JP7843447B2 - リチウムイオン二次電池用負極、リチウムイオン二次電池、CNT-Siペーストの製造方法、リチウムイオン二次電池用負極の製造方法、リチウムイオン二次電池の製造方法 - Google Patents

リチウムイオン二次電池用負極、リチウムイオン二次電池、CNT-Siペーストの製造方法、リチウムイオン二次電池用負極の製造方法、リチウムイオン二次電池の製造方法

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JP7843447B2
JP7843447B2 JP2023502180A JP2023502180A JP7843447B2 JP 7843447 B2 JP7843447 B2 JP 7843447B2 JP 2023502180 A JP2023502180 A JP 2023502180A JP 2023502180 A JP2023502180 A JP 2023502180A JP 7843447 B2 JP7843447 B2 JP 7843447B2
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negative electrode
lithium
active material
ion secondary
secondary battery
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JPWO2022181151A1 (https=
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暢宏 平野
友祐 福本
仁徳 杉森
友嗣 横山
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Panasonic Intellectual Property Management Co Ltd
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    • HELECTRICITY
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    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01M4/04Processes of manufacture in general
    • H01M4/0402Methods of deposition of the material
    • H01M4/0404Methods of deposition of the material by coating on electrode collectors
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    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/133Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/134Electrodes based on metals, Si or alloys
    • HELECTRICITY
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    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/136Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139Processes of manufacture
    • H01M4/1393Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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    • H01M4/139Processes of manufacture
    • H01M4/1395Processes of manufacture of electrodes based on metals, Si or alloys
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    • H01M4/58Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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    • H01M2004/026Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027Negative electrodes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Battery Electrode And Active Subsutance (AREA)
JP2023502180A 2021-02-25 2022-01-24 リチウムイオン二次電池用負極、リチウムイオン二次電池、CNT-Siペーストの製造方法、リチウムイオン二次電池用負極の製造方法、リチウムイオン二次電池の製造方法 Active JP7843447B2 (ja)

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JP2021028512 2021-02-25
JP2021028512 2021-02-25
PCT/JP2022/002362 WO2022181151A1 (ja) 2021-02-25 2022-01-24 リチウムイオン二次電池用負極、リチウムイオン二次電池、CNT-Siペーストの製造方法、リチウムイオン二次電池用負極の製造方法、リチウムイオン二次電池の製造方法

