The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 31, 2024

Filed:

Apr. 04, 2024
Applicant:

Ningde Amperex Technology Limited, Fujian, CN;

Inventors:

Kefei Wang, Ningde, CN;

Qiao Zeng, Ningde, CN;

Liangzhen Xiao, Ningde, CN;

Fei Wu, Ningde, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0566 (2010.01); H01M 4/13 (2010.01); H01M 4/64 (2006.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0566 (2013.01); H01M 4/13 (2013.01); H01M 4/64 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0025 (2013.01); H01M 2300/0034 (2013.01); H01M 2300/0037 (2013.01);
Abstract

An electrolyte including a dinitrile compound, a trinitrile compound, and propyl propionate. Based on the total weight of the electrolyte, the weight percentage of the dinitrile compound is X, the weight percentage of the trinitrile compound is Y, and the weight percentage of the propyl propionate is Z, wherein, about 2 wt %<(X+Y)≤about 11 wt %, about 0.1≤(X/Y)≤about 4, about 30 wt %≤Z≤about 50 wt %, about 2 wt %<X≤about 6 wt %, and about 0.01<(Y/Z)≤about 0.3; wherein the trinitrile compound comprises at least one selected from the group consisting of 1,3,5-pentanetricarbonitrile; 1,2,3-propanetrinitrile, 1,3,6-hexanetricarbonitrile; 1,2,6-hexanetricarbonitrile, 1,2,3-tris(2-cyanoethoxy)propane; 1,2,4-tris(2-cyanoethoxy)butane, 1,1,1-tris(cyanoethoxymethylene)ethane, 1,1,1-tris(cyanoethoxymethylene)propane, 3-methyl-1,3,5-tris(cyanoethoxy)pentane, 1,2,7-tris(cyanoethoxy)heptane, 1,2,6-tris(cyanoethoxy)hexane, and 1,2,5-tris(cyanoethoxy)pentane.


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