Electrolyte solution, sodium secondary battery and electrical apparatus
AssigneeContemporary Amperex Technology Co., Limited
InventorsKai WU, Zhiwei TIE, Hailin ZOU, Peipei CHEN
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Abstract
The present application provides an electrolyte solution, a sodium secondary battery and an electrical apparatus. The electrolyte solution comprises a first additive and a second additive, the first additive comprises a cyclic ester compound containing a sulfur element, and the second additive comprises one or more of fluorosulfonate and difluorophosphate.
Claims20
An electrolyte solution applied to a sodium secondary battery, comprising a first additive and a second additive, wherein the first additive comprises a cyclic ester compound containing a sulfur element, and the second additive comprises one or more selected from the group consisting of fluorosulfonate and difluorophosphate;
- the cyclic ester compound comprises a compound having the structure shown in an Formula I,
- in the Formula I, R1 includes
- R2 and R3 each independently comprise at least one selected from the group consisting of a hydrogen atom, a C1-C6 alkyl group, a C1-C3 haloalkyl group, a C1-C3 alkoxy group, a C1-C3 haloalkoxy group, a C1-C3 alkenyl group, an ester group, a cyano group, and a sulfonic acid group;
- and R4 comprises at least one selected from the group consisting of an oxygen atom, a C1-C6 alkyl group, a C1-C3 haloalkyl group, a C1-C3 alkoxy group, and a C1-C3 haloalkoxy group.
Dependencies are inferred from the claim text.