The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2011
Filed:
Jan. 12, 2005
Tooru Matsui, Fujiidera, JP;
Masaki Deguchi, Kadoma, JP;
Hiroshi Yoshizawa, Hirakata, JP;
Panasonic Corporation, Osaka, JP;
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.