned to battery cells that can be accommodated in the additional battery cell carrier stacked directly below the main battery cell carrier.
  • the temperature sensors are bus-compatible digital temperature sensors that are connected to a bus interface located on the battery cell carrier for data transmission of each (recorded) temperature reading and/or for issuing each over-temperature warning.
  • the temperature readings and/or over-temperature warnings are assigned to battery cells that can be accommodated in the additional battery cell carrier stacked directly below the main battery cell carrier.
  • the temperature sensors are analog temperature sensors, specifically thermistors. These are connected to a central temperature sensor unit on the circuit board.
  • the central temperature sensor unit is connected to a bus interface located on the battery cell carrier for data transmission of the respective temperature reading and/or over-temperature warning.
  • the temperature readings and/or over-temperature warnings are assigned to battery cells that can be accommodated in the additional battery cell carrier stacked directly below the main battery cell carrier.
  • the thermistors described in the previous embodiments are, in particular, NTCs (for Negative Temperature Coefficient Thermistors), i.e., so-called thermistors.
  • NTCs Negative Temperature Coefficient Thermistors
  • the thermistors can also be PTCs (for Positive Temperature Coefficient Thermistors) or temperature-dependent resistors.
  • the central temperature sensor unit can, in particular, have a plurality of temperature inputs that are multiplexed to an analog-to-digital converter or connected to a plurality of analog-to-digital converters for converting the acquired analog temperature measurement signals output by the thermistors into corresponding digital temperature values.
  • the central temperature sensor unit comprises one or more microcontrollers.
  • the aforementioned thermistors are two-terminal devices.
  • one of the two terminals is connected to a reference potential of the circuit carrier.
  • the other pole of each thermistor is then preferably connected via a conductor track on the circuit carrier to a temperature measurement input of the central temperature sensor mounting unit.
  • the particular advantage here lies in the fact that, using a technically simple circuit carrier — i.e., a printed circuit board (PCB) – the housing temperature of each individual battery cell in the battery cell carrier stacked directly below can be monitored for impermissible increases.
  • PCB printed circuit board
  • the bus-compatible digital temperature sensors applied to the circuit board enable simple line-based interconnection of the temperature sensors while simultaneously allowing for simple, addressable digital acquisition of the respective housing temperatures.
  • the orderly placement of the battery cells in their designated positions within the battery cell carrier stacked directly below advantageously enables housing temperature measurement that can be directly attributed to the individual battery cells.
  • the term "to a large extent” here refers to both previously described battery cell carriers, meaning that the area of the circuit carrier comprises at least 75%, preferably at least 85%, of the area of the carrier base. Recesses such as holes, openings, and slots within the circuit carrier are not included in the area calculation.
  • bus-enabled digital temperature sensors mentioned in the previously described battery cell carriers are cost-effective and have a small component size (e.g., 1.0 mm x 0.8 mm).
  • Examples of bus-enabled digital temperature sensors include the TMP104 or TMP114 from Texas Instruments, the TC77 from Microchip, or the LM71A from National Semiconductor. Because the temperature values acquired by such bus-enabled digital temperature sensors are internally converted into digital temperature readings and then output via a digital data interface or bus interface to a connected bus line, measurement distortion due to EMC coupling into a connected line or due to ohmic losses in the line itself is eliminated.
  • Such bus-enabled digital temperature sensors can incorporate circuit logic, such as an electronic switching device (finite state machine) in the form of a Moore or Mealy automaton, or a microcontroller, as well as a digital data interface.
  • circuit logic such as an electronic switching device (finite state machine) in the form of a Moore or Mealy automaton, or a microcontroller, as well as a digital data interface.
  • a microcontroller allows, for example, preliminary evaluations to be carried out in the temperature sensor, such as metrological calibration or prioritized output, e.g., an over-temperature warning when a previously defined, stored reference temperature is exceeded.
  • Thermally conductive contact or “direct thermally conductive contact” refers to a positive-locking connection between a temperature sensor and the housing of a battery cell. In the simplest case, one side or outer surface of the sensor is in contact with the housing. Temperature sensor directly attached to the respective housing of an opposing battery cell without forming an air gap.
  • the support base can be composed of several parts or segments that together form the entire support base.
  • the support base of the battery cell carrier has a plurality of distributed primary ventilation openings or slots, similar to a wire mesh box.
  • at least some of the primary ventilation openings or slots can also be located outside the support base's designated mounting positions for the battery cells. This allows for natural ventilation of the battery cells, advantageously preventing the formation of local "heat pockets" within the battery cell carrier and thus potentially distorting the measurement of the individual battery cell casing temperature.
  • Second ventilation openings or ventilation slots may also be incorporated or present in the circuit carrier outside the areas intended for thermal contact with the battery cells.
  • the first and second ventilation openings or ventilation slots are preferably arranged in alignment with each other, so that a continuous ventilation flow caused by thermals can be established through the first and second ventilation openings or ventilation slots in the battery cell carrier.
  • the circuit carrier can have at least one continuous recess adjacent to the respective temperature sensors, such that the respective temperature sensor remains connected to the rest of the circuit carrier for data transmission only via one, two, three, or four remaining webs, in order to largely thermally decouple the respective temperature sensor from the circuit carrier.
  • "Largely” here means that the heat input from the remaining circuit carrier to the respective temperature sensor is less than 20%, preferably less than 10%, compared to a respective temperature sensor that is arranged entirely on the circuit carrier without adjacent recesses.
  • the respective bus-compatible digital temperature sensor can be, for example, the TMP104 type from Texas Instruments, which includes a SMAART wire interface for connection to a serial bus line. It can also be the TMP111 type from Texas Instruments, which includes an I2C bus interface for connection to a serial I2C bus line.
  • the bus-enabled digital temperature sensors can each also include another digital sensor unit, such as an integrated optical smoke detection unit, such as the ADPD-188BI type from Analog Devices, a humidity sensor unit for measuring a relative humidity value, a gas sensor unit for measuring or detecting a concentration value of a hazardous gas, such as a CO sensor unit, a CO2 sensor unit, a hydrogen sensor unit and the like, or an air pressure sensor unit for measuring an air pressure value.
  • an integrated optical smoke detection unit such as the ADPD-188BI type from Analog Devices
  • a humidity sensor unit for measuring a relative humidity value
  • a gas sensor unit for measuring or detecting a concentration value of a hazardous gas
  • CO sensor unit such as a CO sensor unit, a CO2 sensor unit, a hydrogen sensor unit and the like
  • an air pressure sensor unit for measuring an air pressure value.
  • a bus-capable digital sensor of type SHT21 from the manufacturer Sensirion which includes a temperature sensor unit and a humidity sensor unit as well as a PC bus interface for connection to a serial l2c bus line, whereby this bus-capable digital sensor is set up to output a detected temperature value as well as a detected humidity value on the l2c bus line.
  • bus-compatible digital temperature sensors also includes extended bus-compatible digital temperature sensors that may incorporate additional digital sensor units, such as a humidity sensor, a gas sensor (e.g., CO, CO2, or H2), or an air pressure sensor.
