发明名称 |
Electric storage device |
摘要 |
An electric storage device having a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The positive electrode has a positive substrate layer, a positive composite layer containing a positive active material, and an undercoat layer located between the positive substrate layer and the positive composite layer. A density of the positive composite layer is 2.1 g/cm 3 or more and 2.7 g/cm 3 or less. The positive electrode has the rate of increase in sheet resistance after a solvent immersion test of 30% or less. The undercoat layer contains a binder selected from the group consisting of chitosan derivatives, cellulose derivatives and acrylic acid derivatives. |
申请公布号 |
EP2863456(A1) |
申请公布日期 |
2015.04.22 |
申请号 |
EP20140186611 |
申请日期 |
2014.09.26 |
申请人 |
GS YUASA INTERNATIONAL LTD. |
发明人 |
MIYAZAKI, AKIHIKO;MORI, SUMIO;KAKO, TOMONORI;NAKAI, KENTA |
分类号 |
H01M4/505;H01M4/525;H01M4/66;H01M10/0525 |
主分类号 |
H01M4/505 |
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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