Nonaqueous electrolyte for electrochemical devices

Details Nonaqueous electrolyte for electrochemical devices Nonaqueous electrolyte for electrochemical devices

2011-08-16

2011-08-16

Crepeau, Jonathan (Department: 1725)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S200000, C429S201000, C429S338000, C361S502000

Reexamination Certificate

active

07998615

ABSTRACT:
The present invention relates to a nonaqueous electrolyte for electrochemical devices, and to electric double-layer capacitor and secondary battery using the said nonaqueous electrolyte. The nonaqueous electrolyte according to the present invention comprises a room temperature molten salt and a fluorohydrocarbon. The nonaqueous electrolyte is flame resistant and can suppress the rise in its viscosity. Therefore, high quality electrochemical devices can be obtained by using the nonaqueous electrolyte. The electric double-layer capacitor according to the present invention comprises a pair of polarizable electrode plates, a separator interposed between the pair of electrode plates, and the inventive nonaqueous electrolyte. The secondary battery according to the present invention comprises a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte, wherein the nonaqueous electrolyte comprises the inventive nonaqueous electrolyte, and further comprises a lithium salt and a cyclic carbonate.

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