WO2011012200A1 - Batterie et procédé de production d'une batterie - Google Patents

Batterie et procédé de production d'une batterie Download PDF

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Publication number
WO2011012200A1
WO2011012200A1 PCT/EP2010/004036 EP2010004036W WO2011012200A1 WO 2011012200 A1 WO2011012200 A1 WO 2011012200A1 EP 2010004036 W EP2010004036 W EP 2010004036W WO 2011012200 A1 WO2011012200 A1 WO 2011012200A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
diffusion barrier
barrier element
battery
foils
Prior art date
Application number
PCT/EP2010/004036
Other languages
German (de)
English (en)
Inventor
Dirk Schröter
Jens Meintschel
Rainer Kaufmann
Arnold Lamm
Claus-Rupert Hohenthanner
Jörg Kaiser
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 WO2011012200A1 publication Critical patent/WO2011012200A1/fr

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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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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
    • 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
    • H01M10/0472—Vertically superposed cells with vertically disposed plates
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/121—Organic material
    • 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
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/191—Inorganic material
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/545—Terminals formed by the casing of 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—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
    • 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

Definitions

  • the invention relates to a battery having a plurality of bipolar compassionflachzellen, according to the vaguely defined in the preamble of claim 1.
  • Art also relates to a method for producing a battery with bipolar compassionflachzellen.
  • the invention relates to the use of such a battery or a battery obtained by the method for manufacturing.
  • Batteries having a configuration of a plurality of battery cells are known from the general state of the art.
  • the individual battery cells can be constructed as termed by conventionflachzellen.
  • Each of the individual frame flat cells is formed of an insulating frame and two electrically conductive cladding sheets on each side of the electrically insulating frame.
  • the so-called bipolar design is often found. This means that the
  • Electrochemically active materials of the frame flat cells are connected to one pole of the frame flat cell.
  • the poles are on the outer surface of the frame flat cell.
  • Led housing for example in the form of the cladding on each of the flat sides of the compassionflachzelle.
  • This structure is known in principle from the non-prepublished German application with the file number DE 10 2007 063 181.4.
  • frame flat cells are described, which are provided with two cladding sheets, so that each of the frame flat cells forms an independent unit by itself, and that a plurality of such frame flat cells can be stacked into a battery.
  • the battery with the bipolar compassionflachzellen then has as a finished cell stack of the individual compassionflachzellen at one end of the cell stack on the one pole and at the other end of the cell stack on the other pole.
  • a cooling device is usually also provided, which is arranged, for example, on one of the longitudinal sides of the cell stack.
  • the heat generated in the frame flat cells can then be dissipated via the cladding sheets of the frame flat cells, which conduct this heat into the region of the cooling device, for example a cooled plate, on one of the longitudinal sides of the battery.
  • the typical application for such batteries is, for example, in electrical, hybridized or partially hybridized powertrains in means of transport, such as e.g.
  • Each of the individual frame flat cells is thus constructed of an insulating frame and two electrically conductive cladding sheets on each side of the electrically insulating frame, wherein one of the cladding sheets may optionally be used by two of the frame flat cells.
  • the active materials are arranged, in particular in the form of anode foils and cathode foils, which are each separated from a separator and electrically insulated from one another.
  • these films can be alternately stacked with respect to their polarity, with one separator each being placed between the films. The electrode stack is then inserted into the frame.
  • the chairflachzelle is then closed in the manufacturing process according to the prior art and the anode or cathode films can be welded to the respective Hüllblech, as described for example by the non-prepublished German application with the file number DE 10 2007 063 181.4.
  • the frame of such frame flat cells is typically called
  • the frame or at least parts thereof are made of a thermoplastic material, so that the cladding sheets or at least one of the cladding sheets can be connected to the frame by means of a hot pressing method and the frame flat cell can thus be closed.
