WO2022163512A1 - 非水電解質二次電池 - Google Patents

非水電解質二次電池 Download PDF

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Publication number
WO2022163512A1
WO2022163512A1 PCT/JP2022/002126 JP2022002126W WO2022163512A1 WO 2022163512 A1 WO2022163512 A1 WO 2022163512A1 JP 2022002126 W JP2022002126 W JP 2022002126W WO 2022163512 A1 WO2022163512 A1 WO 2022163512A1
Authority
WO
WIPO (PCT)
Prior art keywords
negative electrode
winding
positive electrode
secondary battery
mixture layer
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.)
Ceased
Application number
PCT/JP2022/002126
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
文一 水越
伸宏 鉾谷
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP2022578317A priority Critical patent/JPWO2022163512A1/ja
Priority to CN202280010776.4A priority patent/CN116783754A/zh
Priority to US18/273,427 priority patent/US20240120553A1/en
Priority to EP22745733.0A priority patent/EP4287304A4/en
Publication of WO2022163512A1 publication Critical patent/WO2022163512A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • 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
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound 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
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/386—Silicon or alloys based on silicon
    • 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
    • H01M4/58—Selection 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
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • 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

  • a negative electrode exposed portion 44 is provided over the entire length of the current collector in the width direction at the winding inner end portion in the longitudinal direction of the negative electrode 12 .
  • the negative electrode exposed portion 44 is a portion to which the negative electrode lead 20 is connected, and is a portion where the surface of the negative electrode current collector 40 is not covered with the negative electrode mixture layer 42 .
  • the negative electrode exposed portion 44 is formed to be wider in the longitudinal direction than the width of the negative electrode lead 20 .
  • the negative electrode exposed portions 44 are preferably provided on both surfaces of the negative electrode 12 so as to overlap with each other in the thickness direction of the negative electrode 12 .
  • the average fiber length of fibrous carbon is preferably 0.1 ⁇ m to 40 ⁇ m, more preferably 0.3 ⁇ m to 20 ⁇ m, and particularly preferably 0.5 ⁇ m to 5 ⁇ m.
  • the average fiber length of fibrous carbon is calculated by measuring the length of 10 fibrous carbon fibers using a scanning electron microscope (hereinafter sometimes referred to as SEM) and calculating the average value thereof.
  • SEM scanning electron microscope
  • the length of fibrous carbon can be determined from a 50,000-fold SEM image (1024 ⁇ 1280 pixels) observed at an acceleration voltage of 5 kV.
  • the diameter of the fibrous carbon may be, for example, 1 nm to 100 nm. The diameter of fibrous carbon is calculated from the average value of ten fibrous carbon fibers measured by SEM.
  • binder contained in the negative electrode mixture layer 42 examples include styrene-butadiene rubber (SBR), nitrile-butadiene rubber (NBR), carboxymethylcellulose (CMC) or salts thereof, polyacrylic acid (PAA) or salts thereof ( PAA-Na, PAA-K, etc., and partially neutralized salts may also be used), polyvinyl alcohol (PVA), and the like.
  • the binder may also contain fluorine-based resins such as polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVdF), polyacrylonitrile (PAN), polyimide-based resins, acrylic-based resins, polyolefin-based resins, and the like. These may be used individually by 1 type, and may be used in combination of 2 or more types.

Landscapes

  • 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)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
PCT/JP2022/002126 2021-01-29 2022-01-21 非水電解質二次電池 Ceased WO2022163512A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2022578317A JPWO2022163512A1 (https=) 2021-01-29 2022-01-21
CN202280010776.4A CN116783754A (zh) 2021-01-29 2022-01-21 非水电解质二次电池
US18/273,427 US20240120553A1 (en) 2021-01-29 2022-01-21 Non-aqueous electrolyte secondary battery
EP22745733.0A EP4287304A4 (en) 2021-01-29 2022-01-21 SECONDARY BATTERY WITH NON-AQUEOUS ELECTROLYTE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021013581 2021-01-29
JP2021-013581 2021-01-29

Publications (1)

Publication Number Publication Date
WO2022163512A1 true WO2022163512A1 (ja) 2022-08-04

Family

ID=82654443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/002126 Ceased WO2022163512A1 (ja) 2021-01-29 2022-01-21 非水電解質二次電池

Country Status (5)

Country Link
US (1) US20240120553A1 (https=)
EP (1) EP4287304A4 (https=)
JP (1) JPWO2022163512A1 (https=)
CN (1) CN116783754A (https=)
WO (1) WO2022163512A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025501317A (ja) * 2022-10-21 2025-01-17 エルジー エナジー ソリューション リミテッド 負極組成物、これを含むリチウム二次電池用負極、および負極を含むリチウム二次電池

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011165388A (ja) 2010-02-05 2011-08-25 Panasonic Corp リチウムイオン二次電池用電極、前記電極を用いたリチウムイオン二次電池用電極群、前記電極群を用いたリチウムイオン二次電池
JP2011210384A (ja) * 2010-03-29 2011-10-20 Panasonic Corp 円筒型ニッケル水素蓄電池
JP2013191396A (ja) * 2012-03-14 2013-09-26 Hitachi Ltd 非水電解質二次電池、非水電解質二次電池モジュール
JP2015130298A (ja) * 2014-01-08 2015-07-16 トヨタ自動車株式会社 非水電解質二次電池
JP2017501546A (ja) * 2013-12-24 2017-01-12 イルジン エレクトリック カンパニー リミテッド リチウム二次電池用負極板

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4770426B2 (ja) * 2005-11-25 2011-09-14 トヨタ自動車株式会社 捲回型蓄電装置
JP5278989B2 (ja) * 2007-09-12 2013-09-04 Ｎｅｃエナジーデバイス株式会社 リチウムイオン二次電池
WO2015024004A1 (en) * 2013-08-16 2015-02-19 Envia Systems, Inc. Lithium ion batteries with high capacity anode active material and good cycling for consumer electronics
HUE072593T2 (hu) * 2018-11-19 2025-11-28 Lg Energy Solution Ltd Anód aktív anyag és az azt tartalmazó lítium szekunder akkumulátor
CN110350238A (zh) * 2019-07-03 2019-10-18 中兴高能技术有限责任公司 一种具有多孔梯度结构的全固态锂离子电池及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011165388A (ja) 2010-02-05 2011-08-25 Panasonic Corp リチウムイオン二次電池用電極、前記電極を用いたリチウムイオン二次電池用電極群、前記電極群を用いたリチウムイオン二次電池
JP2011210384A (ja) * 2010-03-29 2011-10-20 Panasonic Corp 円筒型ニッケル水素蓄電池
JP2013191396A (ja) * 2012-03-14 2013-09-26 Hitachi Ltd 非水電解質二次電池、非水電解質二次電池モジュール
JP2017501546A (ja) * 2013-12-24 2017-01-12 イルジン エレクトリック カンパニー リミテッド リチウム二次電池用負極板
JP2015130298A (ja) * 2014-01-08 2015-07-16 トヨタ自動車株式会社 非水電解質二次電池

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4287304A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025501317A (ja) * 2022-10-21 2025-01-17 エルジー エナジー ソリューション リミテッド 負極組成物、これを含むリチウム二次電池用負極、および負極を含むリチウム二次電池

Also Published As

Publication number Publication date
EP4287304A1 (en) 2023-12-06
EP4287304A4 (en) 2025-03-12
US20240120553A1 (en) 2024-04-11
CN116783754A (zh) 2023-09-19
JPWO2022163512A1 (https=) 2022-08-04

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