  • additional digital sensor units such as a humidity sensor, a gas sensor (e.g., CO, CO2, or H2), or an air pressure sensor.
  • CO, CO2, or H2 a gas sensor
  • air pressure sensor e.g., CO, CO2, or H2
  • the sensor values acquired from these additional sensors can then be read by a bus master via the same bus line.
  • the bus-compatible digital temperature sensors can also be wireless sensors, such as those based on a Bluetooth, ZigBee or Thread standard.
  • the bus-enabled digital temperature sensors can be configured, as an alternative or additional measure to acquiring and outputting a temperature value, to automatically issue an over-temperature warning on the bus line when a predefined or specified reference temperature value is exceeded, for example, by outputting a priority identifier to the bus line.
  • a predefined or specified reference temperature value is exceeded, for example, by outputting a priority identifier to the bus line.
  • Two or more reference temperature values can be predefined for the temperature sensors to trigger an over-temperature warning. This allows for advantageous adaptation to an ongoing formatting or aging process at different ambient temperatures.
  • the reference temperature value to be set can be configured, for example, via a connection point connected to the battery cell carrier's bus line in a storage compartment of the battery cell carrier.
  • a central temperature sensor acquisition unit can be configured, in addition to acquiring and outputting a temperature value, to automatically issue an over-temperature warning on the bus line when a predefined or specified reference temperature value is exceeded, for example, by outputting a priority identifier to the bus line.
  • the bus-compatible digital temperature sensors typically comprise a sensor chip and, optionally, further electrical or electronic components for connecting the sensor chip to a bus line.
  • the sensor chip can be located on the side of a circuit carrier that faces the battery cells housed in the battery cell carrier for measuring their respective housing temperatures, or that is in contact with these battery cells.
  • the sensor chip of the respective bus-compatible digital temperature sensors can be located on the opposite side of the circuit carrier, i.e., away from the battery cells.
  • the respective sensor chip is preferably thermally connected to the opposite side of the circuit carrier, where a battery cell is then in contact for measuring its housing temperature, via one or more vias in the circuit carrier. This advantageously protects the sensitive sensor chip of the respective temperature sensors on the side of the circuit carrier facing away from the battery cells.
  • the bus-compatible digital temperature sensors are connected to the battery cell carrier's bus interface via a common, optionally multiplexed, bus line.
  • a common, optionally multiplexed, bus line is advantageous, for example, when a large number of battery cells, such as 64 to 256 cells, are intended for integration into a single battery cell carrier.
  • the address space can be expanded by using multiplexer modules or so-called “expanders.”
  • the addressing of all bus-enabled digital temperature sensors is possible. This makes it advantageously possible to address all bus-enabled digital temperature sensors on a single circuit carrier for recording their respective temperature measurement value and/or issuing a respective over-temperature warning via the bus line.
  • the battery cell carrier comprises at least one side wall adjoining the carrier base, preferably a fully circumferential one, or at least one side strut adjoining the carrier base.
  • the bus interface comprises a first electrical contact element, in particular a plug or a socket.
  • the first electrical contact element is arranged on the side wall or the carrier base of the battery cell carrier, preferably pointing away from it.
  • a second electrical contact element structurally and electromechanically matched to it, can then be easily connected to the first electrical contact element as the counterpart of a connection point.
  • the temperature values and/or over-temperature warnings detected by the temperature sensors can then be received via the connection point and forwarded to a higher-level control center, such as a monitoring station, for further processing.
  • the over-temperature warnings issued by the central temperature sensor acquisition units can also be received via the connection point and forwarded to a higher-level control center.
  • a connection point is preferably mounted on a rear or side wall of a storage compartment provided for storing the battery cell carrier.
  • the bus interface can, for example, be mounted on an edge strip of the circuit carrier, soldered there, and electrically connected to the individual bus lines.
  • the bus interface can also be arranged on at least one side wall adjacent to the base of the carrier, preferably a fully circumferential one, or on a side strut adjacent to the base of the carrier, and have a connector at the end of its connecting cable that can be plugged onto or into a structurally compatible mating connector on the circuit carrier. The mating connector is then electrically connected to the individual bus lines.
  • the battery cell carrier comprises at least one side wall adjoining the carrier base, preferably a fully circumferential one, or at least one side strut adjoining the carrier base.
  • the bus interface comprises a first electrical contact element and, as a counterpart, a second electrical contact element.
  • the first electrical contact element is preferably a plug or
  • the bus interface consists of a socket and a second electrical contact part, either a socket or a plug. It is therefore a two-part interface.
  • the first and/or second electrical contact element is arranged on the side wall adjacent to the base of the battery, preferably a fully circumferential one, or on a side strut adjacent to the base of the battery.
  • a side strut is arranged at each corner of the base of the battery, and optionally one or more side struts are arranged in between.
  • the dimensions of the side wall and the struts, together with the height of the base of the battery, determine the overall height of the first and second battery cell carriers and thus the stacking height for such a battery cell carrier.
  • the first and second electrical contact points are connected in parallel.
  • the bus line is thus connected in parallel to both the first and second electrical contact points, forming a spur line.
  • the first and second electrical contact points are spaced apart and aligned relative to each other in the stacking direction to allow for the formation of a common bus interface.
  • the two electrical contact points are spaced and arranged such that the first electrical contact point can be connected to a second electrical contact point of a substantially identical battery cell carrier stacked directly below it, and the second electrical contact point can be connected to a first electrical contact point of a substantially identical battery cell carrier stacked directly above it.
  • the particular advantage lies in the fact that by stacking identical or essentially identical battery cell carriers on top of each other, a single bus line is formed from a circuit perspective. All temperature sensors, possibly via the central temperature sensor mounting units, are accessible via this bus line on the circuit carriers of the stacked battery cell carriers. This can preferably be achieved, since it always occurs at the same stacking position, either via the (lower) first electrical contact point of the bottommost battery cell carrier as the first line end of the common bus interface, or via the (upper) second electrical contact point of the topmost battery cell carrier as the second line end of the common bus interface.
  • a bus master e.g., in the form of a microcontroller, can be positioned on the respective circuit board between the bus line on the circuit board and the bus interface.
  • the bus master acting as a battery cell carrier controller or a tray controller, can, on the one hand, organize and control the data transmission on the connected bus line (implemented as a spur line) with the bus-enabled digital temperature sensors connected there, and on the other hand, function as a bus participant on the common bus line.
  • the bus master can also be configured, for example, to translate the bus systems and their bus protocols, such as translating an I2C bus system with the connected bus-enabled digital temperature sensors to a CAN bus on the side of the common bus interface.
  • Such a bus master can also be integrated into a microcontroller, e.g., with a central temperature sensor acquisition unit.
  • the temperature sensors are bus-capable digital temperature sensors, which are connected to the bus interface of the battery cell carrier via a common ring bus line.
  • ring bus line refers to a bus line of a battery cell carrier that is looped through in a ring shape. These battery cell carriers are then connected in series in a stack of battery cell carriers, linked to the common ring bus line.
