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US 2023/0411618 A1Published application
Negative electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYusuke Saito, Yosuke Sato, Naoki Seki
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Abstract
A negative electrode active material for a non-aqueous electrolyte secondary battery includes composite particles containing a lithium silicate phase, a silicon phase dispersed in the lithium silicate phase, and a crystalline phase of silicon dioxide dispersed in the lithium silicate phase. The crystalline phase of silicon dioxide contains β-cristobalite and quartz.
Claims7
A negative electrode active material for a non-aqueous electrolyte secondary battery, comprising:
- composite particles containing
- a lithium silicate phase,
- a silicon phase dispersed in the lithium silicate phase, and
- a crystalline phase of silicon dioxide dispersed in the lithium silicate phase, wherein the crystalline phase of silicon dioxide contains β-cristobalite and quartz.
1 more element
Dependencies are inferred from the claim text.