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:
Oct. 12, 2010
Filed:
Dec. 27, 2006
Yooeup Hyung, Yongin-si, KR;
Seokgyun Chang, Yongin-si, KR;
Yongtae Kim, Yongin-si, KR;
Sangbong Nam, Yongin-si, KR;
Yooeup Hyung, Yongin-si, KR;
Seokgyun Chang, Yongin-si, KR;
Yongtae Kim, Yongin-si, KR;
Sangbong Nam, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A cylindrical lithium ion secondary battery includes a center pin fabricated with an inexpensive material and having a coating layer formed on the outer surface of the center pin. The cylindrical lithium ion secondary battery includes an electrode assembly having the center pin inserted through the center of the electrode. A case is provided for housing the electrode assembly and an electrolyte. A cap assembly seals the case. The center pin includes a body formed from a metallic material and a coating layer is formed on the outer surface of the body.