  • the bus interface comprises a first contact element and a second electrical contact element as its counterpart.
  • the first electrical contact element is electrically connected to the first end of the ring bus line
  • the second electrical contact element is electrically connected to the second end of the ring bus line.
  • the first and second electrical contact elements are spaced apart and aligned with each other in the stacking direction to allow the loop-through of the ring bus line to a ring bus line of a battery cell carrier of essentially identical or identical construction directly below or above it, thus potentially forming a common bus interface.
  • the two electrical contacting parts are spaced apart and arranged in such a way that a first electrical contacting part can be contacted with a second electrical contacting part of a battery cell carrier stacked directly below it, and that a second electrical contacting part can be contacted with a first electrical contacting part of a battery cell carrier stacked directly above it.
  • the particular advantage lies in the fact that by stacking identical or essentially identical battery cell carriers on top of each other, a single ring bus line is formed from a circuit engineering perspective. All bus-compatible digital temperature sensors on the circuit carriers of the stacked battery cell carriers are accessible via this line. Otherwise, this embodiment is identical to the previous embodiment. Up to several hundred or even several thousand such temperature sensors can be connected to the common bus line or ring bus line.
  • the counterpart or connector part of the bus interface of a battery cell carrier can, for example, be mounted on an edge strip of the circuit carrier, soldered there, and electrically connected to the individual bus lines.
  • the other part of the bus interface of a battery cell carrier i.e., the connector part or the counterpart, can then be electrically contacted directly with the individual bus lines on the circuit carrier via a connecting line, such as solder pads.
  • the other part of the bus interface can have a connector at the end of its connecting line that can be plugged onto or into a structurally compatible connector counterpart on the circuit carrier.
  • the connector counterpart is electrically connected to the individual bus lines.
  • an elastic, thermally conductive thermal pad is arranged on at least one temperature sensor mounted on the circuit carrier, and preferably on all temperature sensors, in order to directly and thermally contact an opposing battery cell for measuring its respective housing temperature. This enables a positive-locking and at the same time highly thermally conductive contact between a temperature sensor and an opposing battery cell. This allows for fast and very accurate measurement of the housing temperature of an adjacent battery cell.
  • Such a thermal pad has, in particular, a thermal conductivity of at least
  • the thermal pad has a thickness of 0.5 mm to 5 mm.
  • the thermal pad is preferably made of an electrically insulating material.
  • such a thermal pad has a Shore A hardness of 10 to 30, particularly 15 to 25.
  • such a thermal pad is made of a plastic, especially made from a polymer, and preferably from a silicone.
  • Thermally conductive materials especially those designed to bridge air gaps and improve thermal conductivity, are available, for example, from the manufacturer Henkel in the so-called GAP-PAD portfolio.
  • the first and second battery cell carriers according to the invention have a radio device arranged on the battery cell carrier.
  • the radio device comprises a bus connection for wired connection to the bus interface of the battery cell carrier.
  • the bus connection of the radio device is connected via a connecting cable with an attached connector to a first electrical contact point or to the counterpart of the bus interface of the battery cell carrier.
  • the radio device is configured for data communication with a counterpart, in particular with a radio-based connection point, which is preferably arranged or mounted in a respective storage compartment of a rack storage system.
  • the data transmission can be based, for example, on a Bluetooth, ZigBee, Thread, NFC, or WLAN standard.
  • this connection point is not configured to transmit significant electrical energy or power to the radio device on the battery cell carrier according to the invention via an inductively coupled path.
  • the first and second battery cell carriers each have a radio communication device arranged on the battery cell carrier.
  • the radio communication device comprises a bus interface for wired connection to the bus interface of the battery cell carrier.
  • the bus interface of the radio communication device is connected via a connecting cable with a connector to a first electrical contact point or to the counterpart of the bus interface of the battery cell carrier.
  • the radio communication device is configured for possible data communication with a remote station via inductive coupling and, additionally, for possible reception of electrical energy from the remote station via inductive coupling, in particular with a radio-based, inductively coupled connection point.
  • the radio communication device preferably includes an electrical energy storage device for buffering the inductively coupled electrical energy.
  • the radio device This enables not only contactless data transmission between the radio device on the battery cell carrier and the radio-based connection point, but also electrical energy transfer from the connection point to the radio device on the battery cell carrier via an air interface in the form of magnetic field energy.
  • the electrical energy then coupled out in the radio device serves to power the radio device itself, as well as the bus-compatible digital temperature sensors and, if applicable, other electrical and electronic components on the circuit board of the respective battery cell carrier, which are electrically connected to the bus interface or the common bus interface via the radio device's connection cable.
  • the data and energy transfer via inductive coupling can be based, for example, on an NFC standard, an ISO/IEC 15693 standard, or an ISO/IEC 14443 standard.
  • the object of the present invention is further achieved by a (first) stack of at least two stacked (first) battery cell carriers.
  • the battery cell carriers are designed for the orderly accommodation of battery cells with a predetermined cell height.
  • the battery cell carriers preferably all have the same stacking height.
  • the respective circuit carriers are arranged on the respective battery cell carrier in such a way that, after the battery cell carriers are stacked on top of each other, they, with their temperature sensors arranged thereon, make direct thermal contact with the respective opposing battery cells.
  • the object of the invention is further achieved by a (second) stack consisting of at least one, preferably at least two, stacked (second) battery cell carriers and a preferably plate-shaped end element for terminating the topmost stacked battery cell carrier.
  • the battery cell carriers, or the at least one battery cell carrier have the same stack height.
  • the respective circuit carriers are arranged on the respective battery cell carrier in such a way that, after the battery cell carriers are stacked, they, with their temperature sensors arranged thereon, make direct thermal contact with the respective opposing battery cells.
  • the end element has a preferably one-piece circuit carrier on an outer surface opposite the battery cell carrier stacked directly below it, which occupies a large part of the surface of the end element and is thus aligned with the predetermined cell height of the battery cells of the one below it.
  • the battery cell carrier is arranged in such a way that its temperature sensors make direct thermal contact with the opposing battery cells after the underlying battery cell carrier has been closed.
  • the plate-shaped end element serves to compensate for the lack of monitoring of the battery cell housing temperatures in the topmost stacked battery cell carrier.
  • the battery cell carriers are also designed in such a way that their respective bases and surrounding side walls or struts interlock precisely when stacked.
  • stacking the battery cell carriers in the two stacks advantageously creates a single bus line from a circuit perspective, or, in the case of bus-enabled digital temperature sensors, a single ring bus line. All temperature sensors on the circuit carriers of the stacked battery cell carriers are then accessible via this connection. This can be achieved via the (upper) second electrical contact point of the topmost stacked battery cell carrier, which serves as the second end of the common bus line, or, in the case of bus-enabled digital temperature sensors, as the common ring bus line. Alternatively, this can be achieved via the (lower) first electrical contact point of the bottom stacked battery cell carrier, which serves as the first end of the common bus line, or, in the case of bus-enabled digital temperature sensors, as the common ring bus line.
