WO2014040677A2 - Élément individuel d'une batterie - Google Patents

Élément individuel d'une batterie Download PDF

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Publication number
WO2014040677A2
WO2014040677A2 PCT/EP2013/002395 EP2013002395W WO2014040677A2 WO 2014040677 A2 WO2014040677 A2 WO 2014040677A2 EP 2013002395 W EP2013002395 W EP 2013002395W WO 2014040677 A2 WO2014040677 A2 WO 2014040677A2
Authority
WO
WIPO (PCT)
Prior art keywords
single cell
cell
electrode
housing part
housing
Prior art date
Application number
PCT/EP2013/002395
Other languages
German (de)
English (en)
Other versions
WO2014040677A3 (fr
Inventor
Jens Meintschel
Dirk Schröter
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 WO2014040677A2 publication Critical patent/WO2014040677A2/fr
Publication of WO2014040677A3 publication Critical patent/WO2014040677A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • 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 of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
    • 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 of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • 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
    • H01M10/04—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
    • 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 of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/121—Organic material
    • 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 single cell for a battery comprising at least one
  • the electrode conductor arrangement comprises a plurality of electrode conductors with a separator in between and at least one arrester disk.
  • the electrode ends of the electrode conductors are folded and / or compressed in a plane extending transversely to the direction of extent in order to form a contact surface.
  • the electrode conductor order is produced by laser-pulsed adhesion of the at least one arrester disc to the contact surface, wherein the
  • Pulse power and the pulse length are set accordingly.
  • a polymer lithium-ion battery cell is known from US Pat. No. 6,387,566 B1.
  • the battery cell has a housing made of aluminum foil, wherein both surfaces are coated with a thin layer of an electrically insulating polymer. Opposing portions of the housing are not coated with the polymer so that these portions form the electrical poles of the battery cell. Inner sides of the housing are also not coated in the corresponding sections with the polymer, so that electrode layers are electrically contacted with the electric pole forming portions of the housing of the battery cell.
  • the invention has for its object to provide a comparison with the prior art improved single cell for a battery.
  • a single cell for a battery comprises at least one cell housing, in which an electrode foil arrangement is arranged, wherein according to the invention it is provided that the electrode foils of a first polarity are electrically conductively connected to at least one first housing part and the electrode foils of a second polarity are electrically conductively connected to a second end Housing part are connected, wherein the areas of the connection with the housing parts are opposite.
  • Electrode foils of different polarity are Electrode foils of different polarity.
  • FIG. 1 is a schematic perspective view of an exploded view of a frame flat cell cell running
  • FIG. 2 is a schematic perspective view of the single cell according to FIG. 1 in the mounted state
  • Fig. 3 shows a schematic perspective view of an embodiment of a
  • 4 shows schematically a longitudinal section of the frame flat cell
  • 5 schematically shows a cross section of the frame flat cell
  • FIG. 6 is a schematic sectional view of a contacting region of FIG.
  • FIG. 7 is a schematic sectional view of the contacting region of FIG.
  • Electrode foil assembly with the housing part after the welding process is
  • FIG. 8 is a schematic sectional view of the contacting region of FIG.
  • FIG. 9 is a schematic perspective view of an exploded view of FIG.
  • Electrode foil arrangement with two collector plates is Electrode foil arrangement with two collector plates
  • FIG. 10 is a schematic sectional view of the contacting region of FIG.
  • Electrode sheets with the housing part and a collector plate Electrode sheets with the housing part and a collector plate
  • FIG. 11 is a schematic sectional view of the contacting region with a bimetal as a collector plate
  • FIG. 13 is a schematic perspective view of an exploded view of an alternative embodiment of a single cell
  • FIG. 14 schematically shows a first sectional view of the single cell according to FIG. 13 and FIG
  • FIG. 15 schematically shows a second sectional view of the single cell according to FIG. 14.
  • Figures 1 and 2 show a single cell 1 for a battery, not shown, in particular a vehicle battery for an electric vehicle, hybrid vehicle or fuel cell powered vehicle.
