公开(公告)号：US20240304883A1

公开(公告)日：2024-09-12

申请号：US18598887

申请日：2024-03-07

申请人： Ascend Elements, Inc.

发明人： Kee-Chan Kim ,  Eric Gratz ,  Benoit Tranape

IPC分类号： H01M10/54 ,  B01D61/02 ,  B01D61/04 ,  B09B3/70 ,  B09B3/80 ,  C01D15/02 ,  C01D15/08 ,  C01G53/00 ,  C01G53/10 ,  B09B101/16

CPC分类号： H01M10/54 ,  B01D61/027 ,  B01D61/04 ,  B09B3/70 ,  B09B3/80 ,  C01D15/02 ,  C01D15/08 ,  C01G53/003 ,  C01G53/10 ,  B09B2101/16

摘要： A recycling method for generating purified lithium salts from a recycling stream of lithium-ion (Li-ion) batteries includes leaching black mass from the recycling stream in an aqueous solution of an oxidizing agent. Delithiated black mass is filtered from the aqueous solution to generate a Li-rich leach solution, which is subjected to nanofiltration to form a nanofiltration permeate from which the purified lithium salt is obtained.