Classifications

• • 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
  • H01M50/543—Terminals
  • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
  • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/04—Construction or manufacture in general
  • H01M10/0422—Cells or battery with cylindrical 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
  • H01M10/425—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
  • 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
• • 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
  • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery 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
  • H01M10/05—Accumulators with non-aqueous electrolyte
  • H01M10/052—Li-accumulators
  • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• • 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
  • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• • 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
  • 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
  • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
  • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
• • 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
• • 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
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

• the invention is based on a battery module with a plurality of cylindrically designed battery cells according to the preamble of the independent claim.
• the present invention also relates to a method for producing such a battery module and the use of such a battery module.
• battery modules can consist of a plurality of individual battery cells, which can be connected to one another in series and / or parallel in an electrically conductive manner, so that the individual battery cells are interconnected to form the battery module.
• battery modules are interconnected to form batteries or entire battery systems.
• comparably light and preferably scalable battery systems are to be designed.
• a large number of comparably small and usually cylindrical battery cells can be interconnected to form the battery module or the battery.
• Control units which are also known as battery management systems (BMS), are usually used to monitor the battery cells of a battery module. These are used, for example, for a voltage measurement or temperature measurement with sensors arranged on the battery cells connected. Such control units usually have many connections and are complex to wire.
• BMS battery management systems
• a battery module with a plurality of cylindrically designed battery cells with the features of the independent claim offers the advantage that an existing installation space can be used efficiently.
• a control unit in a third receptacle, the height of the battery module can be reduced.
• a battery module with a plurality of cylindrically shaped battery cells is made available.
• the battery cells are designed as lithium-ion battery cells.
• the battery module comprises a first housing element which has a plurality of cylindrical first receptacles. A first plurality of battery cells is received in the first recording, which are electrically conductively connected in series and / or in parallel with one another.
• the battery module comprises a second housing element which has a plurality of cylindrically designed second receptacles.
• a second plurality of battery cells is included, which are electrically conductively connected in series and / or in parallel with one another.
• the first housing element comprises a first base body on which the first receptacles are arranged
• the second housing element comprises a second base body on which the second receptacles are arranged.
• the first base body and the second base body are connected to one another to form a receiving space.
• cell connectors are arranged to form an electrically conductive serial and / or parallel interconnection of the first plurality of battery cells and the second plurality of battery cells.
• the first base body and / or the second base body form a third receptacle outside the receiving space, in which a control unit of the battery module is received.
• the first base body and the second base body form the third receptacle together.
• An embodiment of the battery module according to the invention offers the particular advantage that the cylindrical battery cells can be received directly by the first housing element or the second housing element and thus, for example, additional cell holder elements can be dispensed with.
• the first housing element and the second housing element can in particular also be referred to as half-shells of a housing of the battery module, which together form the housing.
• cylindrical battery cells can also be referred to as round cells.
• Cylindrical battery cells essentially have a cylindrical jacket surface with a circular cross-sectional area, which is closed off on its two opposite sides by a circular base or cover surface.
• the cylindrical battery cells which, for example, do not have a casing made of plastic and which, for example, comprise an electrically conductive housing made of a metallic material, each round cells of type 18650 or type 21700, which have a diameter of approx mm and a height of approx. 65 mm or a diameter of approx. 21 mm and a height of approx. 70 mm.
• the housing of the cylindrically designed battery cells is usually negatively charged and forms the negative voltage from the respective battery cell.
• the positive voltage tap of the battery cell is arranged on a cover surface, which is electrically isolated from the housing and thus the negative voltage tap.
• an electrical interconnection of the first plurality of battery cells and the second plurality of battery cells can be formed, in which case the cell connectors can be arranged within the first base body or the second base body.
