CPC H01M 4/364 (2013.01) [H01M 4/134 (2013.01); H01M 4/136 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 4/5825 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] | 8 Claims |
1. A negative electrode active material for a non-aqueous electrolyte secondary battery, comprising base particles,
each of the base particles comprising: a silicate phase including Li, Si, MX, wherein MX is one or more elements other than an alkali metal, an alkaline earth metal, and Si and is selected from the group consisting of B, Bi, Sb, Ge, Zr, P, V, W and La,
wherein, in the silicate phase, a Li content is 3 to 45 mol %, a Si content is 40 to 78 mol %, and an MX content is 1 to 40 mol %, each based on the total amount of elements in the silicate phase other than oxygen.
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