发明名称 |
LITHIUM-ION SECONDARY BATTERY AND ELECTRONIC DEVICE |
摘要 |
A lithium-ion secondary battery with high capacity is provided. Alternatively, a lithium-ion secondary battery with improved cycle characteristics is provided. To achieve this, an active material including a particle having a cleavage plane and a layer containing carbon covering at least part of the cleavage plane is provided. The particle having the cleavage plane contains lithium, manganese, nickel, and oxygen. The layer containing carbon preferably contains graphene. When a lithium-ion secondary battery is fabricated using an electrode including the particle having the cleavage plane at least part of which is covered with the layer containing carbon as an active material, the discharge capacity can be increased and the cycle characteristics can be improved. |
申请公布号 |
WO2015170216(A1) |
申请公布日期 |
2015.11.12 |
申请号 |
WO2015IB53041 |
申请日期 |
2015.04.27 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KAWAKAMI, TAKAHIRO;IKENUMA, TATSUYA;OCHIAI, TERUAKI;YOSHITOMI, SHUHEI;MOTOYOSHI, MAKO;MIYAKE, HIROYUKI;MOMMA, YOHEI;HIROHASHI, TAKUYA;SEO, SATOSHI |
分类号 |
H01M4/131;H01M4/36;H01M4/505;H01M4/525;H01M10/052 |
主分类号 |
H01M4/131 |
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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