  • a connection point in a storage compartment serving as the counterpart for data communication with the temperature sensors, can preferably be located at the same stack position.
  • the (lower) first electrical contact part of the bottommost stacked first or second battery cell carrier is located as a common bus interface to the Connecting the connection point to the (lower) first electrical contact point of the common bus line or, in the case of bus-compatible digital temperature sensors, to the common ring bus line.
  • the connection point is located in the storage compartment, after the first or second stack has been inserted, in close proximity to the (lower) first electrical contact point of the bottommost battery cell carrier.
  • the connection point in each storage compartment includes a storage compartment radio device.
  • This device is configured for data communication with a radio device of a stored stack via inductive coupling and for transmitting electrical energy to the radio device via inductive coupling.
  • the radio device of each stored stack comprises a bus interface for connecting to the common bus interface of the bottommost stacked battery cell carrier and preferably an electrical energy storage device for buffering the inductively coupled electrical energy.
  • a (first) system for the thermal monitoring of a plurality of battery cells, in particular a plurality of lithium-ion battery cells or sodium-ion battery cells, in a rack storage system comprises a plurality of storage compartments arranged in levels and bays. The latter are provided for storing such first and second stacks, each with battery cell carriers stacked on top of each other.
  • the system has, in at least some of the storage compartments, preferably in all storage compartments, one or a single connection point, which is provided for data communication with a common bus interface formed by the stacking of such battery cell carriers of the respective stored stack.
  • the common bus interface is connected, via circuitry, to the looped bus line or, in the case of bus-compatible digital temperature sensors, to the looped ring bus line of the first or second stack of first or second battery cell carriers.
  • the system is designed to receive the temperature readings from the respective temperature sensors of the stacked battery cell carriers of a stack, as measured by the connection point and the temperature of each sensor. to output the originating temperature readings and/or over-temperature warnings, possibly together with a respective storage compartment identifier and/or stacking level identifier, to a higher control center or to a so-called management station.
  • a combination of shelf bay and shelf level can also be used to ensure the unambiguous assignment of a storage compartment within a racking system.
  • a storage compartment identifier also uniquely encodes the position of the storage compartment within the racking system.
  • the storage compartment identifier assigned to a respective connection point can be stored electronically in an electronic control unit of the respective connection point, such as a multi-digit number that encodes the level and the field in the rack storage system.
  • the stack level identifier assigned to each battery cell carrier can be determined, for example, by the electronic control unit (microcontroller) of a connected terminal.
  • the control unit can be configured to divide the bus address received from the common bus interface of the first or second stack by a queryed or reporting temperature sensor by a predefined, equal maximum number of battery cells per battery cell carrier. The integer quotient can then be assigned a stack level identifier.
  • the received, typically sequential, bus address is assigned to a respective temperature sensor, which outputs a measured temperature value and/or an over-temperature warning at the common bus interface. For example, if a battery cell carrier comprises 100 mounting positions for battery cells, the respective temperature sensors at these mounting positions can be assigned bus addresses from 0 to 99.
  • the bus addresses can be assigned continuously across all temperature sensors in the first or second stack.
  • the sequentially switched supply voltage is provided from the connection point for the electrical supply of the temperature sensors.
  • a bus address assigned to a temperature sensor can be directly assigned to the installation position within the battery cell carrier. This means that a temperature sensor with the assigned bus address 5 can be directly assigned to recording location 5 on the battery cell carrier.
  • connection point in the respective storage compartment with the common bus interface of the first or second stack can be made, for example, via a connecting cable.
  • Such a system according to the invention can also be referred to as a thermal monitoring system or a fire alarm system.
  • the particular advantage of the (first) system according to the invention lies in the fact that all stacked battery cell carriers of a first or second stack can be thermally monitored via a single bus interface on the first or second stack.
  • the connection point in each storage compartment has a storage compartment radio device, wherein the storage compartment radio device is configured for possible data communication with a radio device of a stored stack via inductive coupling and for possible transmission of electrical energy to the radio device, also via inductive coupling.
  • the radio device of each stored stack comprises a bus interface for connection to the common bus interface of the bottommost stacked battery cell carrier and preferably an electrical energy storage device for buffering the inductively coupled electrical energy.
  • the second system is designed as a rack storage system.
  • This rack storage system comprises a multitude of storage compartments arranged in levels and bays.
  • the storage compartments are intended for storing first and second stacks according to the invention, each containing stacked battery cell carriers.
  • the second system has connection points in at least some of the storage compartments, each of which is designed for signal and/or data connection to a bus interface of a battery cell carrier within a stored stack.
  • the second system is configured to output the temperature readings and/or over-temperature warnings received from the temperature sensors of a battery cell carrier at the respective connection points in each storage compartment, optionally together with a storage compartment identifier and/or stack level identifier, to a higher-level control center.
  • the storage compartment identifier assigned to the connection points in a storage compartment can be stored electronically, for example, in an electronic control unit of the respective connection point or in a common electronic control unit for all connection points, such as a multi-digit number that encodes the level and the field in the rack storage system.
  • the stack level identifier assigned to the connection points in a storage compartment can be stored electronically in an electronic control unit of the respective connection point according to the attached stack position.
  • control unit is a fire alarm control panel.
  • the control unit can also be referred to as a panel.
  • the control unit is typically connected to the respective connection points of the rack storage system via one or more wired rack buses, in particular via one or more wired fire alarm bus systems.
  • the control unit is further connected to the higher-level control center for forwarding the received temperature readings and/or over-temperature warnings, along with a respective storage compartment identifier and/or a respective stack level identifier.
  • a computer program for downloading onto a mobile communication device, in particular a smartphone or a tablet.
  • a computer program is also referred to as an app and is typically downloaded from a so-called "app store”.
  • the computer program comprises instructions that are executed by a microprocessor when the computer program is run. instruct the microprocessor of the mobile communication device to perform the following steps:
  • FIG 1 shows a sectional view through an exemplary first battery cell carrier according to the invention
  • FIG 2 shows a top view of the exemplary first battery cell carrier according to FIG 1,
  • FIG 3 shows a sectional view through an exemplary second battery cell carrier according to the invention
  • FIG 4 shows a top view of the exemplary second battery cell carrier according to FIG 3
  • FIG 5 shows a sectional view through an exemplary first stack of four first battery cell carriers according to the invention
  • FIG 6 shows a sectional view through an exemplary second stack of four second battery cell carriers and termination element according to the invention.
  • FIG 7 shows a circuit diagram of a bus line connected in parallel in an exemplary stack with a common bus interface according to the invention
  • FIG 8 shows a circuit diagram of a ring bus line connected in an exemplary stack with a common bus interface according to the invention
  • FIG 9 shows an inductive coupling of a bus interface to a connection point according to the invention
  • FIG 10 shows a radio connection of a bus interface to a connection point according to the invention
  • FIG 11 shows an example of a thermal monitoring system for a rack storage system according to the invention.
  • FIG 12 shows another example of a thermal monitoring system for a rack storage system according to the invention.
