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. 22, 2008
Filed:
Jun. 19, 2002
Min-seuk Kim, Seoul, KR;
Duck-young Yoo, Suwon, KR;
Jae-young Choi, Suwon, KR;
Jong-ki Lee, Seoul, KR;
Min-seuk Kim, Seoul, KR;
Duck-young Yoo, Suwon, KR;
Jae-young Choi, Suwon, KR;
Jong-ki Lee, Seoul, KR;
Samsung SDI Co., Ltd., Suwon, Kyungki-do, KR;
Abstract
Disclosed is a cathode electrode having a cathode active material layer stacked on a current collector. The cathode active material layer includes a porous conductive material having a surface coated with sulfur and/or a sulfur-containing organic compound and/or pores filled with sulfur and/or a sulfur-containing organic compound. A lithium secondary battery employing the cathode electrode also is disclosed. The cathode electrode is structurally stable during charging and discharging since the structure of the cathode active material layer can be maintained even at the phase transition of sulfur during charging and discharging.