WO2011012198A1 - Batterie comprenant une pluralité d'éléments de batterie en forme de plaques - Google Patents

Batterie comprenant une pluralité d'éléments de batterie en forme de plaques Download PDF

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Publication number
WO2011012198A1
WO2011012198A1 PCT/EP2010/004034 EP2010004034W WO2011012198A1 WO 2011012198 A1 WO2011012198 A1 WO 2011012198A1 EP 2010004034 W EP2010004034 W EP 2010004034W WO 2011012198 A1 WO2011012198 A1 WO 2011012198A1
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WO
WIPO (PCT)
Prior art keywords
battery
battery according
frame
cell stack
cells
Prior art date
Application number
PCT/EP2010/004034
Other languages
German (de)
English (en)
Inventor
Dirk Schröter
Jens Meintschel
Original Assignee
Daimler 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 Daimler Ag filed Critical Daimler Ag
Publication of WO2011012198A1 publication Critical patent/WO2011012198A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H01M10/0418—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes with bipolar electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0486—Frames for plates or membranes
    • 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
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • 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
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0411—Arrangement in the front part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0416—Arrangement in the rear part of the vehicle
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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 relates to a battery having a plurality of flat, substantially plate-shaped battery cells, according to the closer defined in the preamble of claim 1.
  • Batteries in such a construction with a stack of flat battery cells are often used as high-performance batteries, for example in vehicles when they are operated electrically or at least partially electrically.
  • Traction batteries are often designed as lithium ion batteries which have an active cooling.
  • the batteries which are arranged outside the passenger safety cell in the so-called crash zones, are easily affected by it. This can lead to a deformation of the battery housing which, for reasons of electrical shielding, usually consists of a metallic or metal-coated material, and optionally of the cell stack
  • Cooling medium takes place. This can lead to a strong overheating of the battery to a fire or even an explosion of the battery.
  • Battery housing comes with the electrically conductive sheaths of the battery cells. Since in such a deformation, the metallic battery case, even if this carries a coating for insulation, is typically strongly deformed, it may in spite of this eventual coating with the Hüllblechen come into direct contact and short individual battery cells, resulting in overheating up to Can cause a fire of the battery. In addition, a corresponding leakage can occur due to the deformation, so that liquid cooling medium - for example water - comes into contact with the active material in the battery individual cells. In the case of lithium-ion cells, this contact of lithium and water can lead to a violent chemical reaction, which can cause a fire or even an explosion.
  • Battery housing will first be supported on the portions which prevents contact of the battery case with the cover plates of the battery cells of the cell stack.
  • the section supporting frame will then direct the forces through the cell stack to the other side of the battery case.
  • the sections of the invention on the frame thus allow a significant improvement in the safety of such batteries, especially when they are used in a vehicle.
  • the frame Since the frame is formed hollow in its interior to receive the active material of the respective single battery cell, this is in terms of its capacity by
  • plate-shaped elements are stacked as crash guiding elements in the cell stack. Since these crash guiding elements are not electrically active, they can be formed continuously and very stably, for example, from an insulating material. It is also conceivable that corresponding conductive regions are provided, which arranged the current from the arranged on one side of the Crashleitelements battery single cell to that on the other side
  • a particularly favorable use of the battery according to the invention is given when used as a traction battery in a motor vehicle.
  • these batteries have a very high power density and typically a high energy content.
  • they have relatively many individual battery cells and a relatively high amount of active material.
  • the scenarios described above are particularly relevant in the event of a crash, so that a particular advantage can be achieved here by the crash control elements according to the invention.
  • Fig. 1 is a schematic diagram of the typical arrangement of batteries in a vehicle
  • Fig. 2 shows a cell stack in a structure according to the invention
  • Fig. 3 is a longitudinal section through a cell stack including battery housing in the
  • Fig. 4 is a view of a single battery cell according to the invention.
  • FIG. 5 shows a cross section through a cell stack together with battery housing in the
  • Fig. 6 is an enlarged view of the detail VI in Fig. 4;
  • Fig. 7 is a view of a cell stack in a particular embodiment of
