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Title:
LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/055794
Kind Code:
A1
Abstract:
A lithium ion battery, comprising a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein the negative electrode comprises a negative electrode material layer containing a silicon-based material, and a phosphorus-containing inactive substance layer is formed on the surface of the negative electrode material layer. The non-aqueous electrolyte comprises a lithium salt, an organic solvent, and an additive of a compound of structural formula, n is 0 or 1, and X is selected from formula 2 or formula 3. R1 and R2 are independently selected from H, halogen, unsubstituted or halogen-substituted C1-5 hydrocarbyl, formula 4, formula 5, and formula 6. X, R1, and R2 contain at least one sulfur atom.

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Inventors:
HU SHIGUANG (CN)
QIAN YUNXIAN (CN)
SUN GUIYAN (CN)
XIANG XIAOXIA (CN)
LIN XIONGGUI (CN)
Application Number:
PCT/CN2023/113028
Publication Date:
March 21, 2024
Filing Date:
August 15, 2023
Export Citation:
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Assignee:
SHENZHEN CAPCHEM TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0567; H01M10/0525
Domestic Patent References:
WO2022111344A12022-06-02
WO2021135922A12021-07-08
Foreign References:
CN115189029A2022-10-14
CN114497692A2022-05-13
CN115036572A2022-09-09
CN109921092A2019-06-21
EP3979386A12022-04-06
Attorney, Agent or Firm:
SHENZHEN ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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