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. 05, 2016
Filed:
Jun. 28, 2013
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Akira Tsukui, Toyota, JP;
Hiroyasu Kado, Seto, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
Disclosed is a method for manufacturing a sealed battery capable of reducing leakage of helium gas introduced into an exterior. A method for manufacturing a sealed battery according to the present invention includes a leak testing step for detecting leak of helium gas (H) introduced into an exterior (), a processing step for increasing apparent specific gravity of the helium gas (H) by mixing the helium gas (H) and the hydrocarbon gas with specific gravity larger than that of the helium gas (H) to prepare mixed gas (G), an introducing step for introducing the helium gas (H) into the exterior () with the apparent specific gravity of the helium gas (H) increased by introducing the mixed gas (G), and a sealing step for sealing the exterior () into which the helium gas (H) is introduced.