WO2022073684A1 - Elektrischer energiespeicher - Google Patents
Elektrischer energiespeicher Download PDFInfo
- Publication number
- WO2022073684A1 WO2022073684A1 PCT/EP2021/073558 EP2021073558W WO2022073684A1 WO 2022073684 A1 WO2022073684 A1 WO 2022073684A1 EP 2021073558 W EP2021073558 W EP 2021073558W WO 2022073684 A1 WO2022073684 A1 WO 2022073684A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing part
- housing
- energy store
- lib
- electrical energy
- Prior art date
Links
- 210000000352 storage cell Anatomy 0.000 claims abstract description 12
- 239000002775 capsule Substances 0.000 claims abstract description 4
- 210000004027 cell Anatomy 0.000 claims description 84
- 238000009434 installation Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 15
- 230000009172 bursting Effects 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 7
- 229910001416 lithium ion Inorganic materials 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000007872 degassing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- -1 sawdust Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—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
- H01M10/05—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
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- 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
-
- 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
- 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 relates to an electrical energy store for motor vehicles, in particular a lithium-ion store and a method for constructing a lithium-ion store for use in vehicles, such as known as on-board batteries, high-voltage stores or traction batteries.
- the electrical energy store in particular a lithium-ion store, is referred to as an energy store for short.
- DE 10 2019 110 007 B4 discloses an energy store (in the form of a lithium-ion store) that has a storage space with two horizontally separate compartments (or housing parts), in which the horizontal partition is designed as a cooling plate in which the cell assembly hangs in the lower installation space and is connected to the cooling plate with good thermal conductivity and in which the cell contact and the hazard opening of each cell are directed downwards.
- the horizontal partition is designed as a cooling plate in which the cell assembly hangs in the lower installation space and is connected to the cooling plate with good thermal conductivity and in which the cell contact and the hazard opening of each cell are directed downwards.
- the invention relates to an electrical energy store for installation in a motor vehicle, consisting of at least two housing parts,
- first housing part is not provided for accommodating storage cells and a second housing part is provided for accommodating all storage cells
- first housing part is provided for installation in the motor vehicle as the upper housing part and the second housing part is provided for installation in the motor vehicle as the lower housing part,
- first housing part can be closed with a removable first cover
- the second housing part is formed by a non-removable second cover as a closed capsule.
- a central housing part is arranged between the two housing parts, which horizontally separates the two housing parts and contains an intermediate space for a cooling fluid to flow through.
- the first housing part is designed to accommodate the memory electronics and has electrical connections projecting outwards.
- the storage electronics of the first housing part and the storage cells of the second housing part are electrically connected to an electrical contact, e.g. a cable harness, whose passage(s) through the middle part of the housing is (are) provided with seal(s).
- an electrical contact e.g. a cable harness
- the seal is designed to be resistant to bursting pressure.
- the second housing part contains a cell pack with the storage cells, the housing of which is built in State are aligned vertically, and arranged below the cell pack frame.
- the frame which is directed downwards (in the installed state) has a framework of support elements which act as force-absorbing housing extensions for the cells.
- the support elements are designed either as a separate support below a cell housing or as an extension of the cell housing or as a support tube that completely surrounds the cell(s) and additionally has a cavity.
- the second cover has at least one material thinning in some areas, which acts as a predetermined crack point in the event of a critical overpressure in the accumulator.
- the cell pack is protected from damage in the event of a side and longitudinal crash by a gap to the outer boundaries of the second housing part, which is at least partially reinforced by plastoelastic material filling the gaps.
- the invention is based on the following considerations:
- the invention is intended to help reduce the cost of the energy store (e.g. in the form of a lithium-ion store, also often abbreviated to "LiB").
- the energy store e.g. in the form of a lithium-ion store, also often abbreviated to "LiB”
- an energy storage device is proposed which, in addition to this known state, has the following properties:
- the energy storage device is divided into an electronics installation space facing the vehicle interior and a hermetically sealed cell installation space facing the vehicle exterior. Due to the hermetic sealing of the cell installation space, there is no need for seals and devices for degassing and/or condensate removal. Furthermore, exposure to moisture and corrosion of elements of the cell pack are excluded and, in the event of a hazard, cell ejections are prevented from penetrating into the vehicle interior.
- the hermetically sealed connection leads to a high rigidity of the arrangement.
- the overpressure relief function takes place through cracks in the wall of the cell installation space on the outside of the vehicle. The protection of the cell pack in side and longitudinal crashes is reinforced by force-distributing plasto-elastic material.
