EP2502292A1 - Boîtier de batterie pour la réception de dispositifs accumulateurs d'énergie électrochimiques - Google Patents

Boîtier de batterie pour la réception de dispositifs accumulateurs d'énergie électrochimiques

Info

Publication number
EP2502292A1
EP2502292A1 EP10785339A EP10785339A EP2502292A1 EP 2502292 A1 EP2502292 A1 EP 2502292A1 EP 10785339 A EP10785339 A EP 10785339A EP 10785339 A EP10785339 A EP 10785339A EP 2502292 A1 EP2502292 A1 EP 2502292A1
Authority
EP
European Patent Office
Prior art keywords
cell compartment
battery housing
elements
cell
energy storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10785339A
Other languages
German (de)
English (en)
Inventor
Tim Schaefer
Claus-Rupert Hohenthanner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Li Tec Battery GmbH
Original Assignee
Li Tec Battery GmbH
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 Li Tec Battery GmbH filed Critical Li Tec Battery GmbH
Publication of EP2502292A1 publication Critical patent/EP2502292A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • 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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—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
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • 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
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
    • 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
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • H01M6/5038—Heating or cooling of cells or 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • Battery housing for accommodating electrochemical
  • the present invention relates to a battery case for accommodating a plurality of electrochemical energy storage devices and a method of manufacturing this battery case.
  • a battery housing according to the invention surrounds, essentially with rigid walls, at least two electrochemical energy storage devices.
  • Such a battery housing preferably has a plurality of cell compartments but at least one cell compartment, wherein one or more electrochemical energy storage devices are arranged in a cell compartment.
  • the battery case is intended to absorb external stresses, such as a force to keep away from the electrochemical energy storage devices and to influence the temperature balance.
  • Previously used battery cases affect the temperature management of the energy storage devices through relatively complex spatial arrangements thereof, such as e.g. DE 10 2008 014 155 A1. This type of arrangement can be achieved by using partly complex housing elements such as e.g. DE 10 2007063 269 A1 can be achieved. Complex enclosures are difficult to manufacture mechanical components.
  • One aspect of the present invention is therefore to provide an easy-to-manufacture battery case for electrochemical energy storage devices.
  • the invention is therefore based on the object to provide a battery case available, which serves to increase the reliability of electrochemical energy storage devices. This is achieved according to the invention by the teaching of the independent claims. Preferred developments of the invention are the subject of the dependent claims.
  • a battery housing surrounds at least one but preferably a plurality of electrochemical energy storage devices.
  • the battery housing has at least one but preferably a plurality of cell compartments for receiving these electrochemical energy storage devices.
  • the surface of the battery case consists of four side surfaces, a bottom and a top surface, the side surfaces being formed by the cell compartment elements.
  • two electrochemical energy storage devices are arranged in a cell compartment.
  • an elastic compensation element is arranged between two electrochemical energy storage devices.
  • the cell compartments are formed by cell compartment elements.
  • a cell roof element forms at least one cell compartment, preferably two cell compartment elements form a cell compartment.
  • the cell compartments are in particular closable by a cover element.
  • An electrochemical energy storage device has at least one electrode stack, a current conductor and an enclosure.
  • An electrochemical energy storage device is provided to convert and store electrical energy into chemical energy. Conversely, the electrochemical energy storage device can convert the chemically stored energy back into electrical energy and release.
  • an electrochemical energy storage device is designed as a lithium-ion battery.
  • a cell roof element is to be understood as a thin-walled molded part which essentially defines a cell compartment.
  • a cellular element at least with a portion of its wall, forms at least a portion of the outer surface of this battery case, preferably a portion of the side wall of the battery case.
  • Under a side wall of the battery case the lateral boundary of the battery case is to be understood. This sidewall partially separates the contents of the battery case from the environment surrounding the battery case. This side wall is formed in particular by cell compartment elements.
