公开(公告)号：US20210214844A1

公开(公告)日：2021-07-15

申请号：US17250793

申请日：2019-08-30

申请人： BASF SE

发明人： Maraike AHLF ,  Heino SOMMER ,  Regina VOGELSANG ,  Jacob HAAG ,  Markus GRONER ,  Christopher GUMP ,  Robert HALL ,  Joseph SPENCER, II

IPC分类号： C23C16/44 ,  C23C16/30 ,  C23C16/442 ,  H01M4/36 ,  C23C16/56 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/02

摘要： The present disclosure relates to a process for coating an oxide material, process comprising: (a) providing a particulate material chosen from lithiated nickel-cobalt aluminum oxides, lithiated cobalt-manganese oxides, and lithiated layered nickel-cobalt-manganese oxides, (b) treating the cathode active material with a metal alkoxide, a metal halide, a metal chloride, a metal amide, or an alkyl metal compound, (c) treating the material obtained in step (b) with a gas containing HF, and, optionally, repeating the sequence of steps (b) and (c), wherein step (b) is carried out in a mechanical mixer, or step (b) is carried out using a moving bed or fixed bed wherein steps (b) and (c) are carried out at a pressure that is in the range of from 5 mbar to 1 bar above ambient pressure.

公开(公告)号：US20210218008A1

公开(公告)日：2021-07-15

申请号：US17250792

申请日：2019-08-30

申请人： BASF SE

发明人： Maraike AHLF ,  Heino SOMMER ,  Carsten SUELING ,  Markus Daniel GRONER ,  Christopher GUMP ,  Robert HALL ,  Joseph SPENCER, II

IPC分类号： H01M4/04 ,  H01M4/505 ,  H01M4/525

摘要： The present disclosure relates to a process for coating an oxide material comprising: (a) providing a particulate material chosen from lithiated nickel-cobalt aluminum oxides, lithiated cobalt-manganese oxides, and lithiated layered nickel-cobalt-manganese oxides, (b) treating the cathode active material with a metal alkoxide, metal amide, alkyl metal compound, metal halide, or metal hydride at a pressure ranging from 5 mbar to 1 bar above ambient pressure, (c) deactivating the material obtained in step (b) with a HF containing gas at ambient pressure,  wherein step (b) is carried out in a mechanical mixer chosen from compulsory mixers and free-fall mixers, or step (b) is carried out using a moving bed or a fixed bed.