EP2614548A1 - Conducteur de courant pour cellules électrochimiques - Google Patents

Conducteur de courant pour cellules électrochimiques

Info

Publication number
EP2614548A1
EP2614548A1 EP11757823.7A EP11757823A EP2614548A1 EP 2614548 A1 EP2614548 A1 EP 2614548A1 EP 11757823 A EP11757823 A EP 11757823A EP 2614548 A1 EP2614548 A1 EP 2614548A1
Authority
EP
European Patent Office
Prior art keywords
conductor
film
lithium
carrier
electrochemical cell
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Withdrawn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
EP11757823.7A
Other languages
German (de)
English (en)
Inventor
Thomas Berger
Karsten Pinkwart
Jens TÜBKE
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.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of EP2614548A1 publication Critical patent/EP2614548A1/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Withdrawn legal-status Critical Current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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/668—Composites of electroconductive material and synthetic resins
    • 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
    • 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

Definitions

  • the present invention is directed to the use of a film (F) as a current conductor in an electrochemical cell (Z), characterized in that the film (F) comprises a support (T) which is coated with an electrical conductor (L) and the Carrier (T) has a lower specific gravity (mg / cm 3 ) than the conductor (L).
  • the electrochemical cell (Z) may be a primary or secondary cell.
  • a film (F) according to the present invention is a thin, planar and flexible electrical conductor.
  • the film (F) has an electrical conductivity of at least 7.5 x 10 6 S / m, more preferably at least 25.0 x 10 6 S / m, such as at least 38.0 x 10 6 S / m.
  • these electrical apply
  • Conductivities for films (F) for use as anode conductors are low compared to conventional conductors, in particular to conductors for the anode of electrochemical cells, such as lithium-ion cells. Accordingly, the film (F) preferably knows
  • the thickness of the film (F) should not exceed 20.0 ⁇ . Particularly favorable results are obtained with films (F) whose thickness is not be more than 15.0 ⁇ , especially with films whose thickness in the range of 10.0 to 14.0 ⁇ , such as from 11.5 to 13.5 ⁇ lie.
  • the carrier (T) is a metal.
  • the carrier (T) is a polymer, this is selected from the group of
  • a metal is used as the support (T), it is selected from the group of conductive metals having a specific gravity ⁇ 5 g / cm 3 .
  • the basis weight of the conductor (L) is primarily in the range of 0.5 to 6.0 mg / cm 2, preferably in the range of 0.7 to 4.0 mg / cm 2 as in the range of 1.0 to 2, 0 mg / cm 2 .
  • the conductor (L) for anode conductors is made of a material that does not alloy with lithium.
  • the conductor is preferably selected from the group consisting of Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu and Ag.
  • coating or “coating” in the present invention illustrates that the conductor (L) completely covers the surface of the carrier (T).
  • the present invention relates not only to the use of the film (F) in electrochemical cells, such as lithium-ion cells, as an electrical conductor (L), in particular as an electrical conductor for the anode, but also the
  • electrochemical cells such as lithium-ion cells, comprising as conductor (L), in particular as a conductor for the anode, the film (F) according to the present invention.
  • Copper foils with which large-scale graphite anodes for Li-ion cells can be produced The tensile strength of the pure copper is about 200 N / mm 2 . Under ideal conditions it follows that a tensile stress of 16 N on a 10 mm wide film strip would lead to the breakage of this film.
  • the electrical resistance of a 1 m long and 10 mm wide film strip is about 0.2 ohms.
  • Multilayer film reduced in the stated embodiment of 7.14 mg / cm 2 to 3.60 mg / cm 2 . This corresponds to a weight reduction of the anode conductor foils of 50%.
  • the weight fraction of the copper foil current conductor of the anode is 20% of the total mass of the cell. If the 8 ⁇ thick copper foil through the

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

L'invention concerne l'utilisation d'une feuille conductrice de courant dans une cellule électrochimique, la feuille comprenant un support qui est revêtu d'un conducteur électrique et le support présente une masse surfacique moindre que le conducteur.
EP11757823.7A 2010-09-10 2011-09-08 Conducteur de courant pour cellules électrochimiques Withdrawn EP2614548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010040574A DE102010040574A1 (de) 2010-09-10 2010-09-10 Stromleiter für elektrochemische Zellen
PCT/EP2011/065558 WO2012032120A1 (fr) 2010-09-10 2011-09-08 Conducteur de courant pour cellules électrochimiques

Publications (1)

Publication Number Publication Date
EP2614548A1 true EP2614548A1 (fr) 2013-07-17

Family

ID=44653299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11757823.7A Withdrawn EP2614548A1 (fr) 2010-09-10 2011-09-08 Conducteur de courant pour cellules électrochimiques

