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发明授权
US07455933B2 Nonaqueous electrolyte secondary battery 有权
非水电解质二次电池

Nonaqueous electrolyte secondary battery
摘要：
A nonaqueous electrolyte secondary battery includes a nonaqueous electrolyte and a positive electrode including an active material containing lithium composite oxide powder, the lithium composite oxide powder includes secondary particles, exhibits a peak intensity ratio satisfying the following formula (4), satisfies the following formula (5), and has a particle distribution wherein a particle diameter at a volumetric cumulative frequency of 90% (D90) falls within the range of 10 to 25 m, and the nonaqueous electrolyte contains a sultone compound including a ring having at least one double bond; 2≦(I003/I104)
摘要（中）：

非水电解质二次电池包括非水电解质和包含含有锂复合氧化物粉末的活性物质的正极，所述锂复合氧化物粉末包括二次粒子，表现出满足下式（4）的峰强度比，满足下式（ 5），并且具有体积累积频率为90％（D90）的粒径在10〜25μm的范围内的粒子分布，非水电解质含有包含具有至少一个双键的环的磺内酯化合物 ; <？in-line-formula description =“In-line Formulas”end =“lead”？> 2 <=（I 003 / I < ）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.95 <=（X <= 1.02。 （5）<？in-line-formula description =“In-line Formulas”end =“tail”？>

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