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:
Nov. 25, 2003
Filed:
Mar. 13, 2001
Kouichi Satoh, Itami, JP;
Naoya Nakanishi, Tondabayashi, JP;
Noboru Nakano, Mihara-gun, JP;
Toshiyuki Nohma, Hirakata, JP;
Ikuo Yonezu, Hirakata, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
In a nonaqueous electrolyte secondary cell comprising a rolled-up electrode unit encased in a cell can a striplike current collector forming an electrode has an edge projecting from at least one of opposite ends of the electrode unit. A current collecting plate is joined to the current collector edge A plurality of circular-arc protrusions projecting in a circular-arc cross section and a plurality of slit pieces are formed radially on the current collecting plate and opposed to the current collector edge The collecting plate is welded to the current collector edge with the protrusions and the slit pieces biting into the current collector edge whereby high current collecting performance is available.