• the cell connectors are arranged between the first plurality of battery cells and the second plurality of battery cells.
• a control unit of the battery module is received in the third receptacle.
• the control unit of the battery module is in particular a battery management system (BMS).
• Cylindrical recordings are at this point each hollow body, which are at least partially limited by a cylindrical outer surface with a circular cross-sectional area. Furthermore, the cylindrical receptacles have a bottom surface which also limits the cylindrical receptacle on a bottom side if. On the side opposite the bottom side, the cylindrical hollow body has an opening through which a battery cell can be inserted into the receptacle. At this point it should be noted that the battery cells can be accommodated directly in the respective receptacle, for example without the arrangement of an insulating layer, such as air.
• first or second receptacle in particular, exactly one battery cell is received in each case.
• An arrangement of a receptacle on a base body of a housing element should be understood to mean that the receptacle is, for example, integrally connected to the base body, the base body having an opening which corresponds to the opening of the cylindrical hollow body of the receptacle.
• a battery cell can thus be inserted into the respective receptacle through the opening in the base body or the opening in the receptacle.
• The, for example, circular cross-sectional area of a battery cell is preferably arranged in direct contact with the respective circular cross-sectional area of the cylindrical hollow body of the receptacle.
• a material connection between the housing of the respective battery cell and the receptacle is particularly advantageous. This cohesive connection of this type can be implemented, for example, by adhesives or pastes and can achieve an optimal thermal see connection between the respective battery cell and the respective recording form.
• the first base body and the second base body are positively connected to one another.
• Such connec tions can be formed in a particularly simple manner.
• the first base body and the second base body can be non-positively and in particular non-positively and positively connected to one another.
• such a connection can also be formed by means of screwing.
• materially connect the first base body and the second base body can be formed, for example, by means of plastic welding of the polymeric materials.
• the first base body and the second base body are particularly preferably connected to one another by means of a folded joint.
• the folded seam connection is formed circumferentially over the entire connection between the first base body and the second base body.
• the first base body can have a first rebate element and the second base body can have a second rebate element, which can be connected positively or positively and non-positively by means of a corresponding folded connection.
• the first folding element can be inserted into the second folding element to form a Falzver connection.
• the first folding element and / or the second folding element can still be deformed after insertion.
• the first rebate element and / or the second rebate element could for this purpose comprise a corresponding sealing element in order to be able to increase the tightness even further.
• the sealing element can be integrated into the folding element.
• such a folded joint can simultaneously also form at least one guide rail which is designed to accommodate the battery module in a vehicle.
• a handle or a handle can be integrated into the folded joint.
• the handle or the handle can also be designed as a holding band or a carrying strap.
• the rabbet connection can also be designed, for example, in such a way that a handle or a handle can be plugged in in a simple manner or that a retaining strap or a carrying strap can be arranged in a simple manner. In particular, the tightness is not impaired.
• the third receptacle is advantageously integrated into the folded seam connection.
• the third receptacle can be formed in a simple manner.
• a connection between the control unit and the plurality of first battery cells or the plurality of second battery cells for monitoring them can thereby also be established in a simple manner.
• the battery module comprises an electrical connection.
• the electrical connection is integrated in the first base body and / or in the second base body.
• the electrical connection is designed to tap a voltage from the battery module or to be able to electrically charge the plurality of battery cells.
• the battery module particularly preferably comprises two electrical connections, such as, for example, a positive electrical connection and a negative electrical connection.
• the electrical connection or the electrical connections are each designed as a plug connection.
• the advantage of a plug connection is a particularly simple connection.
• the electrical connection is preferably integrated into the folded seam connection it can be that the folded joint is designed with a greater width at the point of the electrical connection.
• the insertion direction of a battery module in a vehicle preferably also determines the insertion direction.
• a training is advantageous in which the final arrangement of the electronic connection does not have to be determined until the end of the assembly process.
• the design of the battery module can be better adapted to a wide variety of vehicle types without changing the design, since different insertion directions are possible with one design.
• the electrical connection and / or the electronic connection is arranged on one side of the first base body and / or the second base body, which is disposed perpendicular to a folded joint formed as a guide rail. In this way, a particularly reliable connection to a vehicle or a charger can be established.