  • FIG. 1 shows a sectional view through an exemplary first battery cell carrier S according to the invention
  • FIG. 2 shows a corresponding top view of this battery cell carrier S.
  • the battery cell carrier S shown which is also referred to as a tray, comprises a carrying basket or a wire mesh box G with a side wall W that completely surrounds the carrier and abuts a support base B of the battery cell carrier S. Instead of a surrounding side wall W, side struts ST can also abut the support base B.
  • H denotes a support height of the battery cell carrier S.
  • a maximum of 55 cylindrical battery cells BAT with a uniform cell height BH can be accommodated at predetermined receiving positions P1-Pn of the battery cell carrier S within a defined receiving volume AV of the battery cell carrier S.
  • a one-piece circuit carrier PCB which covers a large portion of the surface of the base B, is arranged on an inner surface IS of the carrying basket G or the wire mesh box between the base B and the battery cells BAT to be accommodated.
  • AS denotes an outer surface of the carrying basket G or the wire mesh box.
  • a plurality of bus-compatible digital temperature sensors TS1-TSn are arranged at their respective mounting positions P1-Pn to thermally contact a battery cell BAT mounted opposite, enabling the measurement of its housing temperature.
  • an elastic, thermally conductive thermal pad WP is arranged on each of the temperature sensors TS1-TSn.
  • the thermal pads WP shown have a thermal conductivity of at least 1 W/m K and a thickness ranging from 0.5 to 5 mm.
  • the thermal pads WP show an exemplary square profile with a maximum edge length of 2 cm, preferably 1 cm.
  • the bus-capable digital temperature sensors TS1-TSn shown are connected to a bus interface AN arranged on the battery cell carrier S shown, for the purpose of outputting a respective temperature measurement T1-Tn and/or an over-temperature warning AL.
  • L denotes a pin or socket connector which is connected on one side to the conductor tracks of a bus line BUS and on the other side to the bus interface AN via a connecting line V.
  • the conductor tracks electrically connect the temperature sensors TS1-TSn to each other.
  • a bus master (shown as a dashed line in FIG.
  • the bus interface AN is typically designed as a plug or socket and is intended for electrical and/or data connection to a connection point in a storage compartment of a rack storage system.
  • the support base B is formed from a single piece and features a multitude of distributed primary ventilation openings OF. This allows for natural ventilation of the battery cells BAT. The formation of local "heat pockets" within the battery cell carrier S and any potential distortion in the measurement of the housing temperature of the individual battery cells BAT are thus avoided.
  • the primary ventilation openings OF shown are located at least outside the mounting positions P1-Pn of the support base B intended for holding the battery cells BAT.
  • FIG. 2 further shows a plurality of second ventilation openings BO with an exemplary circular cross-section. These are preferably also located outside the areas P1-Pn intended for thermal contact with the battery cells BAT, or are already recessed. It is particularly advantageous if the first and second ventilation openings OF, BO are arranged in alignment with each other, so that a continuous, thermally induced ventilation flow can be established through the first and second ventilation openings OF, BO in the battery cell carrier S.
  • the abbreviation AH also denotes spacers, such as the sleeve shown here. These are inserted into geometrically aligned recesses AU in the PCB circuit carrier and serve as spacers between the battery cells BAT and at their designated mounting positions P1-Pn. The alignment of the recesses AU with the inner cross-section of the spacers AH ensures continuous ventilation to the battery cell carrier S above.
  • FIG 3 shows a sectional view through an exemplary second battery cell carrier R according to the invention and FIG 4 shows a corresponding top view of this battery cell carrier R.
  • the circuit carrier PCB which occupies a large part of the surface of the support base B, is now arranged on an outer surface AS of the support base B facing away from the receiving volume AV of the battery cell carrier R.
  • the circuit carrier PCB is thus located below the support base B of the battery cell carrier R.
  • a plurality of bus-capable digital temperature sensors TS1-TSn are now arranged on a side of the circuit carrier PCB facing away from the support base B at the respective predefined receiving positions P1-Pn in order to thermally contact a battery cell BAT mounted opposite it for measuring its housing temperature.
  • the predefined receiving positions P1-Pn correspond to those of another battery cell carrier R, identical in construction with respect to the ordered receiving of battery cells BAT, which is provided directly below the battery cell carrier R for stacking.
  • the temperature sensors TS1-TSn are again connected to a bus interface AN arranged on the second battery cell carrier R for data transmission, in order to output a respective temperature measurement value T1-Tn and/or to output a respective over-temperature warning AL.
  • the temperature measurement values T1-Tn and/or the Over-temperature warnings AL battery cells BAT are assigned, which can be received in this further battery cell carrier R stacked directly below the battery cell carrier R.
  • the particular advantage lies in the fact that, by means of a circuit carrier, the casing temperature of each individual battery cell in the battery cell carrier stacked directly below can be monitored for an impermissible increase. Because the casing temperature is measured at the top of the battery cells, a more precise and very fast temperature measurement is possible, since in the case of a damaged or "continued" battery cell, the heat generated inside rises due to thermal convection.
  • FIGS 2 and 4 show an optional bus master (TBC) depicted with a dashed line, positioned between the BUS bus line on the PCB and the bus interface AN.
  • the bus master acting as a battery cell carrier controller or "tray controller,” can, on the one hand, organize and control data transmission on the connected BUS bus line (implemented as a spur line) with the bus-enabled digital temperature sensors TS1-TSn connected there, and on the other hand, function as a bus participant on the common BUS bus line.
  • the bus master can also be configured, for example, to translate bus systems and their bus protocols, such as translating an I2C bus system with the connected bus-enabled digital temperature sensors TS1-TSn to a CAN bus on the side of the common bus interface AN'.
  • a bus master TBC
  • TBC bus master
  • FIG. 5 shows a sectional view through an exemplary first stack SP, SPS consisting of four first battery cell carriers S1-S4 according to the invention.
  • the topmost first battery cell carrier S4 is shown slightly spaced from the battery cell carrier S3 below it.
  • the battery cell carriers S1-S4 shown all have the same stacking height H.
  • the respective circuit carriers PCB are arranged on or in the respective battery cell carrier S1-S4 in such a way that, after the battery cell carriers S1-S4 are stacked on top of each other, these circuit carriers PCB, with their temperature sensors TS1-TSn arranged thereon, (automatically) make thermally conductive contact with the respective opposing battery cells BAT.
  • SE1-SE4 denotes the corresponding stacking levels of the stacked battery cell carriers S1-S4.
  • elastic thermal pads WP are arranged between the respective temperature sensors TS1-TSn and the batteries BAT.
  • the bus interfaces AN shown in FIG. 5 each comprise a first electrical contact element US in the form of a plug and a second electrical contact element OS in the form of a socket.
  • the first and second electrical contact elements US and OS of each battery cell carrier S1-S4 are connected in parallel.
  • the bus line BUS of each battery cell carrier S1-S4 is thus connected in parallel to each first electrical contact element US and each second electrical contact element OS, forming a stub line.
