Electrolytic solution and battery
AssigneeSony Corporation
InventorsMasayuki Ihara, Hiroyuki Yamaguchi, Tadahiko Kubota
Life of this patent
Estimating the term…
Abstract
A battery capable of securing the cycle characteristics and the storage characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The electrolytic solution contains a solvent, an electrolyte salt, and a sulfone compound having a given structure (sulfonic acid, carboxylic acid anhydride not having an aromatic ring). Compared to a case that an electrolytic solution does not contain the foregoing sulfone compound, the decomposition reaction of the electrolytic solution is prevented.
Claims15
An electrolytic solution comprising:
- a solvent;
- an electrolyte salt;
- and
- a sulfone compound shown in Chemical formula 1.
- X represents an alkylene group with the carbon number in the range from 2 to 4, an alkenylene group with the carbon number in the range from 2 to 4, a derivative of alkylene group or a derivative of alkenylene group.
A battery comprising:
- a cathode;
- an anode;
- and
- an electrolytic solution,
- wherein the electrolytic solution contains a solvent, an electrolyte salt, and a sulfone compound shown in Chemical formula 7:
- X represents an alkylene group with the carbon number in the range from 2 to 4, an alkenylene group with the carbon number in the range from 2 to 4, a derivative of alkylene group or a derivative of alkenylene group.
Dependencies are inferred from the claim text.