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US 12,609,305 B2Granted
Secondary battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYosuke Sato, Yusuke Saito, Naoki Seki
Life of this patent
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Abstract
A secondary battery including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a carbon material, a first silicon-containing material, and a second silicon-containing material. The first silicon-containing material includes a silicate phase, and first silicon phases dispersed in the silicate phase. The second silicon-containing material includes a carbon phase, and second silicon phases dispersed in the carbon phase.
Claims10
A secondary battery, comprising:
- a positive electrode;
- a negative electrode;
- and an electrolyte, wherein
- the negative electrode includes a carbon material, a first silicon-containing material, and a second silicon-containing material,
- the first silicon-containing material includes a silicate phase, and first silicon phases dispersed in the silicate phase, and
- the second silicon-containing material includes a carbon phase, and second silicon phases dispersed in the carbon phase, and the second silicon-containing material is free of silicate phase.
3 more elements
A secondary battery, comprising:
- a positive electrode;
- a negative electrode;
- and an electrolyte, wherein
- the negative electrode includes a carbon material, a first silicon-containing material, and a second silicon-containing material,
- the first silicon-containing material includes a silicate phase, and first silicon phases dispersed in the silicate phase, and
- the second silicon-containing material includes a carbon phase, and second silicon phases dispersed only in the carbon phase.
3 more elements
Dependencies are inferred from the claim text.