  • the problem lies in the fact that through the frame of the plastic on the one hand
  • Water molecules can diffuse into the interior of the compassionflachzelle, so that the performance of the cell is reduced over time and the high water content
  • the diffusion barrier element is formed, for example, as a metallic insert, which is encapsulated in accordance with the plastic of the frame.
  • Injection mold via corresponding spacers such as holding pins used or the like, must be realized in order to ensure safe encapsulation of the
  • the structure has the disadvantage that it requires a complicated injection mold and that by the additional
  • characterizing part of claim 1 A method for manufacturing a battery having the features in the characterizing part of claim 10, the
  • the battery according to the invention thus has the diffusion barrier element in the frame, wherein the diffusion barrier element is also connected to one of the cladding sheets.
  • a particularly favorable and advantageous development of the battery according to the invention further provides that the diffusion element of a metallic material,
  • diffusion barrier element and cladding sheet can both be made of aluminum, so that they can either be formed in one piece or can be easily connected to each other by cohesive joining, such as welding or the like.
  • Diffusion barrier element is mechanically designed so that it forms a positive connection with the material of the frame.
  • the diffusion barrier element is mechanically formed such that it forms this connection by a positive fit
  • corresponding regions of the diffusion barrier element with a defined roughness, with undercuts or partial openings, which do not significantly increase the diffusion cross-section may be provided.
  • a form-locking clamping of the plastic material of the frame with the diffusion barrier element and thus ultimately also with the cladding sheet connected to the diffusion barrier element is achieved.
  • Frame flat cells provide that for each of the frame flat cells, which are later stacked to the battery, in a first step, a diffusion barrier element is connected to or formed on a first cladding sheet.
  • the diffusion barrier element is thus firmly connected to the Hüllblech or formed integrally therewith. This results in a unit of the first cover plate and the diffusion barrier element, which can be handled as such unit in the further production process together.
  • a frame is then connected to the first
  • Diffusion barrier element provided molded cladding.
  • This molding can be done in particular by injection molding or injection compression, so that again a firmly connected unit of the first cladding, the diffusion barrier element and the frame is formed.
  • an electrode stack of anode foils, separator foils and cathode foils is then positioned in the subsequent process step.
  • the compassionflachzelle is then closed with the second Hüllblech.
  • the second cladding sheet for example, glued or hot pressing with the plastic material of the frame, which must then be at least partially formed thermoplastic, are connected.
  • the diffusion barrier element is connected to the first cladding sheet or formed thereon.
  • Hüllblech done by a cohesive joining.
  • methods such as resistance-pressure welding, projection welding or the like can be used here. This allows in a simple and easily manageable production process a secure, solid and durable bonding of the Diffusionsssperrelements with the first Hüllblech.
  • the manufacturing method according to the invention allows the cost-effective construction of a battery from the corresponding frame flat cells, which can be made simple, inexpensive and robust.
  • the battery can be used particularly cheap and efficient. Due to the advantages already mentioned above, it is predestined for this use, in particular in a training as a lithium-ion battery.
  • FIG. 1 shows an exploded view of a bipolar frame flat cell
  • Figure 2 is an exploded view of a Diffusionsssperrelements and a first
  • FIG. 3 shows the illustration of FIG. 2 in the connected state of
  • FIG. 4 is a sectional view through a compassionflachzelle according to the invention
  • FIG. 5 shows an enlarged detail of an edge region of the illustration in FIG. 4
  • FIG. 6 shows the illustration analogous to FIG. 5 in a further embodiment
  • Figure 7 is a plan view of a first cladding in another possible
  • Figure 8 is a sectional view of an enlarged detail of Fig. 7 with
  • FIG. 1 shows a bipolar frame flat cell 1 in an exploded view.
  • the later compassionflachzelle 1 consists of a first Hüllblech 2, which forms, for example, the Hüllblech 2 of the anode side.
  • This first cladding sheet 2 is separated by a frame 3 from a second cladding sheet 4, which in this example would be the cladding sheet 4 of the cathode side.
