WO2021135922A9 - Lithium-ion battery - Google Patents

Lithium-ion battery Download PDF

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Publication number
WO2021135922A9
WO2021135922A9 PCT/CN2020/136345 CN2020136345W WO2021135922A9 WO 2021135922 A9 WO2021135922 A9 WO 2021135922A9 CN 2020136345 W CN2020136345 W CN 2020136345W WO 2021135922 A9 WO2021135922 A9 WO 2021135922A9
Authority
WO
WIPO (PCT)
Prior art keywords
negative electrode
silicon
lithium
structural formula
active material
Prior art date
Application number
PCT/CN2020/136345
Other languages
French (fr)
Chinese (zh)
Other versions
WO2021135922A1 (en
Inventor
钱韫娴
林雄贵
胡时光
邓永红
孙桂岩
Original Assignee
深圳新宙邦科技股份有限公司
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 深圳新宙邦科技股份有限公司 filed Critical 深圳新宙邦科技股份有限公司
Publication of WO2021135922A1 publication Critical patent/WO2021135922A1/en
Publication of WO2021135922A9 publication Critical patent/WO2021135922A9/en

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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
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • 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
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0567—Liquid materials characterised by the additives
    • 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
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0568—Liquid materials characterised by the solutes
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The present invention relates to the technical field of new energy, and particularly relates to a lithium-ion battery. The lithium-ion battery comprises a positive electrode, a negative electrode, a separator, and a non-aqueous electrolytic solution; the negative electrode comprises a negative electrode active material, and the negative electrode active material contains a silicon-based material; the non-aqueous electrolytic solution comprises a cyclic disulfonic acid ester compound as represented by structural formula 1 and an unsaturated phosphate compound as represented by structural formula 2, and the components of SEI films formed by the structural formula 1 and the structural formula 2 on a silicon-based negative electrode intersect each other and influence each other, and finally form a protective film of a Mosaic model. The protective film not only effectively conducts lithium ions and consumes gas generated during a cycle, but also enhances contact of a silicon-based active material, inhibits a volume effect thereof, reduces the occurrence of side reactions, and effectively protects a silicon-based negative electrode interface, thereby improving the swelling and impedance growth of the battery during the cycle, and improving the cycle performance of the lithium-ion battery having the silicon-based active material at the negative electrode.
PCT/CN2020/136345 2019-12-31 2020-12-15 Lithium-ion battery WO2021135922A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911409858.2A CN113130970B (en) 2019-12-31 2019-12-31 Lithium ion battery
CN201911409858.2 2019-12-31

Publications (2)

Publication Number Publication Date
WO2021135922A1 WO2021135922A1 (en) 2021-07-08
WO2021135922A9 true WO2021135922A9 (en) 2022-05-19

Family

ID=76686561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/136345 WO2021135922A1 (en) 2019-12-31 2020-12-15 Lithium-ion battery

Country Status (2)

Country Link
CN (1) CN113130970B (en)
WO (1) WO2021135922A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114507257B (en) * 2021-06-07 2023-04-18 华南师范大学 Fluorinated cyclic phosphorus-containing molecule and application thereof
CN114335718B (en) * 2021-11-24 2024-07-26 惠州市豪鹏科技有限公司 Nonaqueous electrolyte, preparation method thereof and secondary battery
CN115189029B (en) * 2022-09-13 2023-01-17 深圳新宙邦科技股份有限公司 Lithium ion battery

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4985041B2 (en) * 2007-03-30 2012-07-25 Ｊｓｒ株式会社 Aromatic sulfonate esters and sulfonated polyarylene polymers
CN102742064B (en) * 2010-02-10 2015-11-25 Nec能源元器件株式会社 Non-aqueous electrolytic solution, and the lithium rechargeable battery with described non-aqueous electrolytic solution
JP5781293B2 (en) * 2010-11-16 2015-09-16 株式会社Adeka Non-aqueous electrolyte secondary battery
JPWO2013161774A1 (en) * 2012-04-27 2015-12-24 日本電気株式会社 Lithium secondary battery
CN103151559A (en) * 2013-02-05 2013-06-12 深圳新宙邦科技股份有限公司 Non-aqueous electrolyte solution for lithium ion battery and corresponding lithium ion battery
JP5811311B2 (en) * 2013-09-26 2015-11-11 三菱化学株式会社 Non-aqueous electrolyte and non-aqueous electrolyte battery using the same
JP6607695B2 (en) * 2015-05-01 2019-11-20 三井化学株式会社 Nonaqueous electrolyte for battery and lithium secondary battery

Also Published As

Publication number Publication date
WO2021135922A1 (en) 2021-07-08
CN113130970B (en) 2023-07-11
CN113130970A (en) 2021-07-16

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