US 11,721,838 B2 · Electrolyte and electrochemical apparatus

Abstract

An electrolyte including an additive of compound of formula I, wherein n is an integer ranging from 0 to 10; R1 and R2 are each independently selected from a substituted or unsubstituted C1-C10 alkylidene group, a substituted or unsubstituted C2-C10 alkenylene group, or a substituted or unsubstituted C1-C10 alkyleneoxy group; A1 selected from CH, C, N, S, O, B or Si; A2 is selected from CH—R3, N—R3, S, O, B—R3 or SiH—R3; A3 selected from CH2, CH, C, N, S, O, B or Si; R3 is selected from hydrogen, halogen, a substituted or unsubstituted C1-C10 alkyl group, or a substituted or unsubstituted C3-C10 cycloalkyl group; X1 is selected from a substituted or unsubstituted C1-C10 alkylidene group, a substituted or unsubstituted C2-C10 alkenylene group, ═Rc═, or ═Rc—, wherein Rc is selected from a substituted or unsubstituted C2-C6 alkylidene group.

Claims13

Dependent claims

An electrolyte comprising at least one compound selected from the group consisting of:

a content of the at least one compound accounts for b % of a weight of the electrolyte, wherein b % is 0.1% to 5%;
and
lithium difluorophosphate;
a content of the lithium difluorophosphate accounts for a % of the weight of the electrolyte;
wherein a range of a/b is 0.01-6.

2 more elements

An electrochemical apparatus, comprising a positive electrode, a negative electrode, and an electrolyte comprising at least one compound selected from the group consisting of:

a content of the at least one compound accounts for b % of a weight of the electrolyte, wherein b % is 0.1% to 5%;
and
lithium difluorophosphate;
a content of the lithium difluorophosphate accounts for a % of the weight of the electrolyte;
wherein a range of a/b is 0.01-6.

2 more elements

Dependencies are inferred from the claim text.

Electrolyte and electrochemical apparatus

Life of this patent

Electrolyte and electrochemical apparatus

Life of this patent

Abstract

Claims13