• the electrical connection and the third receptacle can preferably be integrated into the folded seam connection in such a way that the folded seam connection is designed with a greater width at the location of the electrical connection or the third receptacle.
• the electrical connection and / or the third receptacle is arranged on one side of the first base body and / or the second base body, which is arranged perpendicular to a folded joint formed as a guide rail. This enables a particularly reliable connection to the vehicle to be established.
• the first plurality of battery cells is interconnected in parallel with one another in parallel first strings in the direction of a longest extension of the first base body and the second plurality of battery cells is interconnected in parallel with one another in parallel second strings in the direction of a longest extension of the second base body.
• the first plurality of battery cells or the second plurality of battery cells is arranged, for example, in such a way that the battery cells of a parallel first line or a parallel second line each in the direction of a longest extension of the first
• the base body or the second base body are arranged directly adjacent to one another, the longitudinal directions of the battery cells all being arranged in the same plane.
• the plurality of parallel first strands or the plurality of parallel second strands are arranged next to one another in a shortest extent of the first base body or the second base body arranged perpendicular to the longest extent of the first base body or the longest extent of the second base body.
• the control unit is designed to monitor the parallel first strands and the parallel second strands.
• the battery module comprises at least one first sensor element which is designed to detect a state variable of a battery cell of the first plurality of battery cells and / or the battery module comprises at least a second sensor element which is designed to have a To detect the state variable of a battery cell of the second plurality of battery cells.
• a state variable of a battery cell can be, for example, a temperature, a voltage or an aging state.
• the first sensor element and / or the second sensor element can be electrically and mechanically connected to a first clamp connection or a second clamp connection, which are connected to the first housing element and / or the second housing element. This also makes it possible, please include to fix the control unit of the battery module mechanically in the battery module.
• the at least one first sensor element or the at least one second sensor element is connected in terms of control technology to the control unit of the battery module.
• a further control unit of the battery module is arranged in the receiving space.
• the control unit and the further control unit are connected to one another in terms of control technology. This makes it possible to separate functions for monitoring the battery module and, in other words, to provide a two-part design of the control unit.
• the other Control unit be designed to detect the voltage and the temperature of the battery cells of the first plurality of battery cells and the second plurality of battery cells.
• the arrangement of the further control unit of the battery module can in particular be based on the first housing element and / or the second housing element.
• the further control unit of the battery module extends essentially over the entire length of the shortest extent of the first base body or the shortest extent of the second base body. This makes it possible to monitor all parallel first strings and all parallel second strings.
• extension of the further control unit of the battery module over the longest extension of the first base body or the longest extension of the second base body can be adapted to the monitoring requirements in accordance with the requirements.
• control unit and the further control unit are arranged essentially perpendicular to one another.
• the front-end chip for example, can be arranged on the further control unit. Recorded measured values can be transmitted to the pC via a signal line.
• a solid state relay (SSR) can be implemented on the control unit.
• the first sensor element prefferably be arranged on the further control unit and to be connected to a cell connector that electrically connects two battery cells of the first plurality of battery cells.
• the second sensor element is particularly expediently arranged on the further control unit and connected to a cell connector that electrically connects two battery cells of the second plurality of battery cells.
• the first sensor element is therefore preferably connected to a cell connector which electrically conductively connects two battery cells of the first plurality of battery cells
• the second sensor element is therefore connected to a cell connector which electrically conductively connects two battery cells of the second plurality of battery cells.
• the first sensor element and / or the second sensor element can preferably be soldered as a spring contact pin on a circuit board of the further control unit of the battery module and form direct mechanical and electrical contacting of the cell connectors. In particular, the voltages of one of the first parallel strands or one of the second parallel strands can thereby be detected.
• the cell connectors could each also include at least one shaft which is arranged between the respective connection areas.
• the first sensor element or the second sensor element could mechanically and electrically contact the at least one shaft of the respective cell connector.
• the shaft of the cell connector could also be designed as a spring element which presses against the first sensor element or the second sensor element.
