Negative electrode and secondary battery

DE202023003222U1Undetermined Publication Date: 2026-07-30LG ENERGY SOLUTION LTD
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Patent Information

Application Number
DE202023003222
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2023-10-12
Filing Date
2023-10-13
Publication Date
2026-07-30
Estimated Expiration
2033-10-31
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Abstract

Negative electrode for a secondary battery, comprising: a current collector; a first active material layer of the negative electrode provided on the current collector and comprising a silicon-carbon composite; and a second active material layer of the negative electrode provided on the first active material layer of the negative electrode and comprising a silicon oxide, wherein a ratio (D50,2nd / D50,1st) of an average particle diameter (D50,2nd) of the second active material layer of the negative electrode to an average particle diameter (D50,1st) of the first active material layer of the negative electrode is 0.75 to 1.5, wherein the average particle diameter is measured by a laser diffraction method.
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Citation Information

Patent Citations

  • Negative electrode and secondary battery

    KR1020240052676A

  • KR20220132114A