US 11,811,056 B2
One-pot synthesis for LiNbO3 coated spinel
Stephen Campbell, Burnaby (CA); and Elahe Talaie, Burnaby (CA)
Assigned to Nano One Materials Corp., Burnaby (CA)
Appl. No. 16/980,696
Filed by Nano One Materials Corp., Burnaby (CA)
PCT Filed Apr. 15, 2019, PCT No. PCT/CA2019/050460
§ 371(c)(1), (2) Date Sep. 14, 2020,
PCT Pub. No. WO2019/200464, PCT Pub. Date Oct. 24, 2019.
Claims priority of provisional application 62/659,159, filed on Apr. 18, 2018.
Prior Publication US 2021/0028448 A1, Jan. 28, 2021
Int. Cl. H01M 4/36 (2006.01); C01G 45/12 (2006.01); C01G 53/00 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/366 (2013.01) [C01G 45/1242 (2013.01); C01G 53/50 (2013.01); C01G 53/54 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2002/32 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 67 Claims
OG exemplary drawing
 
1. A method of forming a coated lithium ion cathode material comprising:
in one pot;
forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid;
digesting said digestible feedstock to form a first metal salt in solution wherein said first metal salt precipitates as a salt of deprotonated said multi-carboxylic acid thereby forming an oxide precursor wherein said first metal salt comprises lithium and at least one of Mn, Ni, Co, Al or Fe;
adding a coating metal precursor salt after said digestion;
heating said oxide precursor to form said lithium ion cathode material with an oxide of said coating metal precursor salt as a coating on said lithium ion cathode material.