US 11,942,600 B2
Electrolyte, lithium-ion battery comprising electrolyte, battery module, battery pack and device
Yongkun Li, Ningde (CN); Kai Wu, Ningde (CN); Bo Cheng, Ningde (CN); and Feng Ju, Ningde (CN)
Assigned to Contemporary Amperex Technology Co., Limited, Ningde (CN)
Filed by Contemporary Amperex Technology Co., Limited, Ningde (CN)
Filed on Dec. 30, 2021, as Appl. No. 17/565,474.
Application 17/565,474 is a continuation of application No. PCT/CN2020/113973, filed on Sep. 8, 2020.
Claims priority of application No. 201910854407.3 (CN), filed on Sep. 10, 2019.
Prior Publication US 2022/0123364 A1, Apr. 21, 2022
Int. Cl. H01M 10/0567 (2010.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/42 (2006.01)
CPC H01M 10/0567 (2013.01) [H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/4235 (2013.01); H01M 2300/0025 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An electrolyte, comprising:
an organic solvent;
an electrolyte lithium salt dissolved in the organic solvent; and
an additive comprising a first additive and a second additive,
the first additive being selected from one or more of the following compounds:

OG Complex Work Unit Chemistry
the second additive being selected from one or more of the following compounds:
Compound 2-1: Tris(trimethylsilyl)phosphite,
Compound 2-2: Tris(trimethylsilyl)borate,
Compound 2-3: Tris(triethylsilyl)phosphite,
Compound 2-4: Tris(tri-n-propylsilyl)phosphite,
Compound 2-5: Tris(tri-n-butylsilyl)phosphite,
Compound 2-6: Tris(triethylsilyl)borate,
Compound 2-7: Tris(tri-n-propylsilyl)borate,
Compound 2-8: Tris(tri-n-butylsilyl)borate,
Compound 2-9: Tris(trimethylsilyl)phosphate,
Compound 2-10: Tris(triethylsilyl)phosphate,
Compound 2-11: Tris(tri-n-propylsilyl)phosphate,
Compound 2-12: Tris(tri-n-butylsilyl)phosphate, and
wherein the concentration of the first additive in the electrolyte is 0.1wt%-3wt% and the concentration of the second additive in the electrolyte is 0.05wt%-2wt%.