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:
May. 13, 2014
Filed:
Jan. 09, 2008
Masatomo Mizuta, Sagamihara, JP;
Kazuaki Utsumi, Sagamihara, JP;
Makihiro Otohata, Sagamihara, JP;
Hiroshi Yageta, Sagamihara, JP;
Masatomo Mizuta, Sagamihara, JP;
Kazuaki Utsumi, Sagamihara, JP;
Makihiro Otohata, Sagamihara, JP;
Hiroshi Yageta, Sagamihara, JP;
NEC Corporation, Tokyo, JP;
Abstract
A packaged battery, an assembled battery, and a film-covered battery, which can prevent a dangerous state involving a high-pressure gas filled in the film-covered battery while ensuring a sealing reliability, are provided. The Packaged battery includes film-covered batteryincluding a battery element and exterior films forming a sealed space housing the battery element, and holding memberholding film-covered battery. The sealed space includes a housing section housing the battery element, and a pocket communicating with the housing section to expand when the pressure in the sealed space increases. The pocket includes a safety valve which activates when the pocket expands. Holding memberincludes an opening and a cavity fitting the housing section therein. When the housing section is fitted into the cavity, at least part of the pocket and the safety valve protrude to the outside of the holding member from the opening.