  • first and second electrical contact elements US and OS are also spaced apart and aligned relative to each other in the stacking direction to potentially form a common bus interface AN'.
  • first and second electrical contacting parts US, OS are spaced apart and arranged relative to each other in such a way that, on the one hand, a first electrical contacting part US can be contacted with a second electrical contacting part OS of a directly stacked, essentially identical battery cell carrier S, and that, on the other hand, a second electrical contacting part OS can be contacted with a first electrical contacting part US of a directly stacked, essentially identical battery cell carrier S.
  • the data acquisition of all temperature sensors TP1-TPn connected to the bus line BUS can preferably be carried out, since at always the same stacking position SE1-SE4, via the (lower) first electrical contacting part US of the bottommost stacked battery cell carrier S1 as the first line end of the common bus interface AN’ or via the (upper) second electrical contacting part OS of the topmost stacked battery cell carrier S4 as the second line end of the common bus interface AN’.
  • FIG 6 shows a sectional view through an exemplary second stack SPR consisting of four second battery cell carriers R1-R4 and a termination element AR according to the invention.
  • the plate-shaped termination element AR is provided for terminating the topmost stacked battery cell carrier R4.
  • the termination element AR is arranged slightly spaced from the topmost stacked second battery cell carrier R4.
  • the termination element AR shown has a circuit carrier PCB on an outer surface AS opposite the battery cell carrier R4 stacked directly below it. In the installed state, the PCB would be arranged to match the predetermined cell height BH (see FIG 2) of the battery cells BAT of the underlying battery cell carrier R4 such that their temperature sensors TS1-TSn can detect the respective The opposing battery cells BAT are thermally contacted.
  • elastic thermal pads WP are positioned between the respective temperature sensors TS1-TSn and the batteries BAT.
  • UK refers to a circumferential collar or ridge on the underside of the plate-shaped end element AR as well as on the underside of the second battery cell carriers R1-R4. These serve to ensure their flush and guided interlocking "from above” and to mechanically protect the temperature sensors TS1-TSn when an end element AR and the second battery cell carriers R1-R4 are placed down.
  • FIG. 7 shows a circuit diagram of a bus line BUS connected in parallel in an exemplary stack SP with a common bus interface AN' according to the invention.
  • bus-capable digital temperature sensors TS1-TSn are connected to an I2C bus as an example bus line BUS.
  • M denotes a first reference potential, in particular a ground potential, VDD a second reference potential, in particular a positive DC supply voltage, SGL a digital clock signal, and SDA a digital data signal of the I2C bus BUS for reading digital temperature measurements TSP and/or a corresponding over-temperature warning AL.
  • a tray controller TBC arranged on the circuit carrier PCB serves as the I2C bus master.
  • the tray controller TBC is also configured to output the acquired digital temperature measurements TSP and/or the corresponding over-temperature warning AL to the common bus interface AN'.
  • the tray controller TBC is configured, as an example, to switch the positive supply voltage VDD through to the subsequent tray controller TBC by means of an electronic switching element, in order to sequentially connect the bus line BUS to the subsequent tray controller TBC, after the address assignment by the tray controller TBC for the bus-enabled digital temperature sensors TS1-TS connected to it has been completed.
  • an electronic switching element can also be integrated into the tray controller TBC.
  • FIG. 8 shows a circuit diagram of a ring bus line BUS with a common bus interface AN' connected in an exemplary stack SP according to the invention.
  • all bus-capable digital temperature sensors TS1-TSn are automatically connected in series to form a ring bus line BUS by stacking all battery cell carriers S1, S2; R1, R2 on top of each other.
  • the bus line BUS is in turn a bus line of an I2C bus or bus system. Since, in this case, the bus master is provided as the counterpart to the common bus interface AN' via a connection point AP in a storage compartment LF of a rack storage system RL (see FIG. 11), the sequential connection of the ring bus line BUS is achieved by a switch-on delay EV of each battery cell carrier S1, S2; R1, R2.
  • FIG 9 shows an inductive coupling of a common bus interface AN’ of a stack S with battery cell carriers S1, S2 to a connection point AP in a storage compartment LF of a rack storage system RL according to the invention.
  • a radio device FE is attached to the battery cell carrier S1 shown at the bottom, which includes a bus connection BA for connecting the bus connection BA to the common bus interface AN on the battery cell carrier S1.
  • the bus connection BA itself is connected via a connecting cable AK together with a connector to the first electrical contacting part US of the common bus interface AN’ of the battery cell carrier S1.
  • the radio device FE is configured for possible data communication with a counterpart AP, here the connection point AP in the storage compartment LF, via an inductively coupled path, and for possible reception of electrical energy from the counterpart AP, also via an inductively coupled path.
  • the connection point AP shown is thus a radio-based, inductively coupled connection point AP with advantageously contactless energy and data transmission.
  • the temperature measurements TSP of the battery cells BAT in the stack S and/or of over-temperature warnings AL received from the connection point AP are then, if necessary, forwarded together with a storage compartment identifier FK determined by the connection point AP via a connected wired shelf bus RB of the inventive system BMA for thermal monitoring of a large number of battery cells BAT to a higher central unit Z of the monitoring system BMA for further processing.
  • the radio device FE has an electrical energy storage device ES, in particular a battery, for buffering the inductively coupled electrical energy.
  • the buffered electrical energy can then advantageously be used for the electrical power supply for the sequential connection of the bus line BUS and for the automatic address assignment via All connected bus-compatible digital temperature sensors TS1-TSn can be used during the assembly of a stack of SP from battery cell carriers S. This allows the stack of SP to be immediately stored in a designated storage compartment LF with connection point AP after assembly.
  • the storage of a stack of SP should be carried out in such a way that the radio interface FE of the lowest battery cell carrier S1 of the stored stack of SP is positioned opposite the radio-based, inductively coupled connection point AP in the storage compartment LF via an air interface of a maximum of 10 cm, and in particular a maximum of 1 cm.
  • FIG 10 shows a wireless connection of a bus interface AN, AN’ to a connection point AP according to the invention.
  • data transmission preferably takes place based on a WLAN or Bluetooth standard and consequently not via inductively coupled paths.
  • the energy storage device ES serves only to supply power for the wireless transmission.
  • FIG 11 shows an example of a thermal monitoring system (BMA) for a rack storage system (RL) according to the invention, in particular for detecting and locating one or more overheated battery cells (BAT) stored in the rack storage system (RL).
  • a thermal monitoring system (BMA) is a fire alarm system proven for such purposes.
  • the rack storage system (RL) shown has, by way of example, four levels (E), numbered from bottom to top (E1 to E4).
  • the exemplary rack storage system (RL) has three bays (F) or columns, numbered from F1 to F3.
  • Stacks (SP) of battery cell carriers (S1-S4; R1-R4) with different stack heights are stored in the storage compartments (LF) shown.
  • a fire event with at least one defective and overheated battery is represented, by way of example, by a flame symbol.
  • NF designates a storage compartment LF that is intended for alternative storage and does not need to be monitored by the fire alarm system (BMA).
