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US 2019/0319261 A1Published application
Negative electrode material and nonaqueous electrolyte secondary battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
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Abstract
Disclosed is a negative electrode material including: a lithium silicate phase that contains a lithium silicate; and silicon particles that are dispersed in the lithium silicate phase, wherein the silicon particles have a crystallite size of 10 nm or more, and the lithium silicate has a composition represented by the following formula: Li2Si2O5.(x−2)SiO2, where 2<x≤18 is satisfied.
Claims8
A negative electrode material comprising:
- a lithium silicate phase;
- and
- silicon particles that are dispersed in the lithium silicate phase,
- wherein the silicon particles have a crystallite size of 10 nm or more, and
- the lithium silicate phase has a composition represented by the following formula:
- Li2Si2O5.(x−2)SiO2, where 2<x≤18 is satisfied.
3 more elements
Dependencies are inferred from the claim text.