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:
Oct. 22, 2013
Filed:
Feb. 13, 2009
Olivier Caumont, Quimper, FR;
Jean-michel Depond, Quimper, FR;
Arnaud Jourdren, Ergue-Gaberic, FR;
Philippe Azais, Quimper, FR;
Olivier Caumont, Quimper, FR;
Jean-Michel Depond, Quimper, FR;
Arnaud Jourdren, Ergue-Gaberic, FR;
Philippe Azais, Quimper, FR;
Batscap, Ergue-Gaberic, FR;
Abstract
The present invention relates to a device to prevent overpressure in a supercapacitor. In a supercapacitor comprising a closed chamber fitted with means for exchanging a gas with the external surroundings and in which there are positioned two electrodes with a high specific surface area, separated by a separator, the separator and the electrodes being impregnated with an electrolyte, the means for exchanging a gas comprise a metallic membrane that is permeable to hydrogen and its isotopes and impermeable to gaseous species which have an effective cross section of 0.3 nm or higher, at a temperature of between −50° C. and 100° C.