  • Both enveloping sheets 2, 4 have corresponding folds 2a, 4a on one side. These bends 2a, 4a are designed so that they are adjacent to one another on one side of the later frame flat cell 1, but in such a way that they do not come into electrical contact with one another.
  • the purpose and the function of the folds 2a, 4a of the respective cover plates 2, 4 consists in that they are typically arranged on the side on which the
  • Frame flat cell 1 later, when a plurality of the frame flat cells 1 are stacked into a battery, generally via an electrically insulating, thermally conductive foil or potting compound, with a cooling device, such as a cooling plate in
  • the electrochemically active material is attached inside the area surrounded by the frame 3, inside the electrochemically active material is attached.
  • This consists of an electrode stack 5 with cathode foils 6, separators 7 and anode foils 8.
  • the anode and cathode foils 8, 6 are formed from aluminum and copper or corresponding alloy with aluminum and copper.
  • the electrode stack 5 is shown again in detail. As can be seen there, this consists of several of the cathode foils 6, which via the electrical
  • insulating separator 7, which is preferably also formed as a film, are separated from the anode foils 8 stacked.
  • the anode foils 8 and cathode foils 6, each separated from the separator 7, are alternately stacked.
  • the cathode foils 6 in a first connection region 5a of the electrode stack 5 are correspondingly connected to the cladding plate 4 of the cathode side. This can be done for example by welding, as it is known from the older DE 10 2007 063 181.4 of the applicant.
  • the structure on the anode side is comparable. Again, the anode foils are 8 to a
  • Connection area 5b summarized, which is then connected to the anode-side cladding sheet 2, for example, welded.
  • the frame 3 itself, which may be formed, for example, from a thermoplastic material and molded onto the first cladding sheet 2, closes the later frame flat cell 1 tightly against the environment. Due to the thermoplastic material of the frame, however, such a seal by the frame 3 is not possible diffusion-tight. Due to the material of the frame 3 molecules of the electrolyte can diffuse to the outside or water molecules from outside to inside. This is especially true for the elevated temperatures which such a battery in operation, for example in their training as a lithium-ion battery, constantly
  • a diffusion barrier element 9 is provided in the construction of the frame 3.
  • this diffusion barrier element 9 is shown explicitly, while it is in the representation of Figure 1 in the interior of the frame 3 and therefore can not be seen.
  • Diffusion barrier element 9 is now formed so that it covers most of the
  • the diffusion barrier element 9 can be formed of different materials. In principle, suitable plastics, composite materials or the like would also be conceivable here, which may optionally also have a corresponding coating. Since the diffusion barrier element 9 is later completely encased by the material of the frame 3, it does not have to have any properties which are necessary when closing the frame flat cell 1, but which of course must have the frame 3 itself. It is therefore relatively free in the selection of the material for the diffusion barrier element 9. Particularly efficient and inexpensive is the formation of the Diffusionsssperrelements 9 of a
  • the Hüllbleche 2, 4 are usually made of aluminum or a comparable material, so that there is the possibility here, very easy and efficient to connect the diffusion barrier element 9 with the first Hüllblech 2.
  • the unit comprising diffusion barrier element 9 and cladding sheet 2 has the diffusion barrier element 9 fixedly connected to the first cladding sheet 2.
  • this connection can be done for example by gluing.
  • a metal diffusion barrier element 9 in particular a diffusion barrier element 9 made of aluminum, it is advantageous to secure it to the first cover plate 2 by way of material-fit joining.
  • the connection can then be realized preferably by resistance welding, projection welding, but also by laser welding or the like.
  • the resistance welding such as a resistance pressure welding, has the advantage that it can connect different materials, so that, for example, a cladding sheet of a ferrous or steel-containing material with the
  • Diffusion barrier element 9 could be made of aluminum.
  • FIG. 4 shows a cross section through a frame flat cell 1
  • the diffusion barrier element 9 is sheathed by the plastic material of the frame 3 on all the sides where it is not connected to the first cover plate 2.
  • this is absolutely necessary since, in the case of a metallic diffusion barrier element 9, this has the potential of the first cladding sheet 2.
  • the plastic material of the frame 3 thus serves between the diffusion barrier element 9 and the second cover plate 4 of an electrical insulation between the second Hüllblech 4 and the potential of the first Hüllblechs 2.
