US 12,142,761 B2
Transition metal oxide particles encapsulated in nanostructured lithium titanate or lithium aluminate, and the use thereof in lithium ion batteries
Marcel Herzog, Karlstein (DE); Daniel Esken, Erlensee (DE); Ryo Takata, Hanau (DE); Franz Schmidt, Frankfurt (DE); Rajendra NegI, Giessen (DE); and Matthias Elm, Giessen (DE)
Assigned to Evonik Operations GmbH, Essen (DE)
Filed by Evonik Operations GmbH, Essen (DE)
Filed on Nov. 9, 2021, as Appl. No. 17/454,070.
Claims priority of application No. 20206870 (EP), filed on Nov. 11, 2020.
Prior Publication US 2022/0149368 A1, May 12, 2022
Int. Cl. H01M 4/525 (2010.01); H01M 4/04 (2006.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 4/525 (2013.01) [H01M 4/0416 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A process for producing a coated transition metal oxide, the process comprising:
dry mixing a transition metal oxide and a pyrogenically produced lithium titanate and/or a pyrogenically produced lithium aluminate,
wherein the dry mixing comprises dry mixing 0.05 to 2% by weight of the pyrogenically produced lithium titanate and/or the pyrogenically produced lithium aluminate, wherein the % by weight is relative to a total weight of a mixture of the transition metal oxide and the pyrogenically produced lithium titanate and/or the pyrogenically produced lithium aluminate,
with the transition metal oxide,
to thereby produce the coated transition metal oxide.