NEGATIVE ELECTRODE MATERIAL AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
First Claim
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1. 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, andthe lithium silicate phase has a composition represented by the following formula;
Li2Si2O5.(x−
2)SiO2, where 2<
x≤
18 is satisfied.
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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.
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Citations
8 Claims
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1. A negative electrode material comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification