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发明授权
CN106030869B 负极活性物质材料、负极和电池 有权

负极活性物质材料、负极和电池
摘要：
提供能够改善单位体积的放电容量和/或充放电循环特性的负极活性物质材料。本实施方式的负极活性物质材料含有合金相和陶瓷。合金相在释放金属离子时或在吸收金属离子时发生热弹性型无扩散相变。陶瓷分散于合金相中。合金相中的陶瓷的含量相对于合金相和前述陶瓷的总质量为超过0～50质量％。
摘要（英）：

Provided is a negative electrode active material that can improve the discharge capacity per volume and/or charge-discharge cycle characteristics. The negative electrode active material according to the present embodiment contains an alloy phase and ceramics. The alloy phase undergoes thermoelastic diffusionless transformation when releasing or occluding metal ions. The ceramics is dispersed in the metal phase. The content of ceramics in the alloy phase is more than 0 to 50 mass% with respect to the total mass of the alloy phase and the ceramics.

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