  • Figure 1 an exploded view is shown and Figure 2 shows the single cell 1 in the assembled state.
  • Such a battery in particular for vehicle applications, has a plurality of these individual cells 1, which are electrically connected in parallel and / or in series with one another.
  • the battery has a cooling and electronics, which are arranged with the individual cells 1 in a housing of the battery.
  • the single cell 1 is designed in such a configuration as a bipolar compassionflachzelle and has an electrode foil assembly 2 in the form of a
  • Electrode foil wraps two insulation shells 3, 4 and two cup-shaped
  • Housing parts 5, 6 for forming a cell housing for forming a cell housing.
  • Electrode foil assembly 2 may be formed as an electrode foil stack. In addition to the illustration of the electrode foil arrangement 2 in FIG. 1, the same is shown enlarged in FIG.
  • the electrode foil arrangement 2 forms the electrochemically active part of the individual cell 1 and comprises layers of cathode foils 2.1 and anode foils 2.2, the cathode foils 2.1 being coated aluminum foils and the anode foils 2.2 being coated copper foils.
  • the individual layers are by means of
  • the individual cathode foils 2.1 and anode foils 2.2 are in a respective one
  • the Stromabieiterfahen 2.1.1, 2.2.1 of the same polarity are electrically connected to a housing part 5, 6 of the single cell 1.
  • cathode foils 2.1 which have a first polarity, with their Stromabieiterfahen 2.1.1 with a first housing part 5 and the anode foils 2.2, which have a second polarity, with its Stromabieiterfahen with 2.2.1 electrically connected to a second housing part 6.
  • the electrode foil assembly 2 is in the mounted state of the two electrically. non-conductive insulation shells 3, 4 are surrounded, d. H. the electrode foil assembly 2 is located between the two insulation shells 3, 4, wherein the insulation shells 3, 4 for electrical contacting in the region of the Stromabieiterfahnen 2.1.1, 2.2.1 a recess 3.1, 4.1, through which the electrical connection between the cathode foils 2.1 , ie the electrode foils of the first polarity, and the first housing part 5 and between the anode foils 2.2, that is to say the electrode foils of the second polarity, and the second housing part 6.
  • the two insulation shells 3, 4 are preferably formed from a plastic and have a peripheral projecting edge region. In the assembled state of the two insulation shells 3, 4 are their edge regions on each other. Subsequently, the assemblies thus produced in the housing parts 5, 6 are arranged, wherein the single cell 1 is closed by means of a hot pressing process.
  • the peripheral edge region of the insulation shells 3, 4 partially melted and thereby connects to a peripheral edge region or flange portion of the two housing parts 5, 6, which are formed of a metal, so that the housing parts 5, 6 in the operation of the single cell 1 by means of the edge regions of the insulation shells 3, 4 are electrically isolated from each other.
  • Anode foils 2.2 frontally with the corresponding housing part 5, 6 to connect.
  • Figure 5 shows a cross section of the single cell 1, wherein the arrangement of the
  • Electrode foil assembly 2 in the insulation shells 3, 4 and the arrangement thereof in the housing parts 5, 6 of the cell housing are shown in more detail.
  • FIG. 6 shows an enlarged detail of a contacting region of end faces of the current sinking lugs 2.1.1 of cathode foils 2.1 and of the first side wall 5.1 of the first housing part 5 in a sectional representation.
  • both the Stromabieiterfahen 2.1.1 of the cathode foils 2.1 and the Stromabieiterfahen 2.2.1 of the anode foils 2.2 frontally to the first side wall 5.1, 6.1 of the respective
  • the current discharge lugs 2.1.1, 2.2.1 are connected with their front side in a material-locking manner to the first side wall 5.1, 6.1 of the respective
  • the cohesive connection is particularly preferably by means of overlap laser welding, in which case a laser beam 7 is directed from outside the respective housing part 5, 6 on the first side wall 5.1, 6.1, as shown in more detail in Figure 7.
  • a laser beam 7 is directed from outside the respective housing part 5, 6 on the first side wall 5.1, 6.1, as shown in more detail in Figure 7.
  • the above-described hot pressing process for fastening the housing parts 5, 6 together is carried out.
  • the molten plastic of the insulation shells 3, 4 solidifies, so that the two housing parts 5, 6 are preferably connected to one another under the action of pressure.
  • no insulation shells 3, 4 are provided, in which the electrode foil arrangement 2 is arranged, wherein it is provided in this embodiment that the housing parts 5, 6 are provided on their insides with an electrically insulating coating, for example plastic ,
  • the circumferential edge region of the housing parts 5, 6 is also provided with the coating, wherein this coating is used in the edge region, to fasten the two housing parts 5, 6 by means of the hot pressing process cohesively to each other.
