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US 2024/0405201 A1Published application
Secondary battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYosuke Sato, Keita Okazaki, Yukiho Okuno
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Abstract
A secondary battery disclosed herein includes a positive electrode, and a negative electrode containing a negative electrode active material. The negative electrode active material contains a carbon material and a silicon-containing material. The average particle diameter of the silicon-containing material is smaller than the average particle diameter of the carbon material. The average circularity of the silicon-containing material is smaller than the average circularity of the carbon material.
Claims10
A secondary battery comprising:
- a positive electrode;
- and
- a negative electrode containing a negative electrode active material,
- wherein the negative electrode active material contains a carbon material and a silicon-containing material,
- an average particle diameter of the silicon-containing material is smaller than an average particle diameter of the carbon material, and
- an average circularity of the silicon-containing material is smaller than an average circularity of the carbon material.
3 more elements
Dependencies are inferred from the claim text.