US 11,990,624 B2
Positive electrode slurry, positive electrode plate, and secondary battery including such positive electrode plate
Qifan Wu, Ningde (CN); and Ming Zhang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed on Jun. 22, 2023, as Appl. No. 18/340,019.
Application 18/340,019 is a continuation of application No. PCT/CN2022/091917, filed on May 10, 2022.
Prior Publication US 2023/0369595 A1, Nov. 16, 2023
Int. Cl. H01M 4/62 (2006.01); C07C 43/23 (2006.01); H01M 4/131 (2010.01); H01M 4/136 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/62 (2013.01) [C07C 43/23 (2013.01); H01M 4/131 (2013.01); H01M 4/136 (2013.01); H01M 4/525 (2013.01); H01M 4/58 (2013.01); H01M 4/5825 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A positive electrode slurry, comprising:
a positive electrode active material; and
polyether polyol, the polyether polyol having following constitutional formula:

OG Complex Work Unit Chemistry
wherein:
R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are each independently selected from H, a hydroxyl group, halogen, —CH3, and X, wherein:
X has following constitutional formula:
—O(CH2—CHR—O)nD  formula 2
wherein:
n is an integer ranging from 6 to 1000;
D is H or a C1-8 alkyl group; and
each R is independently selected from H, halogen, a hydroxyl group, a halogenated C1-8 alkyl group, R11, —OR11 or R11OR12, wherein R11 and R12 are each independently selected from a straight-chain or branched-chain C1-8 alkyl group, a phenyl group, a C1-8 alkyl substituted phenyl group, a C1-8 alkoxy substituted phenyl group, or a halogenated phenyl group;
at least one of R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 is X, wherein not both R1 and R6 are X, and not both R5 and R10 are X;
Y is selected from a group having the following constitutional formula: —O—, —S—, —CH2—, —CH(CH3)2—, —CH(CH3)(CH2CH3)—, —CH(CH3)(Ph)-, —CH(Ph)2-, —CH(COOCH3)—, —CH(COOCH2CH2CH2CH3)—, and —S(O)2—; and
a mass ratio of the polyether polyol to the positive electrode active material ranges from 0.0005 to 0.040.