公开(公告)号：US11942634B2

公开(公告)日：2024-03-26

申请号：US16963714

申请日：2019-01-31

Applicant: BASF SE

Inventor： Jacob Haag ,  Maraike Ahlf ,  Heino Sommer

IPC: H01M4/139 ,  C01F7/02 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/525 ,  C01F7/02 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/366 ,  H01M4/505 ,  H01M10/0525

Abstract: A process for making a partially coated electrode active material may involve: (a) providing an electrode active material of the formula Li1+xTM1−xO2, wherein TM is a combination of Ni, Co and, optionally, Mn, and, optionally, at least one metal selected from Al, Ti, Mo, W, and Zr, and x is in the range of from zero to 0.2, wherein at least 60 mole-% of the transition metal of TM is Ni, and wherein the electrode active material has a residual moisture content in the range of from 50 to 1,000 ppm; (b) treating the electrode active material with a metal alkoxide or metal halide or metal amide or alkyl metal compound; (c) treating the material obtained in (b) with moisture; and (d) repeating the sequence of (b) and (c) twice to 4 times, wherein, in the last sequence of (b) and (c), moisture is at least partially substituted by ozone.

公开(公告)号：US11515525B2

公开(公告)日：2022-11-29

申请号：US16489895

申请日：2018-02-21

Applicant: BASF SE

Inventor： Frank Kleine Jaeger ,  Tillmann Liebsch ,  Michael Schoenherr ,  Dominik Garella ,  Fatih Cetinel ,  Heino Sommer ,  Maraike Ahlf ,  Daniel Loeffler ,  Regina Vogelsang ,  Jacob Haag

IPC: C23C16/44 ,  H01M4/36 ,  C23C16/442 ,  C23C16/455 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

Abstract: The present invention is related to a process for coating anoxide material, said process comprising the following steps: (a) providing a particulate material selected from lithiated nickel-cobalt aluminum oxides, lithiated cobalt-manganese oxides and lithiated layered nickel-cobalt-manganese oxides, (b) treating said cathode active material with a metal alkoxide or metal amide or alkyl metal compound, (c) treating the material obtained in step (b) with moisture, and, optionally, repeating the sequence of steps (b) and (c), wherein steps (b) and (c) are carried out in a mixer that mechanically introduces mixing energy into the particulate material, or by way of a moving bed or fixed bed, and wherein steps (b) and (c) are carried out at a pressure that is in the range of from 5 mbar to 1 bar above normal pressure.