- 专利标题： PROCESS FOR THE RECOVERY OF CATHODE MATERIALS IN THE RECYCLING OF BATTERIES
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申请号： US17601865申请日： 2020-04-14
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公开(公告)号： US20220149452A1公开(公告)日： 2022-05-12
- 发明人: Mahmood ALEMRAJABI , Ingrid KARLSSON , Ragnar SJÖDAHL , Emma NEHRENHEIM , Martina PETRANIKOVA , Cristian TUNSU
- 申请人： Northvolt AB
- 申请人地址： SE Stockholm
- 专利权人： Northvolt AB
- 当前专利权人： Northvolt AB
- 当前专利权人地址： SE Stockholm
- 优先权： SE1950468-7 20190415
- 国际申请： PCT/EP2020/060487 WO 20200414
- 主分类号： H01M10/54
- IPC分类号： H01M10/54 ; C22B3/06 ; C22B15/00 ; C22B3/00 ; C22B47/00 ; C22B26/12 ; C22B3/44 ; C22B7/00
摘要：
A process for removal of aluminium and iron in the recycling of rechargeable batteries comprising providing a leachate from black mass, adding phosphoric acid (H3PO4) to said leachate and adjusting the pH to form iron phosphate (FePO4) and aluminium phosphate (AlPO4), precipitating and removing the formed FePO4 and AlPO4, and forming a filtrate for further recovery of cathode metals, mainly NMC-metals and lithium.
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