US 11,658,296 B2
Use of nickel in a lithium rich cathode material for suppressing gas evolution from the cathode material during a charge cycle and for increasing the charge capacity of the cathode material
Matthew Robert Roberts, Oxford (GB); Peter George Bruce, Oxford (GB); Niccolo Guerrini, Oxford (GB); Kun Luo, Tianjin (CN); and Rong Hao, Shenzhen (CN)
Assigned to Dyson Technology Limited, Malmesbury (GB)
Appl. No. 16/955,024
Filed by Dyson Technology Limited, Wiltshire (GB)
PCT Filed Dec. 18, 2018, PCT No. PCT/GB2018/053657
§ 371(c)(1), (2) Date Jun. 17, 2020,
PCT Pub. No. WO2019/122845, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 17211178 (GB), filed on Dec. 18, 2017.
Prior Publication US 2020/0381718 A1, Dec. 3, 2020
Int. Cl. H01M 4/505 (2010.01); C01G 53/00 (2006.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/505 (2013.01) [C01G 53/50 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2002/77 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method comprising:
suppressing gas evolution from a cathode material during a charge cycle by incorporating a nickel doped lithium rich cathode material of the general formula:

OG Complex Work Unit Math
wherein the cathode material is selected from one of Li1.15Co0.15Ni0.2Mn0.5O2Li1.15Ni0.2Co0.1Al0.05Mn0.5O2, or Li1.1333Ni0.2Co0.15Al0.05Mn0.4667O2.