发明授权
US09312581B2 Method for recycling lithium batteries and/or electrodes of such batteries
有权
用于回收这种电池的锂电池和/或电极的方法
- 专利标题: Method for recycling lithium batteries and/or electrodes of such batteries
- 专利标题(中): 用于回收这种电池的锂电池和/或电极的方法
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申请号: US14343651申请日: 2012-09-05
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公开(公告)号: US09312581B2公开(公告)日: 2016-04-12
- 发明人: Richard Laucournet , Sandrine Barthelemy , Nathalie Diaferia
- 申请人: Richard Laucournet , Sandrine Barthelemy , Nathalie Diaferia
- 申请人地址: FR Paris
- 专利权人: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- 当前专利权人: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- 当前专利权人地址: FR Paris
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: FR1157939 20110907
- 国际申请: PCT/IB2012/054581 WO 20120905
- 国际公布: WO2013/035048 WO 20130314
- 主分类号: H01M10/54
- IPC分类号: H01M10/54 ; C22B7/00 ; C22B26/12 ; H01M4/131 ; H01M10/052 ; H01M4/485 ; H01M4/58
摘要:
The invention relates to a method for recycling lithium batteries and more particularly batteries of the Li-ion type and the electrodes of such batteries.This method for recycling lithium battery electrodes and/or lithium batteries comprises the following steps: a) grinding of said electrodes and/or of said batteries, b) dissolving the organic and/or polymeric components of said electrodes and/or of said batteries in an organic solvent, c) separating the undissolved metals present in the suspension obtained in step b), d) filtering the suspension obtained in step c) through a filter press, e) recovering the solid mass retained on the filter press in step d), and suspending this solid mass in water, f) recovering the material that sedimented or coagulated in step e), resuspending this sedimented material in water and adjusting the pH of the suspension obtained to a pH below 5, preferably below 4, g) filtering the suspension obtained in step f) on a filter press, and h) separating, on the one hand, the iron by precipitation of iron phosphates, and on the other hand the lithium by precipitation of a lithium salt.The method of the invention finds application in the field of recycling of used batteries, in particular.
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