  • Fig. 8 is a longitudinal section through a cell stack including battery housing in the
  • FIG. 1 shows a schematic diagram of a vehicle 1 is shown in a side view and a plan view.
  • the vehicle 1 is intended to be driven here by way of example via a hybrid drive, which has a motor 2, and which also has electrical drive components which are not explicitly shown here.
  • a hybrid drive which has a motor 2
  • electrical drive components which are not explicitly shown here.
  • Detecting positions for batteries 3 that are needed in the vehicle for storing and providing electrical energy for the hybridized powertrain The position of these batteries 3 is once in the front of the vehicle and once in the rear of the same. These positions are usually chosen because such hybridized powertrains are planned into existing vehicle concepts.
  • the vehicle 1 In the engine compartment - ie in the front - and in the trunk - ie in the rear area - the vehicle 1 is still available space for the batteries 3 or can be made available by, for example, conventional starter batteries are replaced by these traction batteries, or by example on a spare tire is dispensed with and the battery 3 assumes its position in the rear area.
  • the safety of the passenger in the Foreground stands and this typically in a particularly secured
  • Passenger compartment is housed, the front area and the rear area of the
  • Vehicle used as a so-called crash zone, which degrades kinetic energy occurring by a consciously accepted deformation according to the
  • Electric vehicles or fuel cell battery hybrid vehicles are generally required to have a very high energy density, these are typically realized in a Plattenflachbauweise.
  • individual battery cells 4 are stacked to form a cell stack 5.
  • This structure can be seen in the illustration of FIG.
  • This cell stack 5 is then completed in the structure shown here by way of example on each side of a pole plate 6 and joined together with a cooling bar 7 and a housing cover 8 via clamping bands 9 to a cell block 10 together.
  • This cell block 10 consists of the battery single cells 4, which are constructed here as termecciflachzellen which are stacked in a bipolar structure to the cell stack 5 on each other, that is in the region of a pole plate 6, the positive pole of the cell stack 5, while in the area the other pole plate 6 is the negative pole of the cell stack 5.
  • the forwarding of the currents between the battery individual cells 4 is realized by their construction in the interior of the cell stack 5.
  • the detailed structure of such a cell can be exemplified by the German
  • Patent application DE 10 2007 063 181 be referenced.
  • the cell block 10 in the illustration according to FIG. 2 is actively cooled via the cooling plate 7, for which purpose it is connected to a cooling circuit.
  • the connection elements 11 which serve the flow through the cooling plate 7 with a
  • the housing cover 8 may be designed either as a pure lid, or it may be formed in a particularly preferred manner as a board having electronic elements, the
  • FIG. 4 such a single battery cell is shown in a three-dimensional representation in FIG It consists of a frame 13 and two enveloping plates 14 resting on the frame flat sides, which at the same time form the poles of the single battery cell 4.
  • the enveloping plates 14 are respectively bent at the upper edge and the lower edge of the frame 13 in order to produce the required electrical and / or thermal contacts, for example to the board used as housing cover 8 on the one side and to the cooling plate 7 on the other side, in the area of the frame 14 also projecting sections 15 can be seen on two of its side edges. which laterally over he the cladding 14 protrude.
  • These sections 15, which were also already recognizable in the preceding figures, are formed in one piece with the frame 13 in the preferred embodiment.
  • Stacking direction of the battery individual cells 4 essentially transversely to the direction of travel, which is indicated in FIG. 1 by the arrow labeled F, in most crash scenarios in which the front region or rear region of the vehicle are affected, It can be assumed that corresponding force components act in the direction of travel or against the direction of travel F of the vehicle 1. A crash load occurring in this direction would now deform the battery housing 12 of the battery 3 without the sections 15 in such a way that this comes into contact with the battery individual cells 4 or the enveloping plates 14 and if appropriate also the cell stack 5 accordingly deformed.
  • FIG. 6 a further detail of the structure of the sections 15 can be seen.
  • a sectional view was selected with an enlargement of the indicated in Figure 4 longitudinal section VI.
  • the Hüllbleche 14 lie on the side of the frame 13 of the battery single cell 4.
  • the sections 15 now protrude laterally according to the invention beyond the cladding 14 addition.
  • the portions 15 are formed so that they have a greater thickness than the frame 13 in the region in which the cladding sheets 14 lie flat against this.
  • the change in thickness is realized via a step 17, which is designed so that at a force introduction of the
  • Battery housing 12 could lead.
  • Embodiment two plate-shaped elements 18, which serve as Crashleitiata In the longitudinal section of FIG. 8, this can be seen again.