• each first receptacle of the first housing element and of each second receptacle of the second housing element is arranged so that temperature fluid can flow around it.
• the temperature control fluid is preferably a temperature control gas, such as air.
• a temperature control gas such as air.
• a further compensating material can advantageously be arranged between a cylindrical outer surface of a first receptacle of the first housing element and a cylindrical outer surface of a second receptacle of the second housing element.
• the battery cells could therefore only be placed over the circular floor area of the respective location temperature can be controlled.
• the temperature control could be over the circular bottom surface of the respective receptacle instead of, for example, additional temperature control over the respective cylindrical jacket.
• first housing element and the second housing element are formed from a polymer material.
• the polymeric material can be selected as a polyamide (PA), such as PA 66. This makes it possible to minimize the weight of the battery module and at the same time to provide sufficient mechanical strength.
• PA polyamide
• the first housing element and the second housing element can comprise glass fibers, which can for example be embedded in the polymeric material.
• the first housing element and the second housing element, in particular the plurality of first receptacles and the plurality of second receptacles preferably have a wall thickness less than 2 mm and in particular 1 mm.
• the weight of the battery module can thus be reduced with sufficient mechanical strength at the same time in such a way that reliable temperature control of the plurality of cylindrically designed battery cells is also possible.
• the first housing element and the second housing element can be formed inexpensively by un ferent manufacturing technologies, such as deep drawing.
• first plurality of battery cells and the second plurality of battery cells are arranged directly opposite one another.
• the cylindrical battery cells each have a longitudinal direction, the longitudinal directions of the first plurality of battery cells and the longitudinal direction of the second plurality of battery cells being arranged parallel to one another.
• the longitudinal direction of the first plurality of battery cells and the longitudinal direction of the second plurality of battery cells are also arranged parallel to one another.
• the first housing element and the second housing element are also arranged directly opposite one another.
• the present invention also relates to the use of a battery module according to the invention just described in a light electric vehicle (light electric vehicle; LEV).
• LEV light electric vehicle
• a method for producing a battery module just described with a plurality of cylindrically shaped battery cells, in particular special lithium-ion battery cells is the subject of the present invention.
• the first base body and / or the second base body furthermore form a third receptacle outside the receiving space, in which a control unit of the battery module is received.
• FIG. 1 shows an embodiment of a battery module according to the invention in an exploded view
• FIG. 2 shows a further embodiment of a battery module according to the invention in an exploded view
• Figure 3 is a plan view of a further control unit of the battery module.
• FIG. 1 shows an embodiment of a battery module 1 according to the invention in an exploded view.
• the battery module 1 comprises a plurality of the cylindrically designed battery cells 2, which cannot be seen in FIG. 1, which are designed in particular as lithium-ion battery cells 20.
• the battery module 1 has a first housing element 31 and a second housing element 32.
• the first housing element 31 and the second housing element 32 are made of a polymer material, such as a polyamide.
• the first housing element 31 has a plurality of cylindrically formed first receptacles 41 and the second housing element 32 has a plurality of cylindrically formed second receptacles 42.
• Each first receptacle 41 of the first housing element 31 comprises a cylindrically designed jacket surface 91, all of which are arranged so that temperature control fluid can flow around them.
• Each second receptacle 42 of the second housing element 32 comprises a cylindrically shaped outer surface 92 which are all arranged so that the temperature control fluid can flow around them.
• cylindrical outer surfaces 91 of the first receptacles 41 and the cylindrically shaped outer surfaces 92 of the second receptacles 42 are preferably arranged so that temperature control fluid can flow around them completely, but at least partially.
• cylindrical outer surfaces 91 or cylindrical outer surfaces 92 can touch one another.
• first housing element 31 and / or the second housing element 32 has a third receptacle 43.
• the third receptacle 43 is designed to receive a control unit 10 of the battery module 1.
• the first receptacles 41 take a first plurality 21 of Batteriezel len 2, which are electrically connected in series and / or in parallel with one another.
• the second receptacles 42 hold a second plurality 22 of battery cells 2, which are electrically connected in series and / or in parallel with one another.
• the battery cells 2 can be connected in parallel to one another along the longer sides.
• the serial connection can be made along a shorter side.
• the third receptacle 43 accommodates the control unit 10 of the battery module 1.
• the first housing element 31 furthermore comprises a first base body
• the second housing element 32 furthermore comprises a second base body
• the first base body 31 and / or the second base body 32 essentially have a cuboid basic shape.
• the first base body 51 and the second base body 52 are connected to one another with the formation of a receiving space 6 (not shown in FIG. 1).
