公开(公告)号：US20220379373A1

公开(公告)日：2022-12-01

申请号：US17791572

申请日：2021-01-07

Applicant: BASF SE

Inventor： Robert PRUNCHAK ,  Jose A. JIMENEZ ,  Rene KOENIG ,  Rastko JOKSIMOVIC

IPC: B22F1/16 ,  B22F1/05 ,  C23C16/455 ,  C23C16/40 ,  H01F1/20

Abstract: The invention is related to a soft-magnetic powder comprising coated particles, the coated particles comprising a core and a shell, the core having an average particle size D50 in a range from 0.1 μm to 100 μm and comprising iron, wherein the shell has a thickness of not more than 20 nm and comprises at least two solid oxides and wherein the shell comprises at least three layers and the shell comprises more than one layers of a first solid oxide and at least one layer of a second solid oxide, wherein the more than one layers of the first solid oxide and the at least one layer of the second solid oxide are arranged in an alternating manner. The invention is further related to a process for the production of the soft-magnetic powder, a use of the soft-magnetic powder and an electronic component comprising the soft-magnetic powder.

公开(公告)号：US20210234146A1

公开(公告)日：2021-07-29

申请号：US15734700

申请日：2019-05-29

Applicant: BASF SE

Inventor： Jose A JIMENEZ ,  Robert PRUNCHAK

IPC: H01M4/04 ,  C23C16/442 ,  H01M4/36 ,  C23C16/44 ,  C23C16/56 ,  H01M4/505 ,  H01M4/525

Abstract: Process for making an at least partially coated redox-active material wherein said process comprises the following steps: (a) Treating a redox-active material with a metal alkoxide or metal halide or metal amide or alkyl metal compound, wherein said redox-active material contains at least one metal selected from V, Cr, Mn, Fe, Co, Ni, Ag, Cu, Mo, W, Sn, Sb, Te, Pb, Bi and rare earth metals in an oxidized state, (b) Treating the material obtained in step (a) with anoxidizing agent, (c) Repeating the sequence of steps (a) and (b) from one to 100 times, wherein the average thickness of the resulting coating is in the range of from 0.1 to 50 nm.