CN101636863B - 锂二次电池用负极及其制造方法、和具有锂二次电池用负极的锂二次电池 - Google Patents

锂二次电池用负极及其制造方法、和具有锂二次电池用负极的锂二次电池 Download PDF

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CN101636863B
CN101636863B CN2008800080511A CN200880008051A CN101636863B CN 101636863 B CN101636863 B CN 101636863B CN 2008800080511 A CN2008800080511 A CN 2008800080511A CN 200880008051 A CN200880008051 A CN 200880008051A CN 101636863 B CN101636863 B CN 101636863B
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active material
material layer
collector body
secondary battery
lithium secondary
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CN101636863A (zh
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山本泰右
岩本和也
古结康隆
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • 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
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/78—Shapes other than plane or cylindrical, e.g. helical
    • 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
    • H01M4/70—Carriers or collectors characterised by shape or form
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • 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
    • H01M4/04—Processes of manufacture in general
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/134—Electrodes based on metals, Si or alloys
    • 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
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • 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
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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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)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
CN2008800080511A 2007-03-13 2008-03-13 锂二次电池用负极及其制造方法、和具有锂二次电池用负极的锂二次电池 Active CN101636863B (zh)

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JP2007063939 2007-03-13
JP063939/2007 2007-03-13
PCT/JP2008/000564 WO2008111315A1 (ja) 2007-03-13 2008-03-13 リチウム二次電池用負極およびその製造方法、ならびにリチウム二次電池用負極を備えたリチウム二次電池

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CN101636863A CN101636863A (zh) 2010-01-27
CN101636863B true CN101636863B (zh) 2013-01-09