  • the Crashleitiata 18 thereby stabilize the battery case 12 in addition, in particular, because the Crashleitiata 18 are not hollow as the frame 13 of the battery cells 4 inside. They can therefore be made correspondingly more stable and transmit larger forces.
  • such a crash-guiding element 18 can again be seen in a more detailed three-dimensional representation.
  • at least the regions of each of the crash-guiding elements 18 facing the respective edges are formed from electrically non-conductive material.
  • the entire crash-guiding element 18 is formed from insulating material.
  • the current flow in the cell stack 5 is interrupted.
  • it can therefore be provided at certain points in the crash guide 18 conductive regions 19 are arranged, which electrically connect the two right and left of the Crashleitelements 18 arranged battery cells 4 according to the required specifications.
  • These electrically conductive regions 19 can be introduced, for example in the form of metal discs, into the crash guide elements 18, which are otherwise made of non-conductive material.
  • the crash guiding element 18 can be made of a plastic material or a fiber-reinforced material in order to be able to discharge correspondingly high forces.
  • this material could be provided with a bore, in which then a metal core of a correspondingly well-conducting metal such as
  • crash guiding element 18 For example, aluminum or copper can be pressed. It can also be seen that a particularly favorable embodiment of the crash guiding element 18 does not form this as a pure plate with a square or rectangular base, as would also be possible in principle. So that the crash guiding element 18 can also realize a secure positioning of the cooling plate 7 and the housing cover 8, but in particular the cooling plate 7, corresponding projections 20 are provided
  • Crash element 18 can be placed positively on the cooling plate 7, and that the housing cover 8 can also be positively inserted in the Crashleitiata 18 "This structure stabilizes the cell block 10 in addition so that a crash-related impairment can be largely avoided.
  • crash elements 18 Depending on the structure and in particular depending on the length of the cell stack 5, a suitable number of crash elements 18 must be used, which in conventional crash scenarios sufficient stabilization of the battery case 12 and thus prevents contact of the battery case 12 to the battery cells 4.
  • the number of crash elements 18 can not be too high, since they are without electrical functionality and thus extend the size of the battery 3 and in particular the length of the cell stack 5. Too large a number of such Crashleitierin 18 would therefore unnecessarily increase the size of the battery 3 and reduce the power density. Since it has proven particularly favorable when the Crashleiticide 18 outgoing from the center of the cell stack 5 are arranged at a uniform distance to this center. In conventional constructions, as shown for example in the figures, then two of the
  • Crash elements 18 from, in the event of a crash collapse of the battery case 12 with it to prevent damage and / or short circuit of the battery cells 4 as far as possible.
  • the crash guiding elements 18 protect the structure of the cell block 10 as a whole, while the sections 15 are more for the protection of the individual
  • the crash guiding elements 18 also intervene when the deformations of the battery housing 12 become so great that the frames 13 of the battery individual cells 4 are pressed in by the crash loads could.
  • the Crashleitieri 18 serve a deformation of the entire
  • Battery single cells 4 and the cooling medium in the cooling plate 7 can come.
  • lithium ion batteries are used as battery cells 4, such contact between the lithium and the water could lead to a violent chemical reaction, even a fire and / or an explosion.
  • the structure with the sections 15 on at least some of the battery individual cells 4 and optionally the additional crash guide elements 18 in the cell stack 5 thus allows a battery 3, which also in a crash of the vehicle 1 with corresponding deformation of the front end and / or the rear end, in which the Battery 3 is arranged, a comparatively high security of the battery 3 guaranteed.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sustainable Development (AREA)
  • Combustion & Propulsion (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne une batterie (3) comportant une pluralité d'éléments unitaires plats (4), sensiblement en forme de plaques. Les éléments de batterie unitaires (4) sont superposés pour former un empilement d'éléments (5), et entourés d'un boîtier (12) de batterie. Les éléments unitaires (4) sont réalisés sous forme d'une structure plate sur cadre, comprenant des tôles d'enveloppe (14) et un cadre (13) en matériau isolant. Selon l'invention, au moins un certain nombre des éléments de batterie unitaires (4) font saillie sur au moins deux de leurs bords latéraux, au moins par sections (15), hors des tôles d'enveloppe (14) en direction du boîtier de batterie (12), dans la zone des cadres (13),
PCT/EP2010/004034 2009-07-31 2010-07-03 Batterie comprenant une pluralité d'éléments de batterie en forme de plaques WO2011012198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009035463A DE102009035463A1 (de) 2009-07-31 2009-07-31 Batterie mit einer Vielzahl von plattenförmigen Batteriezellen
DE102009035463.8 2009-07-31

