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. 31, 2010
Filed:
Apr. 27, 2006
Seok Gyun Chang, Yongin-si, KR;
Yoo Eup Hyung, Yongin-si, KR;
Jung Seog Kim, Yongin-si, KR;
Young Eun Yun, Yongin-si, KR;
Seok Gyun Chang, Yongin-si, KR;
Yoo Eup Hyung, Yongin-si, KR;
Jung Seog Kim, Yongin-si, KR;
Young Eun Yun, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Lithium rechargeable batteries having functional center pins are provided. A lithium rechargeable battery has a center pin whose top and bottom ends are blocked by a thermal cut-off composition to reduce the void volume inside a bare cell during initial overcharge. The thermal cut-off composition melts at a temperature within a specific temperature range, e.g. between about 80 and about 250° C. This prevents the battery from exploding and igniting. Thus, the inventive lithium rechargeable batteries have improved thermal stability.