  • the two housing parts 5, 6 are electrically insulated from each other at least by means of the coating of the edge region.
  • FIG. 8 shows an enlarged section of the contacting region, wherein the current sinking lugs 2.1. 1, 2.2. 1 of both the cathode foils 2. 1 and 2
  • Anode foils 2.2 are angled, with only the angled
  • Stromabieiterfahen 2.1.1 of the cathode foils 2.1 are shown.
  • the angling of the Stromabieiterfahnen 2.1.1, 2.2.1 by substantially 90 ° improves a connection of Stromabieiterfahen 2.1.1, 2.2.1 to the first side wall 5.1, 6.1 of the respective
  • the Stromabieiterfahnen 2.1.1, 2.2.1 are angled, which are not in electrical contact with one of the first side wall 5.1, 6.1 opposite second side wall 5.2, 6.2 of the respective housing part 5, 6.
  • FIG. 9 shows an electrode foil arrangement 2 with collector plates 8.
  • the collector plates 8 are arranged on the sides of the electrode foil arrangement 2, on which the current discharge tabs 2.1.1, 2.2.1 from the electrode foil arrangement 2 protrude.
  • the dimensions of the collector plate 8 correspond to the
  • Stromabieiterfahen 2.1.1, 2.2.1 protrude from the electrode foil assembly 2, wherein a collector plate 8 Stromabieiterfahen 2.1.1, 2.2.1 is associated with a polarity.
  • Such a collector plate 8 is between the end faces of the respective
  • the Stromabieiterfahen 2.1.1, 2.2.1 welded frontally to the collector plate 8, wherein the collector plate 8 in turn to the first side wall 5.1, 6.1 of the corresponding housing part 5, 6 is welded.
  • the collector plate 8 is also preferably fixed by means of overlap laser welding material fit at least on the first side wall 5.1, 6.1 of the respective housing part 5, 6.
  • Housing part 5, 6, which each forms an electrical pole of the single cell 1 can be improved. In addition, a welding process can be facilitated because of
  • FIG. 11 shows the collector plate 8 in an alternative embodiment, wherein the collector plate 8 is formed as a bimetallic collector plate 8 '.
  • FIG. 11 shows a contacting region of current discharge lugs 2.2.1 of the anode foils 2.2 and of the first side wall 6.1 of the second housing part 6.
  • the bimetallic collector plate 8 has an aluminum layer 8.1 and a copper layer 8.2, wherein the cell housing of the single cell 1 forming housing parts 5, 6 from
  • the aluminum layer 8.1 is arranged in the direction of the first side wall 6.1 of the second housing part 6 and the Copper layer 8.2 is arranged facing Stromabieiterfahen 2.2.1, so that a so-called pure welded joint between both the second
  • the bimetallic collector plate 8 exclusively on the side of the
  • Electrode foil assembly 2 attached to the Stromabieiterfahen 2.2.1, where the Stromabieiterfahen 2.2.1 are formed of copper, so the anode foils 2.2 protrude from the electrode foil assembly 2 to the advantages of a pure art
  • the Stromabieiterfahen 2.2.1 are electrically connected to the first side wall 6.1 of the second housing part 6, which are formed of copper.
  • the contacting region is provided to provide the first side wall 6.1 on its inner surface with a layer of copper 9 in order to allow an artificially welded connection between the Stromabieiterfahen 2.2.1 and the first side wall 6.1.
  • the layer of copper 9 by coating by vapor deposition and / or electrodeposition, by strip plating, in which preferably before forming the corresponding housing part 5, 6, the copper 9 is rolled into a strip material or by welding a
  • Copper sheets are applied to the inner surface of the first side wall 6.1.
  • the single cell 1 is formed from a cell cup 10 and a cell lid 11 as a cell housing, wherein in the cell cup 10, an electrode foil winding as
  • Electrode foil assembly 2 is arranged.
  • the Stromabieiterfahen consisting of copper foils 2.2.1 in the direction of the cell lid 11 and the Stromabieiterfahen 2.1.1 formed of aluminum are arranged in the direction of the bottom 10.1 of the cell cup 10.
  • the Stromabieiterfahen 2.2.1 of the anode foils 2.2 are the front side materially connected to a collector 8, in particular welded, the collector 8 forms the negative terminal of the single cell 1.
  • the collector 8 has a pin-like extension 8.3, which by means of an insulating element 12 arranged on the cell cup 10th
  • Cell cover 11 is electrically isolated by the same, so that the pin-like extension 8.3 is arranged as a negative pole outside the cell cup 10 and thus freely accessible.
  • To set a required for welding compression of the cell cover 11 is pressed with the attached collector 8 and attached to the collector 8 electrode foil assembly 2 into the cell cup 10, wherein the cell lid 11 and the cell cup 10 are moved against each other.
  • the positive pole of the single cell 1 forms the entire cell housing in the form of the cell cup 10 and the cell lid 11. Daimler AG

