发明名称 |
Non-aqueous electrolyte battery |
摘要 |
The disclosure describes a non-aqueous electrolyte battery with an improved cycle life. The non-aqueous electrolyte battery includes a positive electrode including a positive electrode layer, a negative electrode including a negative electrode layer, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte containing a lithium salt. The negative electrode layer may contain a negative electrode active material which can insert and release lithium ions at 0.4 V or more (V.S. Li/Li + ). The lithium salt may contains LiPF 6 with a concentration of less than 50% (including 0%). The non-aqueous electrolyte battery may meet the following two formulas: 1 ‰¤ Q2/Q1 (I) and 1 ‰¤ C/A ‰¤ 2 (II), where Q1 represents a capacitance in a facing portion of the negative electrode, Q2 represents a capacitance in the facing portion of the positive electrode, A represents an area of a surface including the facing portion of the negative electrode of the negative electrode layer, and C represents an area of a surface including the facing portion of the positive electrode of the positive electrode layer. |
申请公布号 |
EP2421080(B1) |
申请公布日期 |
2016.01.06 |
申请号 |
EP20110177760 |
申请日期 |
2011.08.17 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
WATANABE, HIDETOSHI;ISHII, HARUCHIKA;INAGAKI, HIROKI;SHIKOTA, MASATAKA;ARIKAWA, TOSHIHIDE;TAHARA, HIROTADA;NEWTON, KAZUKO;HIRUMA, TERUO;ASAMI, YOSHIAKI;KIKUMA, YUICHI |
分类号 |
H01M10/052;H01M4/58 |
主分类号 |
H01M10/052 |
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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