  • a lid element according to the invention is understood to mean a component or a device which is intended to close the edge opening of a cell compartment.
  • a cell compartment has in particular one or preferably two edge openings.
  • a cover element preferably delimits the contents of the battery housing at least in regions relative to the environment surrounding the battery housing.
  • a cover element is provided to selectively direct a Temperiermediumsstrom to the cell compartment elements or derived from these.
  • a cover element for guiding the tempering medium has cavities.
  • cavities are in particular designed so that the cell compartment elements can not only be serially flowed through by a temperature control medium flow, but that the cell compartment elements can be flowed through in series, in particular by two or more temperature control medium flows.
  • the cell compartment elements can be flowed through by a predetermined design of these cavities in any order.
  • these cavities can be designed such that at least two or preferably all cell compartment elements are flowed through in parallel by the temperature control medium.
  • devices may be used in a cover element which are intended to actively conduct the tempering medium flow.
  • Active conduction of the temperature control medium flow is to be understood as meaning that predetermined cavities of the cover element are opened or closed, in particular as a function of external control commands or as a function of the tempering medium temperature.
  • thermostats or valves are provided for guiding the tempering medium flow.
  • An intermediate wall is to be understood as meaning a wall running within the battery housing which has cavities and / or recesses can. This wall preferably delimits the cell compartments at least in regions and is part of the cell compartment element.
  • connection element is to be understood as meaning a component which is intended to produce a positive connection between a cover element and at least one cell compartment element.
  • a latching connection according to the invention is a positive connection, which establishes a connection between a cover element and at least one cell compartment element without further components.
  • connection region is to be understood as meaning a specific section of a cell compartment element.
  • a first cell compartment element contacts a second cell compartment element.
  • a temperature control medium is to be understood as meaning a gaseous or liquid fluid.
  • the tempering medium is provided to supply the battery housing with an energy flow or dissipate it.
  • Under flow channels cavities in the battery housing are to be understood within the meaning of the invention. These cavities are flowed through as planned by the temperature control medium and can be located both in one or more cover elements and in one or more cell compartment elements.
  • the cell compartment elements are made of a metallic material or preferably of a fiber composite material.
  • This material preferably comprises aluminum as an essential constituent; other constituents in particular may be manganese, magnesium, copper, silicon, nickel, zinc and beryllium.
  • a fiber composite material the thermal conductivity is achieved, in particular, by a high proportion of thermally conductive fibers, which are in particular made from a material having the aforementioned heat conduction properties.
  • a fiber composite material has a fiber content of 30 to 95% by volume, preferably 40 to 80% by volume and more preferably 50 to 65% by volume.
  • the cell compartment elements are made of a hybrid material.
  • a hybrid material is to be understood as meaning a material which, in regions, consists of a plastic, in particular of a fiber-reinforced plastic and in some areas of a metallic material. In those areas in which the hybrid material consists of metal, it has in particular good thermal conduction properties, in those areas in which this material consists of fiber-reinforced plastic, it has in particular good heat-insulating properties.
  • this thermal conductivity is less than 0.5 W / (K * m), preferably less than 0.2 W / (K * m), and more preferably less than 0.1 W / (K * m), each at 20 ° C.
  • the temperature balance of the energy storage devices can be easily influenced and thus increase the reliability.
  • the cell compartment elements are to be understood as a thin-walled molded part produced by deformation.
  • this molded part consists of a, in forming manufacturing processes, such. Bending, deep drawing, pressing or punching, machined sheet metal.
  • This sheet has in particular a wall thickness of 0.3 mm - 2.2 mm, preferably from 0.8 mm - 1, 2 mm, preferably from 1, 0 mm.
  • the cell compartment elements are to be understood as a thin-walled, originally formed molded part. Forming manufacturing processes are in particular the continuous casting or extrusion.
  • a profiled cell compartment element has, at least in sections, a wall thickness of 1.0 mm - 3.0 mm, preferably of 1.8 mm - 2.5 mm and particularly preferably of 2.2 mm.