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Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
WO2025005257A1 (ja) * 2023-06-30 2025-01-02 artience株式会社 二次電池電極用複合物
JP2025184602A (ja) * 2024-06-07 2025-12-18 住友化学株式会社 負極、及び二次電池
CN118919680B (zh) * 2024-07-18 2025-06-17 芜湖楚睿智能科技有限公司 超大电流磷酸铁锂电池及其制备方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004220910A (ja) 2003-01-15 2004-08-05 Mitsubishi Materials Corp 負極材料及びこれを用いた負極、並びにこの負極を用いたリチウムイオン電池及びリチウムポリマー電池
JP2010095797A (ja) 2008-10-14 2010-04-30 Korea Inst Of Science & Technology カーボンナノチューブ被覆シリコン/金属複合粒子及びその製造方法、並びにこれを利用した二次電池用負極及び二次電池
JP2015191688A (ja) 2014-03-27 2015-11-02 三菱マテリアル株式会社 リチウムイオン二次電池用負極活物質及びその製造方法
JP2016514080A (ja) 2013-02-22 2016-05-19 バイエル・マテリアルサイエンス・アクチェンゲゼルシャフトBayer MaterialScience AG カーボンナノチューブ含有分散液および電極の製造におけるその使用
JP2017076597A (ja) 2015-10-15 2017-04-20 ジーエス エナジー コーポレーション 二次電池用負極活物質及びその製造方法
JP2017103170A (ja) 2015-12-04 2017-06-08 株式会社デンソー リチウムイオン二次電池用正極及びその製造方法
JP2019036416A (ja) 2017-08-10 2019-03-07 トヨタ自動車株式会社 非水電解質二次電池の製造方法
CN110571412A (zh) 2019-05-08 2019-12-13 东莞市创明电池技术有限公司 锂离子电池用硅基负极材料及其制备方法和应用
JP2020105316A (ja) 2018-12-27 2020-07-09 東洋インキScホールディングス株式会社 カーボンナノチューブ分散液およびその利用
WO2021020939A1 (ko) 2019-08-01 2021-02-04 주식회사 엘지화학 음극, 상기 음극을 포함하는 이차 전지, 및 상기 음극의 제조 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004356078A (ja) 2003-05-28 2004-12-16 Hosokawa Funtai Gijutsu Kenkyusho:Kk 複合粒子および複合粒子の製造方法、並びに非水電解質二次電池用負極およびこれを用いた非水電解質二次電池
JP5557003B2 (ja) 2010-03-19 2014-07-23 株式会社豊田自動織機 負極材料、非水電解質二次電池および負極材料の製造方法
US9362550B2 (en) * 2011-11-25 2016-06-07 Panasonic Intellectual Property Management Co., Ltd. Negative electrode for lithium ion secondary batteries and method for producing the negative electrode, and lithium ion secondary battery
JP6156939B2 (ja) * 2012-04-05 2017-07-05 Necエナジーデバイス株式会社 リチウムイオン二次電池
JP2014093192A (ja) * 2012-11-02 2014-05-19 Mitsubishi Materials Corp リチウムイオン二次電池の負極及び該負極の製造方法並びに該負極により製造された二次電池
FR3011234B1 (fr) 2013-09-30 2015-10-02 Renault Sa Electrode pour batterie de stockage d'energie electrique comprenant un materiau composite graphite/silicium/fibres de carbone
KR101968112B1 (ko) * 2017-05-26 2019-04-11 한국화학연구원 이차전지 음극재
JP7274265B2 (ja) * 2018-04-26 2023-05-16 株式会社エンビジョンAescジャパン リチウムイオン二次電池用電極製造用ペーストの製造方法、リチウムイオン二次電池用電極の製造方法およびリチウムイオン二次電池の製造方法
KR102731343B1 (ko) * 2018-11-22 2024-11-18 고쿠리츠 다이가쿠 호진 신슈 다이가쿠 2차 전지용 음극 활물질과 그 제조 방법, 및 2차 전지
KR102764103B1 (ko) * 2019-08-05 2025-02-10 주식회사 엘지에너지솔루션 음극, 이의 제조방법 및 이를 포함하는 이차전지

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004220910A (ja) 2003-01-15 2004-08-05 Mitsubishi Materials Corp 負極材料及びこれを用いた負極、並びにこの負極を用いたリチウムイオン電池及びリチウムポリマー電池
JP2010095797A (ja) 2008-10-14 2010-04-30 Korea Inst Of Science & Technology カーボンナノチューブ被覆シリコン/金属複合粒子及びその製造方法、並びにこれを利用した二次電池用負極及び二次電池
JP2016514080A (ja) 2013-02-22 2016-05-19 バイエル・マテリアルサイエンス・アクチェンゲゼルシャフトBayer MaterialScience AG カーボンナノチューブ含有分散液および電極の製造におけるその使用
JP2015191688A (ja) 2014-03-27 2015-11-02 三菱マテリアル株式会社 リチウムイオン二次電池用負極活物質及びその製造方法
JP2017076597A (ja) 2015-10-15 2017-04-20 ジーエス エナジー コーポレーション 二次電池用負極活物質及びその製造方法
JP2017103170A (ja) 2015-12-04 2017-06-08 株式会社デンソー リチウムイオン二次電池用正極及びその製造方法
JP2019036416A (ja) 2017-08-10 2019-03-07 トヨタ自動車株式会社 非水電解質二次電池の製造方法
JP2020105316A (ja) 2018-12-27 2020-07-09 東洋インキScホールディングス株式会社 カーボンナノチューブ分散液およびその利用
CN110571412A (zh) 2019-05-08 2019-12-13 东莞市创明电池技术有限公司 锂离子电池用硅基负极材料及其制备方法和应用
WO2021020939A1 (ko) 2019-08-01 2021-02-04 주식회사 엘지화학 음극, 상기 음극을 포함하는 이차 전지, 및 상기 음극의 제조 방법

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EP4300621A4 (en) 2025-07-09
CN116868372A (zh) 2023-10-10
EP4300621A1 (en) 2024-01-03
JPWO2022181151A1 (https=) 2022-09-01
US20240128440A1 (en) 2024-04-18

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