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发明授权
US09246169B2 Positive electrode active material for nonaqueous electrolyte secondary battery, method for making the same, positive electrode including the same, and battery including the positive electrode 有权
非水电解质二次电池用正极活性物质，其制造方法，含有该正极的正极活性物质，以及含有该正极的电池

Positive electrode active material for nonaqueous electrolyte secondary battery, method for making the same, positive electrode including the same, and battery including the positive electrode
摘要：
A positive electrode active material for a nonaqueous electrolyte secondary battery includes a positive electrode active material particle and a compound containing a rare earth element and a carbonate, the compound having a particle size of 1 to 100 nm and being adhered to a surface of the positive electrode active material particle. The ratio of the compound relative to the positive electrode active material particle is 0.005% to 0.4% by mass on a rare earth element basis. The positive electrode active material particle is composed of a lithium transition metal oxide having a layered structure.
摘要（中）：

非水电解质二次电池用正极活性物质包括正极活性物质粒子和含有稀土元素和碳酸酯的化合物，所述化合物的粒径为1〜100nm，并附着于阳性的表面 电极活性物质颗粒。 化合物相对于正极活性物质粒子的比例，相对于稀土元素为0.005〜0.4质量％。 正极活性物质粒子由具有层状结构的锂过渡金属氧化物构成。

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