  • the material of the frame 3 can be melted in this area when closing the compassionflachzelle 1, For example, when the second cover plate 4 is connected by hot pressing with the plastic material of the frame 3.
  • Electrode stack 5 can still be seen in detail with its cathode foils 6, its anode foils 8 and the separators or separator foils 7. Moreover, in the
  • welded connection which is indicated here as a weld 10, connected to the first envelope 2.
  • a weld 10 In the production of the frame flat cell 1, by connecting the diffusion barrier element 9 to the first enveloping sheet 2, it is now possible to produce a solid and easy-to-use unit from these two elements. Such a unit can then, for example, in an injection or
  • Plastic material is formed accordingly. This is possible in one step without the need for holding pins, a two-step process or the like. This molding of the frame 3 then allows a firm connection between the unit
  • the diffusion barrier element 9 has an opening 11 in order to enable a positive connection between the diffusion barrier element 9 and the material of the frame 3.
  • other mechanical means would be suitable which facilitate a positive connection, for example
  • the electrode stack 5 is then positioned in the frame 3.
  • the individual foils 6, 8 of the electrode stack can be welded together in each case in the region of the connection regions 5a, 5b.
  • the corresponding connection region 5b is then electrically conductively connected to the first cladding sheet, which can also be done by welding.
  • the compassionflachzelle 1 is closed by the second Hüllblech 4, wherein also before closing, an electrically conductive connection of the other terminal portion 5a of the electrode stack 5 can be carried out with the further Hüllblech 4.
  • connection regions 5a, 5b with respect to the electrode stack 5 Due to the flexibility of the connection regions 5a, 5b with respect to the electrode stack 5, the structure can then remain unfolded in the form of a Z, so that the welding of the connection region 5a to the second enveloping plate 4 becomes possible. Thereafter, the cover plate 4 is positioned on the frame 3 and connected thereto. This bonding can also be done by gluing or the like. Because of the frame 3, which is typically made of thermoplastic material or at least partially made of thermoplastic material, it is particularly preferable to use a hot pressing process in which the second enveloping sheet 4 in the area in which it rests on the frame 3 is heated accordingly and pressed against the frame , The plastic material of the frame 3 will then at least partially melt and connect to the Hüllblech 2.
  • Diffusion barrier member 9 most of the cross section of the frame 3 between the interior of the compassionflachzelle 1 and the exterior. Although this does not completely prevent diffusion, since small cross-sectional areas remain in which only plastic is present, it is however largely restricted and reduced to a tolerable minimum.
  • the electrode stack 5 itself can be impregnated with the necessary electrolyte even before being placed in the area inside the frame 3. It is alternatively or additionally also conceivable, the electrolyte after completion of the Frame flat cell 1 via an opening in the frame 3 and the
  • the diffusion barrier element 9 in the interior of the compassionflachzelle 1 and then close the opening.
  • Such an opening can be introduced, for example, by drilling or the like after the manufacture of theticianflachzelle 1 in this.
  • the diffusion barrier element 9 has a corresponding opening
  • the injection mold, in which the frame 3 is molded has a corresponding mandrel or the like, which ensures that in the region of the opening in the diffusion barrier element 9 also in frame 3 an opening remains.
  • this opening can be welded, for example, by means of friction welding or ultrasonic welding
  • the diffusion barrier element 9 integral with the first Hüllblech 2
  • the representation of Figure 7 is such a possibility shown in the Hüllblech 2 is integrally formed with the diffusion barrier element 9.
  • the diffusion barrier element is produced by bending over parts of the enveloping sheet 2 and thus formed from the material of the enveloping sheet 2. Due to the technical
  • the cladding sheet 2 can not be rectangular, but has no material in the respective corners. However, since this is not necessary for the functionality of the frame flat cell 1, this area can be filled in appropriately with the plastic of the frame 3, so that a rectangular frame flat cell 1 nevertheless arises. In addition, by folding in the
  • Frame flat cells 1 for this cost to produce. They can then be used in large numbers, for example for hybridized or electric vehicles, which can use the batteries for storing or caching of electrical energy. Due to the high energy density to be achieved, the battery or the frame flat cells 1 can preferably be formed in lithium-ion technology.

