US 12,334,551 B2
LMO cathode composition
Matthew Robert Roberts, Oxford (GB); Niccolo Guerrini, Oxford (GB); and Juliette Marie Billaud Ep. Bouville, Oxford (GB)
Assigned to Dyson Technology Limited, Malmesbury (GB)
Appl. No. 17/769,943
Filed by Dyson Technology Limited, Wiltshire (GB)
PCT Filed Oct. 21, 2020, PCT No. PCT/GB2020/052642
§ 371(c)(1), (2) Date Apr. 18, 2022,
PCT Pub. No. WO2021/079107, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 1915244 (GB), filed on Oct. 22, 2019.
Prior Publication US 2022/0384799 A1, Dec. 1, 2022
Int. Cl. H01M 4/505 (2010.01); C01G 45/1228 (2025.01); C01G 45/1257 (2025.01); H01M 4/02 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/505 (2013.01) [C01G 45/1228 (2013.01); C01G 45/1257 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); C01P 2002/50 (2013.01); C01P 2002/72 (2013.01); C01P 2002/76 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cathode composition for a lithium-ion battery of the general formula:
Li1+xMn1-xO2
wherein the composition is in the form of a single phase having a rock salt crystal structure such that an x-ray diffraction pattern of the composition using a Cu Kα radiation source has an absence of peaks below a 2θ value of 35; and
the value of x is greater than 0, and equal to or less than 0.3.