	US 12,136,700 B2
	Lithium-ion battery and apparatus
Tiancheng Yi, Ningde (CN); Chunhua Hu, Ningde (CN); Yao Jiang, Ningde (CN); Shushi Dou, Ningde (CN); and Chengdu Liang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Mar. 17, 2022, as Appl. No. 17/697,265.
Application 17/697,265 is a continuation of application No. 17/128,581, filed on Dec. 21, 2020, granted, now 11,316,197.
Application 17/128,581 is a continuation of application No. PCT/CN2019/125313, filed on Dec. 13, 2019.
Claims priority of application No. 201811535393.0 (CN), filed on Dec. 14, 2018.
Prior Publication US 2022/0209296 A1, Jun. 30, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/0567 (2010.01); C07D 239/04 (2006.01); C07D 241/04 (2006.01); C07D 251/04 (2006.01); C07D 295/15 (2006.01); C07D 403/04 (2006.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01); H01M 10/42 (2006.01); H01M 4/02 (2006.01)

CPC H01M 10/0567 (2013.01) [C07D 239/04 (2013.01); C07D 241/04 (2013.01); C07D 251/04 (2013.01); C07D 295/15 (2013.01); C07D 403/04 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); H01M 10/4235 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0025 (2013.01); H01M 2300/004 (2013.01)]

6 Claims

1. A lithium-ion battery comprising an electrode assembly and an electrolytic solution, wherein the electrode assembly comprises a positive electrode sheet, a negative electrode sheet, and a separation film;

wherein

a positive active material in the positive electrode sheet comprises Li_x1Co_y1M_1-y1O_2-z1Q_z1, 0.5≤x1≤1.2, 0.8≤y1≤1.0, 0≤z1≤0.1, M is one or more selected from the group consisting of Al, Ti, Zr, Y, and Mg, and Q is one or more selected from the group consisting of F, Cl, and S;

the electrolytic solution contains vinylene carbonate, fluoroethylene carbonate, 1,3-propane sultone, and an additive A, wherein based on total mass of the electrolytic solution, a mass percentage of the additive A is 0.1%-10% and a mass percentage of each of the vinylene carbonate, the fluoroethylene carbonate, and the 1,3-propane sultone is 0.1%-10% respectively;

wherein, the additive A is one or more selected from the group consisting of compounds;