公开(公告)号：US10526212B2

公开(公告)日：2020-01-07

申请号：US15524898

申请日：2015-10-30

Applicant: BASF SE

Inventor： Christoph Erk ,  Thomas Michael Ryll ,  Jordan Lampert

IPC: H01M4/02 ,  C01G53/00 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: A process is described for producing mixed oxide in particulate form, comprising cations of lithium and cations of at least two transition metals selected from the group consisting of nickel, cobalt, manganese, titanium, vanadium, chromium and iron, as are mixed oxides produced by this process.

公开(公告)号：US11984578B2

公开(公告)日：2024-05-14

申请号：US17595860

申请日：2020-06-17

Applicant: BASF SE

Inventor： Heino Sommer ,  Christoph Erk ,  Thomas Schaub

IPC: H01M10/05 ,  H01M4/04 ,  H01M4/36 ,  H01M4/525 ,  H01M4/02

CPC classification number: H01M4/0421 ,  H01M4/366 ,  H01M4/525 ,  H01M2004/028

Abstract: Process for making an at least partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula Li1+xTM1−xO2, wherein TM is a combination of Ni and Co or Ni and Al and, optionally, Mn, and, optionally, at least one metal selected from Ga, Nb, Ta, Mg, Mo, B, Sn, V, W, Ti and Zr, and x is in the range of from zero to 0.2, (b) treating said electrode active material with at least one carbonyl compound of Co, and (c) treating the material obtained in step (b) with an oxidant.

公开(公告)号：US11862795B2

公开(公告)日：2024-01-02

申请号：US17254559

申请日：2019-06-17

Applicant: BASF SE

Inventor： Christoph Erk ,  Thomas Letzelter ,  Markus Hoelzle ,  Carsten Sueling

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/505 ,  H01M4/02

CPC classification number: H01M4/525 ,  C01G53/50 ,  H01M4/505 ,  C01P2002/52 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028

Abstract: Process for modifying an electrode active material according to general formula Li1+xTM1−xO2, wherein TM contains a combination of Ni and at least one transition metal selected from Co and Mn, and, optionally, at least one metal selected from Al, Ba, and Mg and, optionally, one or more transition metals other than Ni, Co, and Mn, wherein at least 75 mole-% of TM is Ni, and x is in the range of from −0.05 to 0.2, said process comprising the steps of (a) treating said Li1+xTM1−xO2 with an aqueous medium with a pH value of at least 5 and up to 14, (b) removing said aqueous medium from treated Li1+xTM1−xO2 by way of a solid-liquid separation, wherein steps (a) and (b) are commenced with a maximum time difference of 3 minutes. In addition, the present invention is directed towards Ni-rich electrode active materials.

公开(公告)号：US11283074B2

公开(公告)日：2022-03-22

申请号：US16652188

申请日：2018-09-18

Applicant: BASF SE ,  Karlsruher Institut fuer Technologie

Inventor： Pascal Hartmann ,  Thomas Michael Ryll ,  Christoph Erk ,  Lea De Biasi

IPC: H01M4/525 ,  H01M4/505 ,  C01G53/00 ,  H01M4/62 ,  C09J7/29 ,  C09J7/40 ,  C09J121/00 ,  C09J133/08

Abstract: The present invention is related to an electrode active material for a lithium-ion battery of general formula (I): Li1+x(NiaCobMncMd)1−xO2 wherein x is in the range of from zero to 0.1, a is in the range of from 0.1 to 0.5, b is in the range of from 0.4 to 0.9, c is in the range of from zero to 0.3, d is in the range of from zero to 0.1, M is selected from Al, B, Mg, W, Mo, Ti, Si and Zr, with a+b+c+d=1 and a>c. In addition, the present invention is related to a method of manufacture of electrode active materials and to their use.