• the first base body 31 and the second base body 32 are positively connected to one another by means of a folded joint 8.
• the folded joint 8 is arranged circumferentially on the connection between the first base body 31 and the second base body 32 and seals the battery module 1 from the surroundings of the battery module 1.
• Cell connectors 7, which also cannot be seen in FIG. 1, can be arranged in the receiving space 6.
• the cell connectors 7 connect the first plurality 21 of battery cells 2 and the second plurality 22 of battery cells 22 electrically in series and / or in parallel with one another.
• the third receptacle 43 is also integrated into the folded seam connection 8.
• first plurality 21 of battery cells 2 are interconnected in parallel with one another in parallel first strings 171 in the direction of a longest extension 161 of the first base body 31.
• the second plurality 22 of battery cells 2 are interconnected in parallel with one another in parallel second strings 172 in the direction of a longest extension 162 of the second base body 32.
• the control unit 10 of the battery module 1 is designed to monitor the parallel first strings 171 and / or the parallel second strings 172.
• the first plurality 21 of battery cells 2 and the second plurality 22 of battery cells 2 are arranged directly opposite one another.
• the battery module 1 has an electrical connection 14 integrated in the first base body 31 and / or in the second base body 32.
• the battery module 1 has a first electrical connection 141, for example a positive electrical connection, and a second electrical connection 142, for example a negative connection.
• the electronic connection 13 can be designed as a plug. Such a plug can, for example, enable the high-current path to be contacted to the vehicle or charger and can, for example, forward control signals to a control device (not shown).
• the battery module 1 comprises an electrical connection 14.
• the electrical connection 14 is designed to discharge or charge the battery cells 2 of the battery module 1.
• the battery module 1 has a first electrical connection 141 and a second electrical connection 142.
• the first electrical connection 141 can in particular be a positive electrical connection and the second electrical connection 142 can in particular be a negative electrical connection.
• first electrical connection 141 for example, an electrical connection to the battery cells 2 of the first base body 31 can be established, and by means of the second electrical connection 142, for example, an electrical connection to the battery cells 2 of the second base body 32 can be established.
• the control device 10 enables the connection between the electronic connection 13 and the battery cells 2 of the first base body 31 or the connection between the electronic connection 13 and the second base body 32 to be separated. A shutdown path is thereby formed.
• control unit 10 For this purpose, a plurality of several semiconductors, which cannot be seen in the figures, is preferably arranged on the control unit 10.
• the front-end chip (ASIC) 17, for example, can be arranged on the control unit 10. Furthermore, the further control unit 100 has a connection 18 which is designed to connect the further control unit 100 to the control unit 100 in terms of control technology.
• the third receptacle 43 has a connection terminal 180 which is formed.
• the control unit 10 has a cover element 19, which is used to close the control unit 10 from an environment.
• the cover element also has at least one electronic connection 13, which is designed to contact the control unit 10 in terms of control technology.
• the electrical connections 141, 142 can also be integrated in the cover element 10.
• FIG. 2 shows another embodiment of the invention of a Batteriemo module 1 in an exploded view.
• a further control unit 100 of the battery module 1 is accommodated in the receiving space 6.
• the control unit 10 and the further control unit 100 are connected to one another in terms of control technology.
• FIG. 3 shows a plan view of a further control unit 10 of the battery module 1.
• the battery module 1 comprises first sensor elements 151 which are designed to each detect a state variable of a battery cell 2 of the first plurality 21 of battery cells 2 and comprises second sensor elements 152 which are designed to each sense a state variable of a battery cell 2 of the second plurality 22 of battery cells 2 to be recorded.
• the first sensor elements 151 and the second sensor elements 152 are connected to the control unit 10 of the battery module 1 in terms of regulation.
• the first sensor elements 151 are arranged on the further control unit 100 and are connected to a cell connector 7 that electrically connects two battery cells 2 of the first plurality 21 of battery cells 2.
• the second sensor elements 152 are arranged on the further control unit 100 and are connected to a cell connector 7 that electrically connects two battery cells 2 of the second plurality 22 of battery cells 2.
• the front-end chip (ASIC) 17, for example, can be arranged on the further control unit 100.
• the further control unit 100 has a connection 18 which is designed to connect the further control unit 100 to the control unit 100 in terms of control technology.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=76584469

Family Applications (1)

Country Status (5)

Family Cites Families (7)

• 2020
  • 2020-06-19 DE DE102020207632.4A patent/DE102020207632A1/de active Pending
• 2021
  • 2021-06-09 EP EP21734057.9A patent/EP4169103A1/de active Pending
  • 2021-06-09 WO PCT/EP2021/065476 patent/WO2021254848A1/de unknown
  • 2021-06-09 JP JP2022577540A patent/JP2023531195A/ja active Pending
  • 2021-06-17 TW TW110122092A patent/TW202215691A/zh unknown

Also Published As

Similar Documents

Legal Events