  • cell compartment elements made of a metallic material are in the contact areas to other cell compartment elements with a heat insulating layer, such. Microtherm, provided.
  • this thermal insulation layer is vapor-deposited or painted.
  • the heat insulation layer has a light color, preferably white.
  • the heat insulation layer is embodied in a mirror-like or reflective manner.
  • the cell compartment elements are to be understood as a thin-walled molded part, which is manufactured from a hybrid material.
  • the cellular compartment element is made of plastic, in particular at the points where it contacts another cell compartment element. In other areas, this cellular compartment element is made in particular of a metallic material.
  • This design of the cell compartment elements in particular the heat transfer from one cell compartment to another and thus the mutual heating of the electrochemical energy storage devices is made difficult and on the other hand favors the heat transfer to the environment surrounding the battery case.
  • this plastic region of the cell compartment element is at least partially, in particular in the region facing the electrochemical energy storage device, with a heat conducting layer, e.g. a thermally conductive foil, coated.
  • a heat conducting layer e.g. a thermally conductive foil
  • this plastic region is vapor-deposited with a heat-reflecting layer.
  • This heat-reflecting layer is especially white or specular.
  • This heat-conducting layer has a temperature-conducting connection, in particular with the metallic region of the cell compartment element. By means of this heat-conducting layer, in particular a temperature current is dissipated from the electrochemical energy storage device and conducted to the metallic region of the cell compartment element.
  • the temperature conduction of the cell compartment elements is improved and thus the operational safety of the electrochemical energy storage devices increases.
  • a cell compartment element has a connection region, which is intended to produce a positive connection with a cover element.
  • a positive connection exists between a cover element and a plurality of cell compartment elements, preferably between a cover element and all cell compartment elements. Due to the selected type of connection between the lid and cell compartment elements, the cell compartment contents are protected from external influences and thus increase the reliability.
  • an additional connecting element is provided for producing this positive connection.
  • a connecting element is preferably a substantially elongated component.
  • This connecting element is preferably connected to the battery housing in a materially bonded manner; in particular, the connecting element is glued to the battery housing at least in regions.
  • a cohesive connection thus arises between the connecting element, the cover element and the cell compartment element. Due to the particularly stressable design of this connection area, the reliability is increased.
  • the positive connection between a cover element and a cell compartment element 1 is produced without additional connecting elements.
  • a latching connection in particular connects a cover element with one or preferably with all cell compartment elements.
  • Such a latching connection is preferably a frictional or particularly preferably positive connection.
  • the particularly simple design of this cover element connection area contains only a few sources of errors during assembly and production, thus increasing the safety of the battery housing.
  • two adjacent cell compartment elements have a common connection area.
  • these cell compartment elements contact each other in this connection area.
  • the cell compartment elements in this connection region are integrally connected to one another.
  • such a cohesive connection is produced by gluing.
  • the cell compartment elements in this connection area are positively connected to each other.
  • a temperature control medium is present in a battery housing.
  • This tempering medium is intended to conduct an energy flow.
  • this energy flow is derived to or from a cover element.
  • this energy flow is derived from at least one cell compartment element or from it.
  • the tempering medium flows through at least one cell compartment element and at least one cover element.
  • a plurality of battery housing can be connected by the Temperiermediumsan say, thus easily a plurality of battery housing flows through the temperature control.
  • a cell compartment element has at least one or more flow channels.
  • two cell compartment elements form at least one flow channel.
  • These flow passages are intended to be flowed through by a temperature control medium.
  • such throughflow channels are evacuated between two cell compartment elements and are not flowed through.
  • the pressure in such a gap is preferably 0.9 * 10 5 Pascal to 0 * 10 5 Pascal preferably 0.8 * 10 5 Pascal to 0.5 * 10 5 Pascal and more preferably 0.7 * 10 5 Pascal to 0 , 6 * 10 5 Pascal.
