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    • 9. 发明授权
    • Nonaqueous electrolyte secondary battery
    • 非水电解质二次电池
    • US06468693B1
    • 2002-10-22
    • US09628279
    • 2000-07-28
    • Norio TakamiTakahisa Ohsaki
    • Norio TakamiTakahisa Ohsaki
    • H01M204
    • H01M2/0275H01M2/0287H01M4/131H01M4/525H01M4/587H01M10/0525H01M10/0565H01M10/0569
    • The present invention provides a nonaqueous electrolyte secondary battery, comprising a jacket having a wall thickness not larger than 0.25 mm, a positive electrode housed in the jacket and containing a positive electrode active material, a negative electrode housed in the jacket and containing a negative electrode active material, and a nonaqueous electrolyte housed in the jacket, wherein the positive electrode active material comprises at least one kind of oxide selected from the group consisting of an oxide containing an element M, Li and Ni and an oxide containing an element M, Li, Ni and Co, the element M being at least one element selected from the group consisting of Al, B, Sn and Nb, and the pH of the positive electrode active material falls within a range of between 10 and 12.
    • 本发明提供一种非水电解质二次电池,其包括壁厚不大于0.25mm的护套,容纳在护套中并含有正极活性物质的正极,负极容纳在护套中并含有负极 活性物质和容纳在所述护套中的非水电解质,其中所述正极活性物质包含选自由含有元素M,Li和Ni的氧化物和含有元素M的氧化物中选择的至少一种氧化物,Li ,Ni和Co中,元素M是选自Al,B,Sn和Nb中的至少一种元素,并且正极活性物质的pH在10和12之间的范围内。