Abstract

L'invention concerne un élément individuel (1) d'une batterie, ledit élément comportant au moins un boîtier dans lequel est disposé un ensemble film formant électrode (2). Selon l'invention, des films formant électrodes d'une première polarité sont électriquement connectés côté frontal à au moins une première partie boîtier (5), et des films formant électrodes d'une deuxième polarité sont électriquement connectés côté frontal à une deuxième partie boîtier (6), les zones de la liaison avec les parties boîtier (5, 6) étant opposées.
PCT/EP2013/002395 2012-09-13 2013-08-09 Élément individuel d'une batterie WO2014040677A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012018129.9 2012-09-13
DE102012018129.9A DE102012018129A1 (de) 2012-09-13 2012-09-13 Einzelzelle für eine Batterie

Publications (2)

Publication Number Publication Date
WO2014040677A2 true WO2014040677A2 (fr) 2014-03-20
WO2014040677A3 WO2014040677A3 (fr) 2014-08-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/002395 WO2014040677A2 (fr) 2012-09-13 2013-08-09 Élément individuel d'une batterie

Country Status (2)

Country Link
DE (1) DE102012018129A1 (fr)
WO (1) WO2014040677A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016221573A1 (de) * 2016-11-03 2018-05-03 Robert Bosch Gmbh Batteriezelle
DE102017006229B4 (de) 2017-07-03 2024-02-01 Monbat New Power GmbH Verfahren und Vorrichtung zur Herstellung eines Akkumulators und Akkumulator
DE102019135055A1 (de) * 2019-12-19 2021-06-24 Einhell Germany Ag Batteriezelle
DE102021103208A1 (de) 2021-02-11 2022-08-11 Bayerische Motoren Werke Aktiengesellschaft Lithiumionen-Batteriezelle und Verfahren zu deren Herstellung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6007944A (en) * 1997-04-10 1999-12-28 Varta Batterie Aktiengesellschaft Rechargeable lithium-ion cell
US20040247999A1 (en) * 2001-10-19 2004-12-09 Matsushita Electric Industrial Co., Ltd. Secondary battery
US20050287433A1 (en) * 2004-06-25 2005-12-29 Hyon-Sok Kim Secondary battery
US20090233159A1 (en) * 2005-04-26 2009-09-17 Powergenix Systems, Inc. Cylindrical nickel-zinc cell with negative can
DE102009008859A1 (de) * 2009-02-09 2010-08-12 Varta Microbattery Gmbh Knopfzelle und Verfahren zu ihrer Herstellung
DE102009060800A1 (de) * 2009-06-18 2011-06-09 Varta Microbattery Gmbh Knopfzelle mit Wickelelektrode und Verfahren zu ihrer Herstellung
WO2013017206A1 (fr) * 2011-08-02 2013-02-07 Daimler Ag Élément unitaire pour batterie et batterie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100289541B1 (ko) 1999-03-31 2001-05-02 김순택 이차전지
DE10250839B4 (de) 2002-10-31 2007-09-27 Dilo Trading Ag Elektrodenableiteranordnung, deren Verwendung und Verfahren zur Polung von Elektrodenableitern

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6007944A (en) * 1997-04-10 1999-12-28 Varta Batterie Aktiengesellschaft Rechargeable lithium-ion cell
US20040247999A1 (en) * 2001-10-19 2004-12-09 Matsushita Electric Industrial Co., Ltd. Secondary battery
US20050287433A1 (en) * 2004-06-25 2005-12-29 Hyon-Sok Kim Secondary battery
US20090233159A1 (en) * 2005-04-26 2009-09-17 Powergenix Systems, Inc. Cylindrical nickel-zinc cell with negative can
DE102009008859A1 (de) * 2009-02-09 2010-08-12 Varta Microbattery Gmbh Knopfzelle und Verfahren zu ihrer Herstellung
DE102009060800A1 (de) * 2009-06-18 2011-06-09 Varta Microbattery Gmbh Knopfzelle mit Wickelelektrode und Verfahren zu ihrer Herstellung
WO2013017206A1 (fr) * 2011-08-02 2013-02-07 Daimler Ag Élément unitaire pour batterie et batterie

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Publication number Publication date
DE102012018129A1 (de) 2014-03-13
WO2014040677A3 (fr) 2014-08-07

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