发明名称 |
Non-aqueous secondary battery and method for producing the same |
摘要 |
A non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode material mixture layer containing a lithium-containing transition metal oxide. The negative electrode includes a negative electrode material mixture layer and a porous layer containing an insulating material unreactive with lithium formed thereon. The negative electrode material mixture layer includes a negative electrode material including a core and a carbon covering layer covering a surface of the core. The core includes a material containing silicon and oxygen at an atomic ratio x of the oxygen to the silicon of 0.5≦̸×≦̸1.5. The material containing silicon and oxygen has a peak at least in a range of 1850 to 1860 eV in an X-ray absorption near edge structure spectrum at the K absorption edge of Si in a state in which discharge of the battery is finished. |
申请公布号 |
US8216719(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20070704954 |
申请日期 |
2007.02.12 |
申请人 |
YAMADA MASAYUKI;UCHITOMI KAZUTAKA;SHI QIAO;FUKUNAGA HIROSHI;MATSUMOTO KAZUNOBU;HITACHI MAXELL ENERGY, LTD. |
发明人 |
YAMADA MASAYUKI;UCHITOMI KAZUTAKA;SHI QIAO;FUKUNAGA HIROSHI;MATSUMOTO KAZUNOBU |
分类号 |
H01M4/13;H01M4/02;H01M4/134;H01M4/58;H01M4/60 |
主分类号 |
H01M4/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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