- the plastoelastic material directs the intrusion forces quasi-hydraulically around the cell pack or between the cells, which means that more material can be involved in the crash absorption and the forces are at least partially converted from compressive to tensile forces and in this form of the wall of the cell construction space are applied, which leads to improved material utilization.
- the cells are evenly pressurized from all sides, which reduces the risk of cell damage in the event of a crash.
- the plastoelastic material can have intumescent properties in order to support the propagation stop at the cell level.
- the protection of the cell pack in the event of a bollard crash is provided by the transmission of force from the wall of the cell installation space facing the roadway via an intermediate element in the area of the cell contact between the cells or onto the cell wall and through this to the wall of the cell installation space facing the inside of the vehicle, which supports both the power transmission on the body structure of the vehicle and includes the cooling function for the cells.
- the intermediate element also reduces the effect by separating the degassing spaces of the individual cells of a cell hazard and thereby increases protection against thermal propagation. Separating the electronics installation space from the cell installation space protects the electronics in the event of a hazard to the battery and ensures that it continues to function.
- the arrangement of the electronics installation space on the inside of the vehicle enables protection against moisture, increased temperature and high mechanical stress with the means commonly used in vehicle construction, for example for infotainment electronics. Furthermore, the electronic components can be serviced without opening the cell installation space.
- the partition wall between the two installation spaces is used to cool the cell pack and electronics.
- FIG. 2a shows a possible first embodiment of the support elements forming the frame according to the invention
- the first housing part 2 is directed in the direction of the vehicle interior (i.e. upwards when installed), preferably serves to accommodate the storage electronics 6 and has electrical connections 7 that are directed outwards.
- the second housing part 3 is directed in the direction of the vehicle exterior (i.e. downwards in the installed condition directed to the roadway) and serves to accommodate the storage cells 17 (also called cells for short), which are designed in particular as a cell pack 8 .
- the cells 17 can be round cells or prismatic cells, for example.
- the storage electronics 6 and the cell pack 8 are electrically connected, for example, to an electrical contact 9, the passage of which through the central housing part 1 is preferably provided with a hermetic seal 10 that is resistant to bursting pressure is.
- the first housing part 2 is provided with a cover 11 which is attached and sealed to the middle part 1 and can be repeatedly removed in order to enable servicing of the electronic components.
- the second housing part 3 is hermetically sealed with a central housing part 1 which cannot be removed again, e.g. B. welded, crimped or glued, cover 12 is provided.
- the second housing part 3 is designed as a closed capsule by the housing middle part 1 and by the non-removable cover 12 .
- the middle part 1 consists of two deep-drawn, stamped z. B. plates 1a and 1b welded together with flat sections 1c and 1d, which provide the thermal contact surfaces for the storage electronics 6 and the cell pack 8.
- the first plate 1a includes holes 1e and 1f for the attachment of the terminals 5 and the connectors 7, and a flange for the attachment of the first cover 11.
- the second plate 1b includes a flange or edge for attaching the second cover 12.
- 1a, 1b, 12 can be made of metal, plastic or a multi-layer plastic-metal composite and at least partially provided with electrical insulation, e.g. foil be.
- the cell pack 8 preferably consists of a (in the installed state) downward-facing frame 13, cell contacts 14, connections for cell sensing 15, electrical connections 16 for the cell pack side of the electrical contact 9, the cells 17, an adhesive bond or filler 19 between the Cells 17 and a soft encapsulation 20 around the cell contacts 14 and the cell sensors 15.
- the filler 19 can be made of the same material as the soft encapsulation 20 and can be introduced together with it. In a preferred embodiment, these consist of a hard paraffin.
- the cell contacts 14, the cell sensors 15 and the connections 16 are at least partially preassembled in the frame 13 and form an ensemble 21, which in a first alternative 18a with the second cover 12 and the middle part 1 or in a second alternative 18b with the cells 17 and the middle part 1 can be firmly connected.
- the connection can be made, for example, by an application adhesive or by double-sided adhesive films that are preferably good thermal conductors by pre-application on one of the elements to be connected or by welding.
- a carrier 21 which serves to position the cells 17 .
- the carrier 21 can, for example, have spikes in the interstices of the storage cells 17 in a known manner if these are in the form of round cells.
- the frame 13 can be designed as part of the carrier 21 and also serves as a force-transmitting element from the second cover 12 to the middle part 1 or to the cell wall 17a for the transmission of forces from bollard crashes to the middle part 1 , and as a partition of the individual cells 17 assigned Degassing spaces 22 among themselves for directing gases and particles ejected from cells 17 in the event of a hazard and protecting neighboring cells 17.