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WO2011012198A1 true WO2011012198A1 (fr) 2011-02-03

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PCT/EP2010/004034 WO2011012198A1 (fr) 2009-07-31 2010-07-03 Batterie comprenant une pluralité d'éléments de batterie en forme de plaques

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DE (1) DE102009035463A1 (fr)
WO (1) WO2011012198A1 (fr)

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CN104871339A (zh) * 2012-12-26 2015-08-26 株式会社丰田自动织机 电池模块
CN106299504A (zh) * 2016-09-30 2017-01-04 上海空间电源研究所 一种适用真空环境的高压锂离子电池模块
CN109878315A (zh) * 2017-12-06 2019-06-14 蔚来汽车有限公司 车辆车身部件、电池包及安装有电池的车辆
CN111448090A (zh) * 2017-12-08 2020-07-24 标致雪铁龙汽车股份有限公司 包括电池模块组块的加强u形件的电动或混合动力车辆
CN113320402A (zh) * 2020-02-28 2021-08-31 比亚迪股份有限公司 电池包及电动车

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DE102011100623A1 (de) 2011-05-05 2012-11-08 Daimler Ag Fahrzeug mit einer Batterie
AT511667B1 (de) 2011-06-30 2015-07-15 Avl List Gmbh Wiederaufladbare elektrische batterie
AT511668B1 (de) 2011-06-30 2015-05-15 Avl List Gmbh Wiederaufladbare elektrische batterie
AT511670B1 (de) 2011-06-30 2015-06-15 Avl List Gmbh Wiederaufladbare elektrische batterie
AT512000B1 (de) 2011-09-15 2017-02-15 Avl List Gmbh Elektrischer energiespeicher
AT512016B1 (de) 2011-09-15 2016-06-15 Avl List Gmbh Elektrischer energiespeicher
AT511836B1 (de) 2011-09-29 2013-03-15 Avl List Gmbh Elektrischer energiespeicher für ein elektrofahrzeug
AT512028B1 (de) 2011-10-13 2015-06-15 Avl List Gmbh Elektrischer energiespeicher
DE102013111146A1 (de) 2013-10-09 2015-04-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Batteriemodul für ein Kraftfahrzeug
DE102022208048A1 (de) 2022-08-03 2024-02-08 Volkswagen Aktiengesellschaft Hochvoltbatteriesystem

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Cited By (8)

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CN104871339A (zh) * 2012-12-26 2015-08-26 株式会社丰田自动织机 电池模块
EP2940756A4 (fr) * 2012-12-26 2016-01-20 Toyota Jidoshokki Kk Module pile
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CN104871339B (zh) * 2012-12-26 2017-10-13 株式会社丰田自动织机 电池模块
CN106299504A (zh) * 2016-09-30 2017-01-04 上海空间电源研究所 一种适用真空环境的高压锂离子电池模块
CN109878315A (zh) * 2017-12-06 2019-06-14 蔚来汽车有限公司 车辆车身部件、电池包及安装有电池的车辆
CN111448090A (zh) * 2017-12-08 2020-07-24 标致雪铁龙汽车股份有限公司 包括电池模块组块的加强u形件的电动或混合动力车辆
CN113320402A (zh) * 2020-02-28 2021-08-31 比亚迪股份有限公司 电池包及电动车

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