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. 01, 2014
Filed:
Aug. 25, 2011
Hideo Nakamura, Toyota, JP;
Yoshinori Shibata, Nagoya, JP;
Toru Sugiyama, Aichi-ken, JP;
Takahiro Kuhara, Toyota, JP;
Yoshinori Nishio, Toyota, JP;
Takeshi Kotani, Kosai, JP;
Satoshi Yoneyama, Kosai, JP;
Hideo Nakamura, Toyota, JP;
Yoshinori Shibata, Nagoya, JP;
Toru Sugiyama, Aichi-ken, JP;
Takahiro Kuhara, Toyota, JP;
Yoshinori Nishio, Toyota, JP;
Takeshi Kotani, Kosai, JP;
Satoshi Yoneyama, Kosai, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Primearth EV Energy Co., Ltd., Shizuoka, JP;
Abstract
Provided is a method of manufacturing a battery having an electrode module including: a positive plate having a cathode collector portion formed by attaching a lead member to a cathode substrate made of a foamed metal plate; and a cathode collector plate welded to the cathode collector portion. The method includes: a pre-welding positive plate forming process of forming a pre-welding positive plate, which is the positive plate before welding, such that the pre-welding positive plate has a projection projecting from a pre-welding cathode collector portion, which is the cathode collector portion before welding; and a welding process of melting a pre-welding cathode collector plate to weld it to the projection. In the pre-welding positive plate forming process, the projection is formed into such a shape that the condition that S≦1.3W is satisfied, where W and S represent the width and the circumferential length of the projection, respectively.