- the frame 13 comprises a framework of support elements 30 which act as force-absorbing housing extensions of the cells 17.
- a support element 30 can be designed either as a separate support below a cell housing (FIG. 2a) or as an extension of the cell housing or as a support tube that completely surrounds the cell and also has a cavity H (FIG. 2b).
- the support elements 30 preferably have integrated electrical connections for forming the cell contacts 14 and/or the connections for the cell sensors 15 and/or the electrical connections 16 for the cell pack side of the electrical contact 9 .
- the support elements 30 can be parts of the carrier 21 .
- the second cover 12 contains at least one material thinning 12a, at least in some areas, which acts as a predetermined crack point in the event of a critical overpressure in the accumulator and limits the overpressure in a controlled manner.
- a plurality of material thinnings 12a are preferably implemented on the front, rear and/or underside of the second cover 12 .
- the predetermined crack point is represented by a local weakening of the hermetically sealed connection 12b of the middle housing part 1 and the second cover 12.
- the cell pack 8 is preferably also protected from damage in the event of a side and longitudinal crash by an intermediate space 23 to the outer boundaries of the second housing part 3 .
- this protection is at least partially reinforced by the plastoelastic material 24 filling the gaps 23, which spread locally acting forces over a larger area and redirect the direction of the force hydraulically, thereby including the entire storage system in the absorption of the crash energy.
- the plastoelastic material 24 consists of a little compressible, light plastic granulate, mineral filler, sand, cork, sawdust, wax, fluid or a combination thereof, which fills the gaps 23 .
- the plastoelastic material has intumescent properties.
- the plastoelastic material 24 can be packed in tubes or the like. In a further embodiment, the plastoelastic material 24 consists of preformed profiles. In a further embodiment, the adhesive or filler 19 and plastoelastic material 24 and possibly soft casting 20 consist of the same material and are introduced in a common production step.
- the storage electronics 6 preferably contain the cell monitor 6a, the protective switching devices 6b, the battery management system 6c and optionally converters 6d for supplying other voltage levels in the vehicle, converters 6e for connecting vehicle-external supply voltages and switching devices, safety devices and filters 6f for current consumers in the vehicle.
- the elements of the storage electronics 6 are at least partially connected to the cell pack 8 via the electronics side of the electrical contacting 9 and to the connections 7 via further electrical connections 25 .
- the connections 7 and the other connections 25 are combined in one component, eg a picktail.
- 3 schematically shows advantageous steps for constructing the energy store LiB according to the invention:
- the cells 17 are inserted.
- the middle part of the housing 1 is put on and glued.
- the bond 19 is applied between the cells 17 by pouring an adhesive.
- the cells 17 are provided with the cell contacts 14 and the electrical contacts 9 are connected.
- the carrier 21 is cast, the cells 17 being enclosed with the cell contacts 14 and the cell sensors 15.
- Plastoelastic material 24 is introduced into the at least one intermediate space 23.
- the second cover 12 is put on and permanently connected (e.g. glued) to the middle part 1 of the housing.
- the energy store LiB with all of the aforementioned parts except for the first cover 11 is cured after it has been glued, welded or connected in some other way.
- the energy storage is turned.
- the storage electronics 6 are assembled.
- the storage electronics 6 and the electrical connections 25 are connected to the electrical contact 9 .