  • RW designates a rear wall of the storage compartments LF.
  • the storage compartments LF can also be loaded from both sides of the rack with a stack SP containing battery cell carriers S, R. In this case, two storage compartment numbers can be assigned to the storage compartments LF.
  • the storage bin number consists of a combination of the level position and the field position, such as the digit pair 03-20 for level 3 and bin 20.
  • the assignment The configuration of a storage compartment from a level position and a field position can also be done using a table, which is stored electronically, for example, in the higher-level central unit.
  • the BMA monitoring system has a connection point AP in each of the storage compartments LF.
  • This connection point is preferably designed for automatic signal and/or data connection to a common bus interface AN' formed by the stacking of the battery cell carriers S, R of the respective stored stack SP.
  • the BMA monitoring system is configured to output the temperature readings TSP and/or overtemperature warnings AL received from each connection point AP, originating from the respective temperature sensors TS of the stacked battery cell carriers S, R of a stack SP, optionally together with a respective storage compartment identifier LK and/or stack level identifier TK, to a higher-level control center MS.
  • the respective storage compartment identifier LK can, for example, be stored in an electronic memory of an electronic processing unit of each connection point AP.
  • the depicted monitoring system (BMA) comprises a central unit (Z) and, in the case of a fire alarm system (BMA), a fire alarm control panel (Z).
  • the latter is connected to the respective connection points (AP) of the racking system (RS) via one or more wired rack buses (RB), in particular via one or more wired fire alarm buses.
  • the central unit (Z) is connected to the aforementioned higher-level control center (MS) for forwarding the received temperature readings (TSP) and/or over-temperature warnings (AL), along with a respective storage compartment identifier (LK) and/or a stacking level identifier (TK).
  • control center MS is advantageously aware not only of the recorded battery temperature of a "thermally leaking" battery cell BAT, but also of its exact location within the rack storage system RL. Measures can then be taken immediately on-site to remove the relevant stack SP, including the battery cell carrier S, R containing the defective battery cell BAT, from storage compartment LF before a fire originating from the defective battery cell BAT can spread to neighboring battery cells BAT.
  • the battery cell carrier S, R in question can be advantageously isolated from the others and, in the best case, the defective battery cell BAT can be removed at the known mounting position P1-Pn in the battery cell carrier S, R.
  • the location is determined by the shelf number reported by the central unit Z based on a shelf identifier RK in the case of several rack storage systems RL connected to the central unit Z, by the reported storage compartment number based on a storage compartment identifier LK in the relevant rack storage system RL, by the reported stack position of the relevant battery cell carrier S, R based on the stack level or tray identifier TK in the stored stack SP, and by the determined receiving position P1-Pn of the defective battery cell BAT in the relevant battery cell carrier S, R based on the previously assigned address of a respective connected temperature sensor TS1-TSn at the correspondingly assigned receiving positions P1-Pn.
  • the wired shelf bus RB runs in a linear and meandering pattern along the storage compartments LF of the rack storage system RL.
  • a connection point AP in the respective storage compartment LF is a bus participant on a common detector line of a fire alarm bus RB in the case of a fire alarm system (FAS).
  • FAS fire alarm system
  • the central unit Z in FIG 11 can also be configured to forward the data RK, FK, TK, T1-Tn, AL reported by the connection points AP to a cloud infrastructure CLOUD.
  • the latter can provide a cloud service application CSA for further processing and evaluation of the reported data RK, FK, TK, T1-Tn, AL.
  • MEM denotes working memory provided in the cloud infrastructure CLOUD
  • DB denotes a database provided by the cloud infrastructure CLOUD for storing the received data RK, FK, TK, T1-Tn, AL.
  • IP2 denotes a (second) IP data connection between a gateway GW of central unit Z and the cloud infrastructure CLOUD.
  • a mobile communication device (MOB) is shown, which is connected to the central unit Z via a (first) IP data connection IP1 or to the cloud infrastructure CLOUD via a (third) IP data connection IP3 to receive the aforementioned data RK, FK, TK, T1-Tn, AL and display it to a user on a DSP display of the MOB.
  • the MOB is preferably a smartphone or a tablet.
  • the two IP data connections IP1 and IP2 can be based on a WLAN, GSM, or Bluetooth standard.
  • an over-temperature warning AL is displayed to a user on the MOB's DSP display.
  • This warning originates from an overheated battery cell BAT located in shelf 4, in field 1, on level 3 of the shelf, and in tray 2. The exact position of the battery cell BAT within the relevant area is shown.
  • the battery cell carrier S, R is graphically represented and shows the relevant point with a temperature indication of 75°C.
  • FIG 12 shows an example of a thermal monitoring system (TMS) for a rack storage system (RL) according to one embodiment.
  • FIG 12 differs from FIG 11 only in that, in a storage compartment (LF), a connection point (AP) is available for each stack position (SE1-SE4) of a stored stack (SP) with battery cell carriers (S, R).
  • a connection point AP
  • SE1-SE4 stack position
  • SE1-SE4 battery cell carriers
  • SE1-SE4 battery cell carriers
  • SE1-SE4 battery cell carriers
  • SE1-SE4 battery cell carriers
  • the temperature readings (T1-Tn) and/or over-temperature warnings (AL) for each individual battery cell carrier (S, R) of a stack (SP), as described in FIGS 1 to 4 can be separately acquired via the respective connection point (AP) and forwarded to the connected rack bus (RB).
  • the invention relates to a battery cell carrier S comprising a support base B configured for the orderly accommodation of battery cells BAT with a predetermined cell height BH in a receiving volume AV and at predetermined receiving positions P1-Pn of the battery cell carrier S.
  • a circuit carrier PCB occupying the area of the support base B, is arranged between the support base B and the battery cells BAT.
  • bus-capable digital temperature sensors TS1-TSn are arranged at the respective receiving positions P to directly make thermally conductive contact with a battery cell BAT located opposite, for measuring its housing temperature.
  • the temperature sensors TS1-TSn are connected to a bus interface AN; OS, US arranged on the battery cell carrier S for the purpose of outputting a respective temperature measurement T1-Tn and/or an overtemperature warning AL.
  • the invention also relates to a stack SP consisting of a plurality of such battery cell carriers.
  • F, F1-F3 field, shelf field column, row
  • MOB communication device handset, smartphone
  • PCB printed circuit board
  • circuit carrier circuit carrier
  • TS TS1-TSn (digital) temperature sensor
  • thermistor NTC

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention se rapporte à un support de cellules de batterie (S) comprenant une base de support (B) conçue pour recevoir des cellules de batterie (BAT) avec une hauteur de cellule spécifiée (BH) de manière ordonnée dans un volume de réception (AV) et à des positions de réception spécifiées (P1-Pn) du support de cellules de batterie (S). Un support de circuit (PCB) qui occupe la surface de la base de support, est agencé entre la base de support et les cellules de batterie. Du côté du support de circuit faisant face au volume de réception, en particulier des capteurs de température numérique à capacité de bus (TS1-TSn) sont agencés aux positions de réception respectives afin de venir directement en contact avec une cellule de batterie reçue de manière opposée d'une manière thermoconductrice afin de détecter la température de boîtier de la cellule de batterie. Les capteurs de température sont raccordés pour une transmission de données à une interface de bus (AN ; OS, US) agencée sur le support de cellule de batterie afin de délivrer en sortie une valeur de mesure de température respective (T1-Tn) et/ou afin de délivrer en sortie un avertissement de surchauffe respectif (AL). L'invention se rapporte en outre à un empilement (SP) d'une pluralité de tels supports de cellules de batterie.
