Negative electrode active material for secondary battery, and secondary battery
JPWO2025115774A1Undetermined Publication Date: 2025-06-05
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Patent Information
- Application Number
- JP2025561071
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Priority Date
- 2023-11-28
- Filing Date
- 2024-11-22
- Publication Date
- 2025-06-05
Abstract
A negative electrode active material disclosed herein is a negative electrode active material for a secondary battery. The negative electrode active material (20) comprises composite particles (23). The composite particles (23) include a carbon phase (21) and a silicon phase (22) dispersed in the carbon phase (21). Fluorine is present on at least a portion of the surface of the silicon phase (22).
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