- the detachable cover 11 is closed and the resulting overall arrangement of the energy store LiB is tested and removed for installation in the motor vehicle.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180049417.5A CN115989607A (zh) | 2020-10-08 | 2021-08-26 | 电能量存储器 |
JP2023515274A JP2023543973A (ja) | 2020-10-08 | 2021-08-26 | 電気エネルギー貯蔵体 |
KR1020227044616A KR20230013105A (ko) | 2020-10-08 | 2021-08-26 | 전기 에너지 저장기 |
US18/030,789 US20230411672A1 (en) | 2020-10-08 | 2021-08-26 | Electric Energy Store |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020126424.0 | 2020-10-08 | ||
DE102020126424.0A DE102020126424A1 (de) | 2020-10-08 | 2020-10-08 | Elektrischer Energiespeicher |
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WO2022073684A1 true WO2022073684A1 (de) | 2022-04-14 |
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US (1) | US20230411672A1 (de) |
JP (1) | JP2023543973A (de) |
KR (1) | KR20230013105A (de) |
CN (1) | CN115989607A (de) |
DE (1) | DE102020126424A1 (de) |
WO (1) | WO2022073684A1 (de) |
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DE102021102017A1 (de) | 2021-01-29 | 2022-08-04 | Bayerische Motoren Werke Aktiengesellschaft | Elektrischer Energiespeicher für den Einbau in ein elektrifiziertes Kraftfahrzeug |
DE102021102338A1 (de) | 2021-02-02 | 2022-08-04 | Bayerische Motoren Werke Aktiengesellschaft | Elektrischer Energiespeicher |
DE102021110219A1 (de) | 2021-04-22 | 2022-10-27 | Bayerische Motoren Werke Aktiengesellschaft | Batteriezelle für einen elektrischen Energiespeicher zum Einbau in ein elektrifiziertes Kraftfahrzeug |
DE102022125713A1 (de) | 2022-10-05 | 2024-04-11 | Bayerische Motoren Werke Aktiengesellschaft | Elektrisch betriebenes Kraftfahrzeug |
DE102023108787B3 (de) | 2023-04-05 | 2024-05-29 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kraftfahrzeug, umfassend eine Traktionsbatterie und einen Fahrgastraum |
Citations (5)
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DE102014221707A1 (de) * | 2014-07-11 | 2016-01-14 | Robert Bosch Gmbh | Gehäuse für eine Vielzahl von Batteriezellen umfassend drei Hauptbestandteile |
US20190334136A1 (en) * | 2018-04-27 | 2019-10-31 | Ford Global Technologies, Llc | Polymer-based enclosure assemblies for electrified vehicle battery packs |
DE102018210690A1 (de) * | 2018-06-29 | 2020-01-02 | Bayerische Motoren Werke Aktiengesellschaft | Speichermodul für einen Energiespeicher eines Kraftfahrzeugs sowie Energiespeicher für ein Kraftfahrzeug |
US20200067045A1 (en) * | 2016-12-27 | 2020-02-27 | Panasonic Intellectual Property Management Co., Ltd. | Battery module |
DE102019110007B3 (de) | 2019-04-16 | 2020-08-06 | Bayerische Motoren Werke Aktiengesellschaft | Batterieanordnung für ein Fahrzeug umfassend eine Trägervorrichtung mit zwei Aufnahmeräumen sowie Fahrzeug |
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DE102011104499A1 (de) | 2011-06-17 | 2012-12-20 | Audi Ag | Batterie für ein Fahrzeug |
AT515315B1 (de) | 2014-01-28 | 2015-08-15 | Avl List Gmbh | Batteriemodul |
-
2020
- 2020-10-08 DE DE102020126424.0A patent/DE102020126424A1/de active Pending
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2021
- 2021-08-26 JP JP2023515274A patent/JP2023543973A/ja active Pending
- 2021-08-26 WO PCT/EP2021/073558 patent/WO2022073684A1/de active Application Filing
- 2021-08-26 KR KR1020227044616A patent/KR20230013105A/ko unknown
- 2021-08-26 US US18/030,789 patent/US20230411672A1/en active Pending
- 2021-08-26 CN CN202180049417.5A patent/CN115989607A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102014221707A1 (de) * | 2014-07-11 | 2016-01-14 | Robert Bosch Gmbh | Gehäuse für eine Vielzahl von Batteriezellen umfassend drei Hauptbestandteile |
US20200067045A1 (en) * | 2016-12-27 | 2020-02-27 | Panasonic Intellectual Property Management Co., Ltd. | Battery module |
US20190334136A1 (en) * | 2018-04-27 | 2019-10-31 | Ford Global Technologies, Llc | Polymer-based enclosure assemblies for electrified vehicle battery packs |
DE102018210690A1 (de) * | 2018-06-29 | 2020-01-02 | Bayerische Motoren Werke Aktiengesellschaft | Speichermodul für einen Energiespeicher eines Kraftfahrzeugs sowie Energiespeicher für ein Kraftfahrzeug |
DE102019110007B3 (de) | 2019-04-16 | 2020-08-06 | Bayerische Motoren Werke Aktiengesellschaft | Batterieanordnung für ein Fahrzeug umfassend eine Trägervorrichtung mit zwei Aufnahmeräumen sowie Fahrzeug |
Also Published As
Publication number | Publication date |
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CN115989607A (zh) | 2023-04-18 |
US20230411672A1 (en) | 2023-12-21 |
JP2023543973A (ja) | 2023-10-19 |
DE102020126424A1 (de) | 2022-04-14 |
KR20230013105A (ko) | 2023-01-26 |
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