PCT/EP2025/064863 2024-06-03 2025-05-28 Support de cellules de batterie avec une surveillance de température de cellules de batterie reçues et empilement d'une pluralité de supports de cellules de batterie Pending WO2025252579A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP24179477 2024-06-03
EP24179477.5 2024-06-03

Publications (1)

Publication Number Publication Date
WO2025252579A1 true WO2025252579A1 (fr) 2025-12-11

Family

ID=91375958

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/064863 Pending WO2025252579A1 (fr) 2024-06-03 2025-05-28 Support de cellules de batterie avec une surveillance de température de cellules de batterie reçues et empilement d'une pluralité de supports de cellules de batterie

Country Status (1)

Country Link
WO (1) WO2025252579A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1634261A1 (fr) 2003-10-20 2006-03-15 Wagner Alarm- und Sicherungssysteme GmbH Procede et dispositif pour reconnaitre et localiser un incendie
EP1811478A1 (fr) 2006-01-07 2007-07-25 Hekatron Vertriebs GmbH Procédé et dispositif destinés à la détection d'un incendie
WO2008138877A1 (fr) 2007-05-16 2008-11-20 Siemens Aktiengesellschaft Détection et localisation d'un incendie
US20090130545A1 (en) * 2005-10-27 2009-05-21 Johnson Controls Technology Company Battery System with Temperature Sensors
WO2009115127A1 (fr) 2008-03-20 2009-09-24 Siemens Aktiengesellschaft Mesure de la température à résolution spatiale à l'intérieur d'un domaine de détection spatial
US20110210703A1 (en) * 2010-03-01 2011-09-01 Boston-Power, Inc. Thermal Sensor Device With Average Temperature And Hot Spot Feedback
US20130171480A1 (en) * 2010-06-03 2013-07-04 A123 Systems, Inc. System and Method for Monitoring Battery Bus Bars Within a Battery Pack
DE102021204398A1 (de) 2021-05-03 2022-04-07 Siemens Schweiz Ag Detektion und Ortsbestimmung eines Brandes in einem Regallagersystem mit Ansaugrauchmeldern oder mit linienförmigen Wärmemeldern in einer Matrixanordnung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1634261A1 (fr) 2003-10-20 2006-03-15 Wagner Alarm- und Sicherungssysteme GmbH Procede et dispositif pour reconnaitre et localiser un incendie
US20090130545A1 (en) * 2005-10-27 2009-05-21 Johnson Controls Technology Company Battery System with Temperature Sensors
EP1811478A1 (fr) 2006-01-07 2007-07-25 Hekatron Vertriebs GmbH Procédé et dispositif destinés à la détection d'un incendie
WO2008138877A1 (fr) 2007-05-16 2008-11-20 Siemens Aktiengesellschaft Détection et localisation d'un incendie
WO2009115127A1 (fr) 2008-03-20 2009-09-24 Siemens Aktiengesellschaft Mesure de la température à résolution spatiale à l'intérieur d'un domaine de détection spatial
US20110210703A1 (en) * 2010-03-01 2011-09-01 Boston-Power, Inc. Thermal Sensor Device With Average Temperature And Hot Spot Feedback
US20130171480A1 (en) * 2010-06-03 2013-07-04 A123 Systems, Inc. System and Method for Monitoring Battery Bus Bars Within a Battery Pack
DE102021204398A1 (de) 2021-05-03 2022-04-07 Siemens Schweiz Ag Detektion und Ortsbestimmung eines Brandes in einem Regallagersystem mit Ansaugrauchmeldern oder mit linienförmigen Wärmemeldern in einer Matrixanordnung

Similar Documents

Publication Publication Date Title
EP2736100B1 (fr) Unité électronique avec dispositif de mesure de la température pour un système de batterie
EP2646785B1 (fr) Dispositif permettant de détecter la température d'un accumulateur d'énergie
CH638636A5 (de) Gasmelder zum einsatz in explosionsgefaehrdeter umgebung.
DE202009002852U1 (de) Sicherungsanordnung
DE102011111081A1 (de) Batteriesensor
WO2021099086A1 (fr) Système de mesure de température pour surveiller la température de multiples cellules de batterie dans un bloc-batterie
DE102012223708A1 (de) Batteriezelle mit Drucksensor
DE102014003090B4 (de) Verfahren zum Herstellen eines Batteriemoduls
DE102016207334A1 (de) Messvorrichtung zur Bestimmung einer Temperatur sowie Batterievorrichtung
WO2025252579A1 (fr) Support de cellules de batterie avec une surveillance de température de cellules de batterie reçues et empilement d'une pluralité de supports de cellules de batterie
DE102016211383A1 (de) Konfigurationseinrichtung, Verfahren, Anordnung, Fortbewegungsmittel und Steuergerät für den Betrieb eines Moduls einer Vielzahl identischer elektrischer Speicherzellen
DE102010010144B4 (de) Akkumulator und Überwachungsschaltung für Akkumulator
DE202019001963U1 (de) Punktmelder, insbesondere Brand- oder Rauchmelder, mit zumindest einem auf einem zugehörigen Schaltungsträger thermisch entkoppelt angeordneten Temperatursensor
EP3887767A1 (fr) Système de mesure d'un état de fonctionnement
EP4073870B1 (fr) Batterie ayant un dispositif de mesure de température
DE102017127702B4 (de) Schmelzsicherung mit integriertem Temperatursensor
EP1800376B1 (fr) Système de surveillance du stress thermique subi par une installation
CH694671A5 (de) Trocknungswaage mit Temperatur-Kalibrierscheibe.
DE102024120002A1 (de) Temperaturprüfvorrichtungen und systeme zum prüfen von batteriezellen und zugehörige verfahren
EP0769679B1 (fr) Enregistreur multi-canaux à encastrer
WO2022229012A1 (fr) Unité de détection pour flux de gaz dans un bloc-batterie ou dans une unité de batterie, bloc-batterie, unité de batterie et procédé de détection de flux de gaz dans un bloc-batterie ou dans une unité de batterie
WO2023052066A1 (fr) Batterie pourvue d'un capteur de température et véhicule automobile
DE102005041746A1 (de) Elektrochemische Energiespeicherzelle
EP3270146B1 (fr) Cellule d'essai electrochimique
EP1543338A1 (fr) Ensemble circuit de test integre et procede de test

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25731210

Country of ref document: EP

Kind code of ref document: A1