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US (1) US8771874B2 (https=)
EP (1) EP2124273A4 (https=)
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KR (1) KR101043157B1 (https=)
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WO (1) WO2008111315A1 (https=)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9166230B1 (en) 2007-01-12 2015-10-20 Enovix Corporation Three-dimensional battery having current-reducing devices corresponding to electrodes
WO2008089110A1 (en) 2007-01-12 2008-07-24 Microazure Corporation Three-dimensional batteries and methods of manufacturing the same
JP5342440B2 (ja) 2007-04-27 2013-11-13 パナソニック株式会社 リチウム二次電池用負極およびそれを備えたリチウム二次電池、ならびにリチウム二次電池用負極の製造方法
WO2010092059A1 (de) * 2009-02-10 2010-08-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Leistungs- und energiedichteoptimierte flächenelektroden für elektrochemische energiespeicher
US8927156B2 (en) 2009-02-19 2015-01-06 Semiconductor Energy Laboratory Co., Ltd. Power storage device
JP2010239122A (ja) 2009-03-09 2010-10-21 Semiconductor Energy Lab Co Ltd 蓄電デバイス
WO2011114709A1 (ja) * 2010-03-18 2011-09-22 パナソニック株式会社 リチウム二次電池
EP2472648B1 (en) 2010-04-23 2017-11-15 Panasonic Intellectual Property Management Co., Ltd. Negative electrode for lithium ion battery and method for producing the same, and lithium ion battery
CN102449819A (zh) * 2010-05-21 2012-05-09 松下电器产业株式会社 锂离子二次电池用负极及锂离子二次电池
US9843027B1 (en) 2010-09-14 2017-12-12 Enovix Corporation Battery cell having package anode plate in contact with a plurality of dies
US20130164611A1 (en) * 2011-12-23 2013-06-27 Semiconductor Energy Laboratory Co., Ltd. Power storage device
US8841030B2 (en) 2012-01-24 2014-09-23 Enovix Corporation Microstructured electrode structures
EP2807698B1 (en) 2012-01-24 2018-01-10 Enovix Corporation Ionically permeable structures for energy storage devices
KR20240055130A (ko) 2012-08-16 2024-04-26 에노빅스 코오퍼레이션 3차원 배터리들을 위한 전극 구조들
CN105308772B (zh) 2013-03-15 2018-11-16 艾诺维克斯公司 用于三维电池的隔膜
US9905844B2 (en) * 2013-08-28 2018-02-27 Robert Bosch Gmbh Solid state battery with volume change material
JP6237775B2 (ja) * 2013-09-27 2017-11-29 三洋電機株式会社 非水電解質二次電池用負極
CN105594020B (zh) * 2014-01-15 2019-04-26 Jenax股份有限公司 二次电池用电极及其制备方法
CN112018325A (zh) * 2014-10-24 2020-12-01 株式会社半导体能源研究所 二次电池及二次电池的制造方法
TWI793480B (zh) 2015-05-14 2023-02-21 美商易諾維公司 用於能量儲存裝置之縱向約束
TWI739830B (zh) 2016-05-13 2021-09-21 美商易諾維公司 用於三維電池之尺寸拘束件
CN108352506B (zh) * 2016-07-04 2021-08-24 株式会社Lg化学 正极和包含该正极的二次电池
TWI819481B (zh) 2016-11-16 2023-10-21 美商易諾維公司 具有可壓縮陰極之三維電池
US10256507B1 (en) 2017-11-15 2019-04-09 Enovix Corporation Constrained electrode assembly
KR102859540B1 (ko) 2017-11-15 2025-09-17 에노빅스 코오퍼레이션 전극 어셈블리 및 2차 배터리
CN108110222B (zh) * 2017-12-08 2020-04-17 成都新柯力化工科技有限公司 一种基于锂电池的多层金属-碳负极的制备方法
US11211639B2 (en) 2018-08-06 2021-12-28 Enovix Corporation Electrode assembly manufacture and device
KR102731112B1 (ko) * 2018-11-05 2024-11-15 삼성전자주식회사 전극 구조체 및 그 제조방법과, 전극 구조체를 포함하는 이차 전지
WO2020154053A2 (en) * 2018-12-20 2020-07-30 Pimems, Inc Mems anode battery
US10581081B1 (en) 2019-02-01 2020-03-03 Chang Chun Petrochemical Co., Ltd. Copper foil for negative electrode current collector of lithium ion secondary battery
KR102380514B1 (ko) * 2019-03-14 2022-03-31 삼성에스디아이 주식회사 전극 및 이를 포함하는 이차전지
US11024842B2 (en) * 2019-06-27 2021-06-01 Graphenix Development, Inc. Patterned anodes for lithium-based energy storage devices
KR102947244B1 (ko) 2019-08-13 2026-04-03 그래피닉스 디벨롭먼트, 인크. 리튬계 에너지 저장 디바이스용 애노드 및 그 제조 방법
US11489154B2 (en) 2019-08-20 2022-11-01 Graphenix Development, Inc. Multilayer anodes for lithium-based energy storage devices
WO2021034916A1 (en) * 2019-08-20 2021-02-25 Graphenix Development, Inc. Structured anodes for lithium-based energy storage devices
US11495782B2 (en) 2019-08-26 2022-11-08 Graphenix Development, Inc. Asymmetric anodes for lithium-based energy storage devices
WO2021138814A1 (zh) * 2020-01-07 2021-07-15 宁德新能源科技有限公司 电化学装置和包含所述电化学装置的电子装置
JP7844451B2 (ja) 2020-09-18 2026-04-13 エノビクス・コーポレイション 電池に使用する電極の製造
CN116783744A (zh) 2020-12-09 2023-09-19 艾诺维克斯公司 用于制造二次电池的电极组合件的方法及装置
US12388067B2 (en) 2021-04-26 2025-08-12 Graphenix Development, Inc. Anodes for lithium-based energy storage devices
EP4195317A4 (en) * 2021-10-15 2024-03-20 Contemporary Amperex Technology Co., Limited NEGATIVE ELECTRODE PLATE, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND ENERGY CONSUMPTION DEVICE
CN117117078B (zh) * 2023-03-13 2024-08-30 荣耀终端有限公司 一种锂离子电池及其负极极片
KR20250097428A (ko) * 2023-12-21 2025-06-30 주식회사 엘지에너지솔루션 음극, 이의 제조방법 및 이를 포함하는 리튬 이차 전지

