公开(公告)号：US11978887B2

公开(公告)日：2024-05-07

申请号：US16643561

申请日：2018-08-30

申请人： Microvast Power Systems Co., LTD.

发明人： Bryan T. Yonemoto ,  Huijie Guo ,  Xiao Zhang ,  Zhifeng Zhang ,  Xuelei Sun ,  Tianshu Deng

IPC分类号： H01M4/36 ,  C01G53/00 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC分类号： H01M4/364 ,  C01G53/006 ,  C01G53/44 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028

摘要： A method of preparing cathode particles using a co-precipitation reaction in a reactor is disclosed. A feed stream (a) containing metal cations is fed into the reactor, and a feed stream (b) containing anions is fed into the reactor, wherein a ratio of the metal cations in the feed stream (a) is continuously changed from A1 at time t1 to A2 at time t2. The feed stream (a) and the feed stream (b) are contacted in the reactor to form precipitated precursor particles, and at least one transition metal component in the particle has a non-linear continuous concentration gradient profile over at least a portion along a thickness direction of the particle.

公开(公告)号：US10431819B2

公开(公告)日：2019-10-01

申请号：US15378031

申请日：2016-12-13

申请人： Microvast Power Systems Co., Ltd. ,  Ochem Chemical Co., Ltd.

发明人： Wenjuan Liu Mattis ,  Tianshu Deng ,  Ruanbing Hu ,  Chaofeng Ning

IPC分类号： H01B1/22 ,  H01B1/24 ,  H01M4/00 ,  H01M4/38 ,  H01M4/62 ,  H01M4/587 ,  C08F2/44 ,  C08F4/30 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  C08F120/06 ,  C08F2/16 ,  C08F222/02 ,  H01M4/02

摘要： The present invention provides a method for preparing an anode slurry used in a lithium ion battery. The method includes the following steps: providing at least one anode active material, at least one conductive agent, at least one monomer or a prepolymer and at least one solvent. Mixing the anode active material, the conductive agent and the monomer or the prepolymer with the solvent; dispersing uniformly to form a mixture. Adding an initiator into the mixture; polymerizing the monomer or the prepolymer at a certain temperature; and yielding the anode slurry. Besides, the present invention also provides an anode slurry prepared by the above method, and an anode plate prepared by the anode slurry, and a lithium ion battery including the anode plate.