发明名称 |
Secondary battery, battery pack and car |
摘要 |
A secondary battery includes a positive electrode, a negative electrode containing a metal compound having a lithium ion absorption potential of 0.2V (vs.Li/Li+) or more, a separator and a nonaqueous electrolyte. The separator is provided between the positive electrode and the negative electrode. The separator comprises cellulose fibers and pores having a specific surface area of 5 to 15 m2/g. The separator has a porosity of 55 to 80%, and a pore diameter distribution having a first peak in a pore diameter range of 0.2 μm (inclusive) to 2 μm (exclusive) and a second peak in a pore diameter range of 2 to 30 μm. |
申请公布号 |
US8192859(B2) |
申请公布日期 |
2012.06.05 |
申请号 |
US20080212257 |
申请日期 |
2008.09.17 |
申请人 |
TAKAMI NORIO;INAGAKI HIROKI;KUBOKI TAKASHI;KABUSHIKI KAISHA TOSHIBA |
发明人 |
TAKAMI NORIO;INAGAKI HIROKI;KUBOKI TAKASHI |
分类号 |
H01M2/14 |
主分类号 |
H01M2/14 |
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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