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:
Aug. 27, 2019
Filed:
Oct. 03, 2014
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Akira Tsukui, Toyota, JP;
Hiroyasu Kado, Seto, JP;
Nobuhiro Yamada, Toyota, JP;
Akio Minakuchi, Okazaki, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi, JP;
Abstract
Provided is a method for manufacturing a secondary cell by which a wound body can be effectively impregnated with an electrolytic solution. The method includes: a step of depressurizing an interior of an outer case; a step of pouring an electrolytic solution E into the depressurized outer case; a step of depressurizing the interior of the outer case; a step of pouring the electrolytic solution E into the depressurized outer case; a step of impregnating the wound body with the electrolytic solution E from both axial end portionsof a wound body; a step of waiting until a difference in pressure between a wound body external space S, which is a space between the outer caseand the wound body, and a wound body internal space Sis reduced after the impregnation with the electrolytic solution E; and a step of pressurizing the wound body external space S.