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4453111B2 (ja) 1997-10-27 2010-04-21 三菱化学株式会社 負極材料とその製造方法、負極活物質、および非水系二次電池
JP2948205B1 (ja) 1998-05-25 1999-09-13 花王株式会社 二次電池用負極の製造方法
CN1257568C (zh) 1999-10-22 2006-05-24 三洋电机株式会社 可再充电锂电池的电极和可再充电锂电池
JP2002083594A (ja) 1999-10-22 2002-03-22 Sanyo Electric Co Ltd リチウム電池用電極並びにこれを用いたリチウム電池及びリチウム二次電池
US6887623B2 (en) 2001-04-09 2005-05-03 Sanyo Electric Co., Ltd. Electrode for rechargeable lithium battery and rechargeable lithium battery
US6844113B2 (en) 2001-04-13 2005-01-18 Sanyo Electric Co., Ltd. Electrode for lithium secondary battery and method for producing the same
JP4082922B2 (ja) 2001-04-13 2008-04-30 三洋電機株式会社 リチウム二次電池用電極及びその製造方法
JP2002319408A (ja) 2001-04-23 2002-10-31 Sanyo Electric Co Ltd リチウム二次電池用電極及びリチウム二次電池
JP3754374B2 (ja) 2002-01-17 2006-03-08 三洋電機株式会社 リチウム二次電池用電極の製造方法
JP3896025B2 (ja) 2002-04-10 2007-03-22 三洋電機株式会社 二次電池用電極
JP4037229B2 (ja) 2002-09-30 2008-01-23 日立マクセル株式会社 リチウム二次電池用電極と、これを負極とするリチウム二次電池
JP3664252B2 (ja) 2002-11-19 2005-06-22 ソニー株式会社 負極およびそれを用いた電池
US20070059601A1 (en) * 2003-04-28 2007-03-15 Yoshitake Natsume Negative electrode for lithium secondary cell, lithium secondary cell employing the negative electrode, film deposition material b used for forming negative electrode, and process for producing negative electrode
US20050048369A1 (en) 2003-08-28 2005-03-03 Matsushita Electric Industrial Co., Ltd. Negative electrode for non-aqueous electrolyte secondary battery, production method thereof and non-aqueous electrolyte secondary battery
US7432014B2 (en) 2003-11-05 2008-10-07 Sony Corporation Anode and battery
JP3786276B2 (ja) 2003-11-05 2006-06-14 ソニー株式会社 負極および電池
US7816032B2 (en) 2003-11-28 2010-10-19 Panasonic Corporation Energy device and method for producing the same
JP4197491B2 (ja) 2003-12-26 2008-12-17 パナソニック株式会社 非水電解質二次電池用負極とその製造方法ならびにそれを用いた非水電解質二次電池
JP4780923B2 (ja) 2004-03-30 2011-09-28 三洋電機株式会社 リチウム二次電池
JP4488781B2 (ja) * 2004-03-31 2010-06-23 三洋電機株式会社 リチウム二次電池用電極の製造方法
JP4078338B2 (ja) 2004-04-20 2008-04-23 三洋電機株式会社 リチウム二次電池用電極及びリチウム二次電池
JP4831946B2 (ja) * 2004-08-31 2011-12-07 三洋電機株式会社 非水電解質電池
JP4815777B2 (ja) 2004-10-05 2011-11-16 株式会社Ｇｓユアサ 非水電解質二次電池
JP4994634B2 (ja) 2004-11-11 2012-08-08 パナソニック株式会社 リチウムイオン二次電池用負極、その製造方法、およびそれを用いたリチウムイオン二次電池
TWI311384B (en) 2004-11-25 2009-06-21 Sony Corporatio Battery and method of manufacturing the same
JP4824394B2 (ja) 2004-12-16 2011-11-30 パナソニック株式会社 リチウムイオン二次電池用負極、その製造方法、およびそれを用いたリチウムイオン二次電池
JP2006269306A (ja) 2005-03-25 2006-10-05 Sanyo Electric Co Ltd リチウム二次電池用電極およびその製造方法
JP4953583B2 (ja) * 2005-03-29 2012-06-13 三洋電機株式会社 リチウム二次電池
JP2006284918A (ja) 2005-03-31 2006-10-19 Canon Inc 電気泳動表示装置の駆動方法
JP2007015419A (ja) 2005-07-05 2007-01-25 Mazda Motor Corp 水素燃料タンクを備えた車両のバッテリ冷却装置
US8080334B2 (en) 2005-08-02 2011-12-20 Panasonic Corporation Lithium secondary battery
JP5043338B2 (ja) * 2006-01-19 2012-10-10 パナソニック株式会社 リチウム二次電池
KR101049683B1 (ko) * 2006-02-14 2011-07-14 파나소닉 주식회사 비수전해질 이차전지용 전극과 그 제조 방법 및 비수전해질 이차전지용 전극을 갖춘 비수 전해질 이차전지
US7964307B2 (en) * 2006-07-24 2011-06-21 Panasonic Corporation Negative electrode for lithium ion secondary battery, method for producing the same, and lithium ion secondary battery

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JP特开2002-319408A 2002.10.31
JP特开2005-196970A 2005.07.21
JP特开2005-293899A 2005.10.20
JP特开2006-278104A 2006.10.12
JP特开2006-73212A 2006.03.16

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JP2008258154A (ja) 2008-10-23
KR20090109577A (ko) 2009-10-20
US20100040951A1 (en) 2010-02-18
EP2124273A4 (en) 2013-12-04
JP4460642B2 (ja) 2010-05-12
CN101636863A (zh) 2010-01-27
JPWO2008111315A1 (ja) 2010-06-24
WO2008111315A1 (ja) 2008-09-18
US8771874B2 (en) 2014-07-08
KR101043157B1 (ko) 2011-06-20
EP2124273A1 (en) 2009-11-25

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