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发明公开
CN103782423A 非水电解质二次电池的正极活性物质及非水电解质二次电池 有权

非水电解质二次电池的正极活性物质及非水电解质二次电池
摘要：
本发明提供能够改善非水电解质二次电池的输出功率特性的正极活性物质。非水电解质二次电池(1)的正极活性物质含有第一正极活性物质和第二正极活性物质。对于第一正极活性物质而言，钴的含量按过渡金属中的原子百分率计为15%以上。对于第二正极活性物质而言，钴的含量按过渡金属中的原子百分率计为5%以下。第一正极活性物质的平均二次粒径r1小于第二正极活性物质的平均二次粒径r2。
摘要（英）：

Provided is a positive electrode active material capable of improving the output characteristics of a non-aqueous electrolyte secondary cell. The positive electrode active material of the non-aqueous electrolyte secondary cell (1) includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material has a cobalt content equal to or greater than 15% in terms of the atomic percentage in the transition metals. The second positive electrode active material has a cobalt content equal to or less than 5% in terms of the atomic percentage in the transition metals. The average secondary particle diameter (r1) of the first positive electrode active material is less than the average secondary particle diameter (r2) of the second positive electrode active material.

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