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:
Sep. 11, 2007
Filed:
Sep. 25, 2006
Hiroshi Yoshida, Chiba, JP;
Kanako Yuyama, Chiba, JP;
Hiroshi Yoshida, Chiba, JP;
Kanako Yuyama, Chiba, JP;
Nisshinbo Industries, Inc., Tokyo, JP;
Abstract
An electric double layer capacitor is composed of a pair of current collectors, a positive polarizable electrode provided on one of the pair of current collectors, a negative polarizable electrode provided on the other of the pair of current collectors, a separator between the positive and negative polarizable electrodes, and an organic electrolytic solution which impregnates at least the positive and negative polarizable electrodes and the separator. The capacitor has a theoretical amount of ions Qdefined as(moles)=÷96,500,wherein C is the rated capacitance (farads) of the capacitor and V is the rated voltage (volts), and an amount of ions Qin the organic electrolytic solution, such that Q/Q=1.7 to 3.5. The capacitor has a high voltage rating, excellent cycle characteristics during high-current charging and discharging, and a low internal resistance in low-temperature environments.