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. 15, 2003
Filed:
Nov. 14, 2000
Jin-kyung Kim, Chungcheongnam-do, KR;
Jeong-soon Shin, Chungcheongnam-do, KR;
Ki-woong Jang, Chungcheongnam-do, KR;
Samsung SDI Co., Ltd., Kyungki-do, KR;
Abstract
A sealed battery includes a can having an opening, a rolled electrode assembly inserted into the can, and a cap assembly sealing the opening. The rolled electrode assembly has first and second electrodes and a porous separator disposed between the first and second electrodes. The first electrode has a first base plate and a first active material deposited on the first base plate, and the second electrode has a second base plate and a second active material deposited on the second base plate. Central turns are disposed around an imaginary central axis of the rolled electrode assembly and support the rolled electrode assembly. The central turns include at least 1.5 turns of one of the first and second base plate and the porous separator.