  • these flow-through channels are provided with a phase change material (PCM) which is present as solid at ambient temperature, e.g. a salt or a paraffin, filled.
  • PCM phase change material
  • this phase change material changes its state of aggregation and liquefies.
  • cell compartment elements are preferably produced by a suitable original or transforming manufacturing process.
  • these cell compartment elements for producing the battery case relative to each other, brought into a predetermined position.
  • at least one of these cell compartment elements is then connected to at least one cover element.
  • contact points between the cover element and cell compartment elements which are intended to be flowed through by a temperature control, fluid-tight manner.
  • Such a connection may in particular be provided by elastic sealing means, e.g. O-rings, sealing lips or by a material connection by means of sealing pastes or sealing strips are produced.
  • Hybrid material a metallic insert inserted into a mold and connected in its edge region cohesively with plastic to form a cell compartment element.
  • this insert has a structure which preferably has recesses in order to form a particularly strong connection with the plastic region of the cell compartment element.
  • a cellular compartment element is materially connected to a cover element, preferably by gluing or welding.
  • FIG. 1 shows a battery housing for electrochemical energy storage devices, comprising a plurality of cell compartment elements and two cover elements, wherein connections for a temperature control medium are provided on a cover element.
  • 2 two cell compartment elements with electrochemical Energy storage devices.
  • the cell compartment elements are made of sheet metal and form a positive connection in their connection area.
  • In the intermediate between two electrochemical energy storage devices is an elastic
  • cell compartment elements two different embodiments of cell compartment elements. These cell compartment elements are designed as extruded profiles. In Figure 3 b form two cell compartment elements a double wall, which can be traversed by a temperature control.
  • FIG. 4 shows two different configurations for cell compartment elements, which are made of sheet metal.
  • 4a a tempering medium line is inserted into the cell compartment element and it can be flowed through by a temperature-control medium.
  • 4b shows a cell compartment element with a plurality of cooling fins, which are intended to enlarge the surface of the cell compartment element and thus to improve the heat conduction.
  • 5 two different embodiments of cell compartment elements, which are made of extruded profiles. In Fig.5a flow channels are introduced into the cell compartment element and these channels can be traversed by a temperature control.
  • FIG. 5 b shows a cell compartment element with a plurality of cooling ribs, which are intended to enlarge the surface of the cell compartment element and thus to improve the heat conduction.
  • connection is made by a connecting element.
  • This connecting element is glued to the cover element and the cell compartment elements.
  • Cover element wherein the connection is made by a latching connection. 8 shows different possibilities for flow through cell compartment elements, the temperature control medium flow being controlled by the cover element.
  • FIG. 9 shows a cell compartment element made of a hybrid material.
  • FIG. 1 shows a battery housing for accommodating electrochemical energy storage devices 15.
  • This battery housing has two cover elements 2 and a plurality of cell compartment elements 1.
  • two terminals 3 are introduced for a tempering in a cover element 2.
  • the temperature control medium flows into the cover element 2 through one of these connections. From the cover element 2, the temperature control medium flows back through the individual cell compartment elements 1 to the second connection 3.
  • two cell compartment elements 1 a are shown made of sheet metal. These cell compartment elements 1a together form a connection area 5a. In this connection region 5 d, the two cell compartment elements 1 a are positively connected to each other.
  • the cell compartments 4 are separated by an intermediate wall 13.
  • In the cell compartments 4 are each two electrochemical energy storage devices 15. These energy storage devices 15 are pressed by elastic compensation elements 16 against the cell tray element 1, thereby creating a temperature-conducting connection between cell compartment element 1 and energy storage device 15th
  • FIG 3a two cell compartment elements 1 b are shown. These cell compartment elements 1 b are made of a continuous casting profile. The two cell compartment elements 1 b form a common connection area 5b with each other. In this connection region, the cell compartment elements 1 b are positively connected with each other.
