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US 2022/0029151 A1Published application
Negative electrode active material for secondary batteries, and secondary battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYosuke Sato, Yohei Uchiyama, Taisuke Asano
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Abstract
A negative electrode active material for a secondary battery includes a silicate composite particle. The silicate composite particle contains silicate phases, silicon particles dispersed in the silicate phases, and a carbon phase. The silicate phases contain at least one selected from the group consisting of an alkali metal and an alkaline earth metal. At least parts of the carbon phase coat at least parts of surfaces of the silicon particles.
Claims6
A negative electrode active material for a secondary battery. comprising a silicate composite particle,
- wherein the silicate composite particle contains:
- silicate phases;
- silicon particles dispersed in each of the silicate phases;
- and a carbon phase,
- the silicate phases contain at least one selected from the group consisting of an alkali metal and an alkaline earth metal, and
- at least parts of the carbon phase coat at least parts of surfaces of the silicon particles.
3 more elements
Dependencies are inferred from the claim text.