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

Abstract

L'invention concerne une batterie comportant une pluralité d'éléments plats de bâti (1) bipolaires empilés pour former la batterie. Chaque élément plat (1) présente deux tôles extérieures (2, 4). Les deux tôles extérieures (2, 4) sont séparées l'une de l'autre par un bâti (3) électro-isolant. Un empilement d'électrodes (5) composé de films anodiques (8), de films séparateurs (7) et de films cathodiques (6) est disposé entre les tôles extérieures (2, 4). Selon l'invention, le bâti (3) est doté d'un élément de blocage de diffusion (9). A cet effet, ledit élément de blocage de diffusion (8) est relié à une des tôles extérieures (2). L'invention concerne également un procédé pour produire une batterie de ce type.
PCT/EP2010/004036 2009-07-31 2010-07-03 Batterie et procédé de production d'une batterie WO2011012200A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009035455A DE102009035455A1 (de) 2009-07-31 2009-07-31 Batterie und Verfahren zum Herstellen einer Batterie
DE102009035455.7 2009-07-31

Publications (1)

Publication Number Publication Date
WO2011012200A1 true WO2011012200A1 (fr) 2011-02-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/004036 WO2011012200A1 (fr) 2009-07-31 2010-07-03 Batterie et procédé de production d'une batterie

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DE (1) DE102009035455A1 (fr)
WO (1) WO2011012200A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012018062A1 (de) 2012-09-13 2014-03-13 Daimler Ag Verfahren zum Befüllen einer elektrochemischen Einzelzelle mit einer elektrochemisch aktiven Substanz und Verschließen der elektrochemischen Einzelzelle
DE102013021133A1 (de) 2013-12-13 2015-06-18 Daimler Ag Einzelzelle, Verfahren zur Herstellung einer Einzelzelle und elektrische Batterie
CN108269960A (zh) * 2017-01-03 2018-07-10 神华集团有限责任公司 一种电池单体及其制造方法和电池组

Citations (7)

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Publication number Priority date Publication date Assignee Title
FR2276704A1 (fr) * 1974-06-27 1976-01-23 Accumulateurs Fixes Batterie de generateurs electrochimiques
US5688615A (en) * 1995-11-03 1997-11-18 Globe-Union, Inc. Bipolar battery and method of making same
US20030054244A1 (en) * 2001-09-19 2003-03-20 Lars Fredriksson Bipolar battery, a method for manufacturing a bipolar battery and a biplate assembly
WO2003026042A1 (fr) * 2001-09-20 2003-03-27 Nilar Europe Ab Batterie bipolaire et ensemble biplaque
WO2009018942A1 (fr) * 2007-08-06 2009-02-12 Daimler Ag Elément individuel pour une batterie ainsi que son procédé de fabrication
WO2010063421A2 (fr) * 2008-12-02 2010-06-10 Daimler Ag Batterie, en particulier batterie de véhicule
WO2010087963A1 (fr) * 2009-01-27 2010-08-05 G4 Synergetics, Inc. Confinement à volume variable pour dispositifs de stockage d'énergie

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FR2276704A1 (fr) * 1974-06-27 1976-01-23 Accumulateurs Fixes Batterie de generateurs electrochimiques
US5688615A (en) * 1995-11-03 1997-11-18 Globe-Union, Inc. Bipolar battery and method of making same
US20030054244A1 (en) * 2001-09-19 2003-03-20 Lars Fredriksson Bipolar battery, a method for manufacturing a bipolar battery and a biplate assembly
WO2003026042A1 (fr) * 2001-09-20 2003-03-27 Nilar Europe Ab Batterie bipolaire et ensemble biplaque
WO2009018942A1 (fr) * 2007-08-06 2009-02-12 Daimler Ag Elément individuel pour une batterie ainsi que son procédé de fabrication
WO2010063421A2 (fr) * 2008-12-02 2010-06-10 Daimler Ag Batterie, en particulier batterie de véhicule
WO2010087963A1 (fr) * 2009-01-27 2010-08-05 G4 Synergetics, Inc. Confinement à volume variable pour dispositifs de stockage d'énergie

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