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:
Jul. 29, 2014
Filed:
Apr. 03, 2012
Jun Nunome, Kyoto, JP;
Fumio Kato, Osaka, JP;
Fumiharu Sakashita, Osaka, JP;
Isamu Saruwatari, Osaka, JP;
Jun Nunome, Kyoto, JP;
Fumio Kato, Osaka, JP;
Fumiharu Sakashita, Osaka, JP;
Isamu Saruwatari, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In an alkaline battery in which an opening of a battery casecontaining a power-generating element is sealed via a sealing platewith a gasketinterposed between the battery caseand the sealing plate, the sealing platehas a vent, the gaskethas an explosion-proof valve, an electrolyte filtermade of a porous membrane is disposed in a space defined by the sealing plateand the gasket, a volume of a space defined by the sealing plateand the electrolyte filteris greater than or equal to 0.25 cm, and a tensile stress of the electrolyte filterat 100% tensile elongation in at least one direction is in a range of 60-4000 N/m.