公开(公告)号：WO2018215254A1

公开(公告)日：2018-11-29

申请号：PCT/EP2018/062660

申请日：2018-05-16

Applicant: BASF SE

Inventor： KERN, Andreas Michael ,  SEIDEMANN, Lothar ,  ERK, Christoph

IPC: H01M4/525 ,  H01M4/58 ,  H01M10/0525

Abstract: Process for making an electrode active material for a lithium ion battery, said process comprising the following steps: (a) Contacting a mixture of (A) a precursor of a mixed oxide according to general formula Li 1+x TM 1-x O 2 , wherein TM is a combination of two or more transition metals selected from Mn, Co and Ni, optionally in combination with at least one more metal selected from Ba, Al, Ti, Zr, W, Fe, Cr, K, Mo, Nb, Mg, Naand V, and x is in the range of from zero to 0.2, and (B) at least one lithium compound, with (C) Br 2 , I 2 , or at least one compound selected from carbon perhalides selected from the bromides and iodides, and interhalogen compounds comprising bromine or iodine, and (b) Subjecting said mixture to heat treatment at a temperature in the range of from 700 to 1000°C.

公开(公告)号：WO2022128804A1

公开(公告)日：2022-06-23

申请号：PCT/EP2021/085257

申请日：2021-12-10

Applicant: BASF SE

Inventor： HENSLER, Timo ,  KERN, Andreas Michael ,  FIZ GONZALEZ, Raquel ,  BEIERLING, Thorsten

IPC: C01G53/00

Abstract: Process for removing water from a particulate material selected from (oxy)hydroxides and carbonates containing at least one of nickel or cobalt and at least one metal other than nickel, said process comprising the step of introducing at least one particulate material with a water content in the range of from 1 to 30 % by weight, referring to said particulate material, into a rotary kiln with external heating elements and moving it through the rotary kiln together with a flow of a gas, wherein the residual moisture of the resultant product is in the range of from 50 ppm to 1.5% by weight.