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CN101689631A 非水电解质二次电池和正极的制造方法 有权 转让

非水电解质二次电池和正极的制造方法
Abstract:
本发明提供一种非水电解质二次电池和正极的制造方法。正极物质由含锂层状氧化物构成。含锂层状氧化物包含属于空间组P6 3 mc的Li A Na B Mn x Co y O 2±α 和属于空间组Cmca的Li A Na B Mn x Co y O 2±α 中的任一种或两者。含锂层状氧化物以固溶体或混合物或它们两者的方式包含上述Li A Na B Mn x Co y O 2±α 在上述Li A Na B Mn x Co y O 2±α 中，0.5≤A≤1.2、0＜B≤0.01、0.40≤x≤0.55、0.40≤y≤0.55、0.80≤x+y≤1.10、并且0≤α≤0.3。
Abstract(English):

Disclosed is a positive electrode active material composed of a lithium-containing layered oxide. The lithium-containing layered oxide contains one or both of LiANaBMnxCoyO2+-a belonging to a space group of P63mc and LiANaBMnxCoyO2+-a belonging to a space group of Cmca. The lithium-containing layered oxide contains the LiANaBMnxCoyO2+-a in the form of a solid solution or a mixture, or both of them. In the LiANaBMnxCoyO2+-a, the following relations are satisfied: 0.5 <= A <= 1.2, 0 < B <= 0.01, 0.40 <= x <= 0.55, 0.40 <= y <= 0.55, 0.80 <= x + y <= 1.10, 0 <= a <= 0.3.

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