Patent ID: 8377587

Claim:
An electrolyte for an electrochemical device, comprising: 1.18-35.4 wt % of a salt, 0.1-9 wt % of a compound represented by below formula (I): and an organic solvent as a complement to 100 wt %, wherein R is an aliphatic or aromatic residue unsubstituted or substituted with one or more substituents, and said substituents are selected from the group consisting of one or more halogen, C 1 -C 8 alkyl, C 1 -C 8 alkoxy, C 6 -C 10 aryl, C 6 -C 10 aryloxy, C 3 -C 6 cycloalkyl, C 3 -C 6 cycloalkoxy, C 1 -C 3 carboxy, and sulfur; n is 2, 3, or 4, in which one or more methylene groups (—CH 2 —) in the aliphatic or aromatic residue can be independently replaced by oxygen (—O—), C 6 -C 10 arylene, C 6 -C 10 cycloalkylene,