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    • 10. 发明授权
    • Nonaqueous secondary battery
    • 非水二次电池
    • US08790829B2
    • 2014-07-29
    • US13393455
    • 2011-09-08
    • Satoshi KonoMasayuki YamadaAkira InabaKazutaka Matsuo
    • Satoshi KonoMasayuki YamadaAkira InabaKazutaka Matsuo
    • H01M4/13
    • H01M4/587H01M4/364H01M4/386H01M4/505H01M4/525H01M10/0525
    • The present invention provides a nonaqueous secondary battery with a high capacity, an excellent level of safety, and excellent charge-discharge cycle characteristics. The negative electrode contains, as negative electrode active materials, a graphite carbon material and a material containing Si as a constituent element, and the positive electrode includes, as a positive electrode active material, a lithium-containing composite oxide represented by the following general composition formula (1) and containing sulfur in a range of 0.01 mass % to 0.5 mass %: Li1+yMO2  (1) where y satisfies −0.3≦y
    • 本发明提供一种容量大,安全性优异,充放电循环特性优异的非水系二次电池。 负极包含作为负极活性物质的石墨碳材料和含有Si作为构成元素的材料,正极包含作为正极活性物质的由以下总体组成表示的含锂复合氧化物 式(1),含有0.01质量%〜0.5质量%范围的硫:Li1 + yMO2(1)其中y满足-0.3&nlE; y <0.3,M表示包含Ni,Co, Mn,Mg和Al,Ba,Sr,Ti和Zr中的至少一种,并且当a,b,c和d分别表示Ni,Co,Mn和Mg时,以mol%表示,e表示Al, 构成M,a,b,c,d和e的所有元素的Ba,Sr,Ti和Zr的摩尔%满足70&nlE; a&nlE; 97,0.5