Patent ID: 11901513
Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 10:
11. An electrochemical device, comprising an electrode and an electrolyte, wherein the electrolyte comprising:
a fluorinated cyclic carbonate, a chain carboxylate, a dinitrile compound and a multi-nitrile compound having an ether bond, wherein based on a total weight of the electrolyte, a weight percentage (Cf) of the fluorinated cyclic carbonate is greater than a weight percentage (Cn) of the multi-nitrile compound having an ether bond; wherein,
the dinitrile compound comprises at least one selected from the group consisting of succinonitrile, adiponitrile, and ethylene glycol bis(2-cyanoethyl) ether; and,
the multi-nitrile compound having an ether bond is selected from at least one of the group consisting of 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;
wherein the electrolyte further comprises at least one of a cyclic carbonate having a carbon-carbon double bond within the range of 0.01 wt % to 0.5 wt %, a fluorinated chain carbonate, and a compound having a sulfur-oxygen double bond.