  • Figure 3b shows two cell compartment elements 1 c, which are made of a continuous casting profile.
  • the two cell compartment elements 1 c form a common Connection area 5c with each other.
  • a double-wall cavity 6 c is created between them.
  • This cavity 6c is intended to be flowed through by a temperature control medium.
  • the two cell compartment elements le are fluid-tightly connected to one another in their connection region 5c.
  • an elastic region of the cell compartment element 4 results.
  • This elastic region of the cell compartment elements 1 c eliminates the elastic compensation element 16 between the energy storage devices 15.
  • FIG. 4 a shows a cell compartment element 1 d, which is produced from sheet metal.
  • This cell compartment element 1d has a shape, so that a tempering medium line 6d can be introduced into the cell compartment element 1d.
  • This Temperiermediums Koch 6d is intended to be traversed by a temperature control.
  • FIG. 4b shows a cell compartment element 1e which is produced from sheet metal.
  • This cell compartment member 1e has a plurality of cooling fins 7e. Through these cooling fins 7e, the surface of the cell compartment element 1 e is increased, thus a better temperature conduction is achieved.
  • FIG. 5a shows a cell compartment element 1f which is produced from a continuous casting profile.
  • flow channels 6 f are introduced. These recesses 6f are intended to be flowed through by a temperature control medium. These flow channels 6f can also be located in the intermediate walls 12.
  • the flow channels 6f in the cell compartment elements 1f may also be in communication with the cover flow channels 14 (not shown).
  • FIG. 5b shows a cell compartment element 1f, which is produced from a continuous casting profile.
  • This cell compartment member 1f has a plurality of cooling fins 7f. These are intended to enlarge the surface of the cell compartment element 1f. By enlarging the surface, a better temperature conduction is achieved.
  • the cooling fins 7f are advantageously aligned so that they are from an artificially generated or by, by Heating the ambient air resulting, air flow can be flowed in the rib longitudinal direction.
  • FIG. 6 shows the connection region 9 between a cover element 2 and cell compartment elements 1.
  • the lid member 2 has a series of ZellenfachausEnglishungen 10. Cellular elements 1 engage in these recesses 10.
  • the cell compartment elements 1 and the cover element 2 are connected to one another in a form-fitting manner by a connecting element 8.
  • This connecting element 8 is adhesively bonded to the Zellenfachele- elements 1 and the cover element 2 by gluing.
  • the connecting element 8 may be fixed by fastening means such as e.g. Screws, rivets or pins are connected to the cover element 2 or the cell compartment elements 1.
  • FIG. 7 illustrates the connection region 9 between a cover element 2 and cell compartment elements 1.
  • a special shaping of the cell compartment elements is provided.
  • the cell compartment elements have a snap area 11, which can be deformed elastically.
  • the cover element 2 has a detent portion 17, in which this snap region 11 of the cell compartment element 1 can engage.
  • the latching connection can also be produced by additional spring and auxiliary elements.
  • FIG. 8 shows various possibilities for the flow through the cell compartment elements.
  • FIG. 8 a shows a serial flow through 3 cell compartment elements.
  • the Temperiermediumsstrom 18 enters a cover element 2 and is directed by this to an outer cell compartment element 1.
  • the temperature control medium flows from here starting a cell compartment element 1 after another.
  • the Temperiermediumsstrom 18 exits at a second cover element 2 again.
  • FIG. 8b shows a further embodiment for the flow through a plurality of cell compartment elements 1.
  • the Temperiermediumsstrom is first through the lid member 2 and is passed to a cell compartment element 1. This is at least partially surrounded by other cell compartment elements 1. From this flowed through first Cell compartment element 1 divides the Temperiermediumsstrom 18 in a second cover element 2 and then simultaneously flows through (parallel) two other cell compartment elements 1. The Temperiermediumsstrom 18 exits from the same cover element 2, in which he has previously entered.
