专利检索 ap:("Lg Chem, Ltd.") AND inv:"LEE, June Woo" 第 1 页

1.

发明公开
CATHODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, AND CATHODE AND LITHIUM SECONDARY BATTERY EACH COMPRISING SAME 审中-公开

公开(公告)号：EP4283716A1

公开(公告)日：2023-11-29

申请号：EP22763646.1

申请日：2022-03-04

申请人： Lg Chem, Ltd.

发明人： KIM, Won Tae , LEE, June Woo , HA, Seoung Chul , LIM, Young Geun , JUNG, Da Seal , CHOI, So Jeong

IPC分类号： H01M4/36 , H01M4/525 , H01M4/505 , H01M4/62 , H01M10/052 , C01G53/00 , C01G23/00 , H01M4/02

摘要： The present invention relates to a positive electrode active material including a lithium composite transition metal oxide containing 70 atm% or more of nickel among total metallic elements excluding lithium, and a coating layer which is formed on a surface of the lithium composite transition metal oxide and includes titanium (Ti) and boron (B), wherein the Ti is included in an amount of 300 ppm to 800 ppm and the B is included in an amount of 500 ppm to 1,000 ppm based on a total weight of the positive electrode active material, and a method of preparing the same.

2.

发明公开
METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE COMPRISING SAME FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY 审中-公开

公开(公告)号：EP4282829A1

公开(公告)日：2023-11-29

申请号：EP22899063.6

申请日：2022-11-24

申请人： Lg Chem, Ltd.

发明人： YOU, Min Kyu , SHIN, Sun Sik , JIN, Joo Hong , LEE, June Woo , SHIN, Ji A , PARK, Min Joo

IPC分类号： C01G53/00 , H01M4/525 , H01M4/505 , H01M10/052

摘要： The present invention relates to a method of preparing a positive electrode active material having a high ratio of charge and discharge capacity at a charge end voltage of 4.1 V to 4.175 V to charge and discharge capacity at a charge end voltage of 4.2 V to 4.275 V and an excellent initial charge and discharge capacity.