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:
Jun. 07, 2011
Filed:
May. 18, 2006
Jong Ku Kim, Yongin-si, KR;
Soon Ki Woo, Yongin-si, KR;
Jin Wook Kim, Yongin-si, KR;
Young Taek Kim, Yongin-si, KR;
Youn Han Chang, Yongin-si, KR;
Sang Bong Nam, Yongin-si, KR;
Jong Ku Kim, Yongin-si, KR;
Soon Ki Woo, Yongin-si, KR;
Jin Wook Kim, Yongin-si, KR;
Young Taek Kim, Yongin-si, KR;
Youn Han Chang, Yongin-si, KR;
Sang Bong Nam, Yongin-si, KR;
Samsung SDI Co., Ltd., , KR;
Abstract
Disclosed is a cylindrical lithium secondary battery capable of improving the stability thereof against the external pressure, The cylindrical lithium secondary battery includes an electrode assembly and a core. The electrode assembly includes a first electrode sheet, a second electrode sheet and a separator interposed between the first and second electrode sheets, which are rolled together about an axis. The electrode assembly defines a space. The core has a tubular shape provided with a gap. The core includes at least one reinforcing structure extending in a direction extending along the axis. The core is inserted into the space of the electrode assembly. A housing receives the electrode assembly and core.