公开(公告)号：EP4394940A1

公开(公告)日：2024-07-03

申请号：EP23194341.6

申请日：2023-08-30

申请人： Advanced Lithium Electrochemistry Co., Ltd.

发明人： Liao, Yung-Tsung ,  Cheng, Yu-Chun ,  Kuo, Chi-Huang

IPC分类号： H01M4/485 ,  G01N21/73 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58

CPC分类号： H01M2004/02820130101 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  Y02E60/10

摘要： A method for quality examination of cathode materials for lithium-ion batteries comprising steps of adding cathode material powders to a solution of a surfactant to form a cathode material mixture solution; transferring the cathode material mixture solution to ball milling; filtering the cathode material mixture through a 200-mesh sieve, measuring the weight of a first residue that does not pass through the sieve, and determining whether the weight of the first residue exceed a first threshold value; filtering the cathode material mixture through a 420-mesh sieve, measuring the weight of a second residue that does not pass through the sieve, and determining whether the weight of the second residue exceed a second threshold value; and analyzing the second residual and determining whether multiple metal elements exceed multiple threshold values.