  • FIG. 8c shows a further embodiment for the flow through a plurality of cell compartment elements 1.
  • a cover element 2 has tempering medium valves 19. With these tempering medium valves 19, the tempering medium flow 18 can be directed to individual cell compartment elements 1. In particular, not all cell compartment elements 1 must be controllable by a separate tempering medium valve 19.
  • These Temperiermediumsventile are in particular thermostats. Such thermostats release the tempering medium flow 18 to cell compartment elements 1 or shut it off, or restrict the flow rate. Such thermostats operate as a function of temperature, e.g. of the tempering medium flow 18.
  • FIG. 9 shows an embodiment of a cell compartment element 1 h made of a hybrid material.
  • the heat conduction from one cell compartment element to the other is prevented by the heat-insulating intermediate wall 12h made of plastic (FIG. 9a).
  • the heat conduction from a cell compartment element 1 h to the environment surrounding the cellular compartment element is promoted by the side wall 13 h consisting of a metallic material.
  • the side wall 13h is in temperature-conducting connection with the heat-conducting foil 20.
  • the heat-conducting foil 20 carries off a temperature flow from the surface of the electrochemical energy storage device and delivers it to the side wall 13h. This effectively prevents mutual heating of electrochemical energy storage devices in adjacent cell compartments.
  • FIG. 9b shows different possibilities for configuring the edge region of the side wall 13h.
  • the recesses in the side wall 13h lead to a better connection of the metallic side wall 13h with the intermediate wall 12h made of plastic.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Un boîtier de batterie comprend au moins un dispositif accumulateur d'énergie électrochimique et, de préférence, une pluralité d'accumulateurs d'énergie électrochimiques. Le boîtier de batterie présente, pour la réception de ces dispositifs accumulateurs d'énergie électrochimiques, au moins un compartiment de cellules de batterie et, de préférence, une pluralité de compartiments de cellules de batterie. La surface du boîtier de batterie comprend quatre faces latérales, une face de fond et une face de couvercle, les faces latérales étant formées par les éléments des compartiments de cellules. De préférence, deux dispositifs accumulateurs d'énergie électrochimiques sont disposés dans un compartiment de cellules. En particulier, un élément compensateur élastique est disposé entre deux dispositifs accumulateurs d'énergie électrochimiques. Les compartiments de cellules sont formés par des éléments de compartiment de cellules. En particulier, un élément de compartiment de cellules forme au moins un compartiment de cellules, de préférence, deux éléments de compartiment de cellules forment un compartiment de cellules. Les compartiments de cellules peuvent généralement être fermés par un élément couvercle.
EP10785339A 2009-11-16 2010-11-15 Boîtier de batterie pour la réception de dispositifs accumulateurs d'énergie électrochimiques Withdrawn EP2502292A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009053506A DE102009053506A1 (de) 2009-11-16 2009-11-16 Batteriegehäuse zur Aufnahme von elektrochemischen Energiespeichereinrichtungen
PCT/EP2010/006936 WO2011057815A1 (fr) 2009-11-16 2010-11-15 Boîtier de batterie pour la réception de dispositifs accumulateurs d'énergie électrochimiques

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EP2502292A1 true EP2502292A1 (fr) 2012-09-26

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US (1) US20130130078A1 (fr)
EP (1) EP2502292A1 (fr)
JP (1) JP2013511116A (fr)
KR (1) KR20120099722A (fr)
CN (1) CN102598354A (fr)
BR (1) BR112012011216A2 (fr)
DE (1) DE102009053506A1 (fr)
WO (1) WO2011057815A1 (fr)

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DE102009053506A1 (de) 2011-05-19
KR20120099722A (ko) 2012-09-11
US20130130078A1 (en) 2013-05-23
JP2013511116A (ja) 2013-03-28
WO2011057815A1 (fr) 2011-05-19
CN102598354A (zh) 2012-07-18
BR112012011216A2 (pt) 2016-07-05

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