发明名称 |
METHOD FOR SEPARATING POSITIVE-POLE ACTIVE SUBSTANCE AND METHOD FOR RECOVERING VALUABLE METALS FROM LITHIUM ION BATTERY |
摘要 |
The present invention aims at improving a recovery rate of a positive-pole active substance and preventing a recovery loss of valuable metals when a positive-pole active substance is separated from a lithium ion battery. In the present invention, a material resulting from battery dismantling obtained by dismantling a lithium ion battery is stirred using a surfactant solution, whereby a positive-pole active substance is separated from a positive-electrode substrate. Also, it is preferable that an alkaline solution is added to a positive-electrode material of a material resulting from battery dismantling, thereby dissolving a positive-electrode substrate to which a positive-pole active substance adheres to obtain a slurry containing the positive-pole active substance, and a surfactant solution is added to the slurry to disperse the positive-pole active substance in the slurry, whereby the positive-pole active substance is separated from the alkaline solution. |
申请公布号 |
EP2653573(A4) |
申请公布日期 |
2016.06.01 |
申请号 |
EP20110848381 |
申请日期 |
2011.12.14 |
申请人 |
SUMITOMO METAL MINING CO., LTD. |
发明人 |
KUDO, KEIJI;ISHIDA, HITOSHI;ASANO, SATOSHI;KAWAKAMI, YUKIE |
分类号 |
C22B7/00;C22B1/00;C22B3/04;C22B23/00;H01M10/54 |
主分类号 |
C22B7/00 |
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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