Electric double layer capacitor

Details Electric double layer capacitor Electric double layer capacitor

2007-02-06

2007-02-06

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Double layer electrolytic capacitor

C252S062200

Reexamination Certificate

active

11332375

ABSTRACT:
To provide an electric double layer capacitor having a low resistance, a high withstanding voltage and an excellent low-temperature characteristic. This object is achieved by employing, for an electric double layer capacitor having a pair of polarized electrodes and an electrolytic solution capable of forming an electric double layer at the interface with the polarized electrodes, an electrolytic solution containing as an electrolyte a salt represented by the formula 1, and as solvents at least (1) a chain carbonate having at most 5 carbon atoms, (2) sulfolane or its derivative and (3) a fluorobenzene:wherein each of R1and R2which are independent of each other, is a C1-4alkyl group, and X−is an anion.

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