WO2020067379A1 - Électrode pour accumulateurs lithium-ion, et accumulateur lithium-ion - Google Patents

Électrode pour accumulateurs lithium-ion, et accumulateur lithium-ion Download PDF

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Publication number
WO2020067379A1
WO2020067379A1 PCT/JP2019/038037 JP2019038037W WO2020067379A1 WO 2020067379 A1 WO2020067379 A1 WO 2020067379A1 JP 2019038037 W JP2019038037 W JP 2019038037W WO 2020067379 A1 WO2020067379 A1 WO 2020067379A1
Authority
WO
WIPO (PCT)
Prior art keywords
active material
electrode active
electrode
material layer
lithium ion
Prior art date
Application number
PCT/JP2019/038037
Other languages
English (en)
Japanese (ja)
Inventor
和徳 小関
純之介 秋池
Original Assignee
積水化学工業株式会社
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 積水化学工業株式会社 filed Critical 積水化学工業株式会社
Priority to JP2020545759A priority Critical patent/JP6876880B2/ja
Publication of WO2020067379A1 publication Critical patent/WO2020067379A1/fr

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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
    • 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
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • 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
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • 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

Abstract

La présente invention concerne une électrode (10) pour accumulateurs lithium-ion qui comporte un collecteur de courant (20) et une couche de matériau actif d'électrode (30) qui est disposée sur le collecteur de courant et qui inclut un matériau actif d'électrode et un liant. Au moins une partie d'une extrémité (31) de la couche de matériau actif d'électrode (30) est formée à partir d'une section inclinée (31) dans laquelle l'épaisseur décroît à mesure que la distance à une section centrale (32) de la couche de matériau actif d'électrode (30) croît. Un facteur de bord représenté par le ratio (W/T) de la largeur (W) de la section inclinée (31) par rapport à l'épaisseur (T) de la couche de matériau actif d'électrode (30) est supérieur ou égal à 3, et la largeur (W) de la section inclinée (31) est inférieure à 1 000 µm. Un accumulateur lithium-ion selon la présente invention comporte l'électrode pour accumulateurs lithium-ion. La présente invention rend possible de réaliser une électrode pour accumulateurs lithium-ion permettant un fort taux d'utilisation d'électrode et la suppression de l'apparition de perte de poudre, et un accumulateur lithium-ion comportant l'électrode.
PCT/JP2019/038037 2018-09-28 2019-09-26 Électrode pour accumulateurs lithium-ion, et accumulateur lithium-ion WO2020067379A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020545759A JP6876880B2 (ja) 2018-09-28 2019-09-26 リチウムイオン二次電池用電極、及びリチウムイオン二次電池

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018185515 2018-09-28
JP2018-185515 2018-09-28

Publications (1)

Publication Number Publication Date
WO2020067379A1 true WO2020067379A1 (fr) 2020-04-02

Family

ID=69949630

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/038037 WO2020067379A1 (fr) 2018-09-28 2019-09-26 Électrode pour accumulateurs lithium-ion, et accumulateur lithium-ion

Country Status (3)

Country Link
JP (1) JP6876880B2 (fr)
TW (1) TW202034560A (fr)
WO (1) WO2020067379A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113066954A (zh) * 2021-03-12 2021-07-02 珠海冠宇电池股份有限公司 一种负极片及其应用

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240001927A (ko) 2022-06-28 2024-01-04 에스케이온 주식회사 리튬 이차 전지
KR20240001926A (ko) 2022-06-28 2024-01-04 에스케이온 주식회사 리튬 이차 전지용 음극의 제조 방법 및 리튬 이차 전지
KR20240001928A (ko) 2022-06-28 2024-01-04 에스케이온 주식회사 리튬 이차 전지

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015064586A1 (fr) * 2013-10-30 2015-05-07 日産自動車株式会社 Électrode et cellule ayant une électrode
JP2015146237A (ja) * 2014-02-03 2015-08-13 株式会社豊田自動織機 電池の製造方法
JP2016207286A (ja) * 2015-04-15 2016-12-08 日産自動車株式会社 電極および電池

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001076712A (ja) * 1999-09-06 2001-03-23 Toyota Central Res & Dev Lab Inc 電池用電極ペーストの塗布方法
JP2011065797A (ja) * 2009-09-16 2011-03-31 Daicel Chemical Industries Ltd リチウムイオン電池の負極材の集電体に対する密着性向上剤
JP2012129083A (ja) * 2010-12-16 2012-07-05 Hitachi Vehicle Energy Ltd 非水電解液二次電池
CN104303344B (zh) * 2012-06-11 2018-10-02 Nec能源元器件株式会社 电极制造方法
JPWO2016067706A1 (ja) * 2014-10-27 2017-08-31 Ｎｅｃエナジーデバイス株式会社 二次電池用電極の製造方法、二次電池用電極、および二次電池

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015064586A1 (fr) * 2013-10-30 2015-05-07 日産自動車株式会社 Électrode et cellule ayant une électrode
JP2015146237A (ja) * 2014-02-03 2015-08-13 株式会社豊田自動織機 電池の製造方法
JP2016207286A (ja) * 2015-04-15 2016-12-08 日産自動車株式会社 電極および電池

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113066954A (zh) * 2021-03-12 2021-07-02 珠海冠宇电池股份有限公司 一种负极片及其应用
CN113066954B (zh) * 2021-03-12 2023-02-28 珠海冠宇电池股份有限公司 一种负极片及其应用

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Publication number Publication date
JPWO2020067379A1 (ja) 2021-02-15
TW202034560A (zh) 2020-09-16
JP6876880B2 (ja) 2021-05-26

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