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:
Apr. 23, 2002
Filed:
Feb. 07, 2000
Hideyuki Inomata, Moriguchi, JP;
Naoya Nakanishi, Moriguchi, JP;
Mitsuzo Nogami, Moriguchi, JP;
Ikuo Yonezu, Moriguchi, JP;
Koji Nishio, Moriguchi, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A lithium secondary cell is disclosed in which a positive electrode plate and a negative electrode plate are spirally wound with a sheet of separator interposed therebetween. A plurality of positive electrode current collector tabs are attached to the positive electrode plate so that an interval is formed between the positive electrode current collector tabs in a longitudinal direction of the positive electrode plate, and a plurality of negative electrode current collector tabs are attached to the negative electrode plate so that an interval is formed between the plurality of the negative electrode current collector tabs in a longitudinal direction of the negative electrode plate. In a state of the positive electrode plate and negative electrode plate being wound together, the positive electrode current collector tabs and the negative electrode current collector tabs are so disposed as to face each other with the separator interposed therebetween.