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发明公开
CN103531838A 非水电解质二次电池及其制造方法 有权

非水电解质二次电池及其制造方法
摘要：
本发明的一个形态是提供一种非水电解质二次电池，其具备：正极、含有含钛氧化物的负极以及非水电解质。非水电解质含有选自二氟磷酸和一氟磷酸中的至少一种以及一氧化碳。一氧化碳的质量浓度相对于二氟磷酸和一氟磷酸的质量浓度之和的比例为0.1%～5%的范围。
摘要（英）：

According to one embodiment, there is provided a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode containing a titanium-containing oxide, and a nonaqueous electrolyte. The nonaqueous electrolyte contains carbon monoxide and at least one selected from difluorophosphoric acid and monofluorophosphoric acid. The ratio of the mass concentration of carbon monoxide to the sum of the mass concentrations of difluorophosphoric acid and monofluorophosphoric acid is in the range of 0.1 to 5%.

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