发明名称 |
Nonaqueous electrolyte battery, battery pack and vehicle |
摘要 |
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode, a separator and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material having a Lithium ion insertion potential of 0.4 V (vs. Li/Li+) or more. The separator is provided between the positive electrode and the negative electrode. The separator has a porosity of 50% or more and a pore diameter distribution in which a median diameter is larger than a mode diameter. The porosity and the pore diameter distribution are measured by mercury porosimetry. A surface roughness of the negative electrode is larger than the mode diameter.
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申请公布号 |
US7833664(B2) |
申请公布日期 |
2010.11.16 |
申请号 |
US20070687844 |
申请日期 |
2007.03.19 |
申请人 |
KABUSHIKI KAISHATOSHIBA |
发明人 |
FUJITA YUMI;INAGAKI HIROKI;SARUWATARI HIDESATO;TAKAMI NORIO |
分类号 |
H01M2/16;H01M4/58;H01M6/10 |
主分类号 |
H01M2/16 |
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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