Country Status (7)

Country Link
US (1) US20130266871A1 (fr)
EP (1) EP2614548A1 (fr)
JP (1) JP2013541139A (fr)
KR (1) KR20130056304A (fr)
CA (1) CA2810458A1 (fr)
DE (1) DE102010040574A1 (fr)
WO (1) WO2012032120A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013204226A1 (de) * 2013-03-12 2014-10-02 Robert Bosch Gmbh Ableiter für einen elektrochemischen Energiespeicher
DE102014201310A1 (de) * 2014-01-24 2015-07-30 Robert Bosch Gmbh Galvanisches Element
US10205170B1 (en) * 2017-12-04 2019-02-12 Chang Chun Petrochemical Co., Ltd. Copper foil for current collector of lithium secondary battery
USD885411S1 (en) 2018-07-31 2020-05-26 Samsung Electronics Co., Ltd. Display screen or portion thereof with transitional graphical user interface
TWI660541B (zh) * 2018-10-01 2019-05-21 長春石油化學股份有限公司 用於鋰二次電池集電體之銅箔及包含其之負極

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007042413A (ja) * 2005-08-03 2007-02-15 Gs Yuasa Corporation:Kk 非水電解質二次電池
EP2503628A1 (fr) * 2009-11-20 2012-09-26 Nissan Motor Co., Ltd Collecteur de courant pour batterie secondaire bipolaire
EP2596540A1 (fr) * 2010-07-20 2013-05-29 Evonik Litarion GmbH Batterie à éléments parallélépipédiques contenant une électrode bipolaire

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1021889A (ja) * 1996-06-27 1998-01-23 Toyota Central Res & Dev Lab Inc リチウムイオン二次電池の容器および電極集電体
US5846675A (en) * 1997-02-21 1998-12-08 Samsung Display Devices Co., Ltd. Current collector for lithium ion batteries
WO2000015875A1 (fr) * 1998-09-14 2000-03-23 Mitsui Mining & Smelting Co., Ltd. Feuille de cuivre poreuse, son utilisation et son procede de production
JP2001256968A (ja) * 2000-03-13 2001-09-21 Mitsui Mining & Smelting Co Ltd 非水電解質二次電池用負極材料およびその製造方法
JP2002305034A (ja) * 2001-02-01 2002-10-18 Nisshinbo Ind Inc 蓄電デバイス
US20040137326A1 (en) * 2002-11-09 2004-07-15 Munshi M. Zafar A. Lithium ion battery and methods of manufacturing same
JP4055642B2 (ja) * 2003-05-01 2008-03-05 日産自動車株式会社 高速充放電用電極および電池
JP4920880B2 (ja) * 2003-09-26 2012-04-18 三星エスディアイ株式会社 リチウムイオン二次電池
JP4300310B2 (ja) * 2003-11-13 2009-07-22 日産自動車株式会社 バイポーラ電池、組電池、複合組電池、および組電池または複合組電池を用いた車両
JP2005251429A (ja) * 2004-03-01 2005-09-15 Mitsui Mining & Smelting Co Ltd Ａｌ合金キャリア付孔開き金属箔及びその製造方法並びにＡｌ合金キャリア付孔開き金属箔から分離された該孔開き金属箔を含む二次電池用電極及び二次電池
JP5039956B2 (ja) * 2006-09-07 2012-10-03 トヨタ自動車株式会社 負極活物質、負極およびリチウム二次電池
JP5266839B2 (ja) * 2008-03-28 2013-08-21 ソニー株式会社 二次電池用負極、二次電池および電子機器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007042413A (ja) * 2005-08-03 2007-02-15 Gs Yuasa Corporation:Kk 非水電解質二次電池
EP2503628A1 (fr) * 2009-11-20 2012-09-26 Nissan Motor Co., Ltd Collecteur de courant pour batterie secondaire bipolaire
EP2596540A1 (fr) * 2010-07-20 2013-05-29 Evonik Litarion GmbH Batterie à éléments parallélépipédiques contenant une électrode bipolaire

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"CRC Handbook of Chemistry and Physics, 94th Edition, Internet Version 2014", 1 January 2014, article "ELECTRICAL RESISTIVITY OF PURE METALS", pages: 12-41 - 12-42 *
See also references of WO2012032120A1 *

Also Published As

Publication number Publication date
WO2012032120A1 (fr) 2012-03-15
JP2013541139A (ja) 2013-11-07
CA2810458A1 (fr) 2012-03-15
US20130266871A1 (en) 2013-10-10
DE102010040574A1 (de) 2012-03-15
KR20130056304A (ko) 2013-05-29

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