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:
May. 27, 2014
Filed:
Nov. 28, 2008
Sang-min Lee, Suwon-si, KR;
Nam-soon Choi, Suwon-si, KR;
Goo-jin Jeong, Suwon-si, KR;
Yong-mook Kang, Suwon-si, KR;
Min-seok Sung, Suwon-si, KR;
Wan-uk Choi, Suwon-si, KR;
Sung-soo Kim, Suwon-si, KR;
Sang-Min Lee, Suwon-si, KR;
Nam-Soon Choi, Suwon-si, KR;
Goo-Jin Jeong, Suwon-si, KR;
Yong-Mook Kang, Suwon-si, KR;
Min-Seok Sung, Suwon-si, KR;
Wan-Uk Choi, Suwon-si, KR;
Sung-Soo Kim, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A negative electrode for rechargeable lithium batteries includes a current collector, a porous active material layer having a metal-based active material disposed on the current collector, and a high-strength binder layer on the porous active material layer. The high-strength binder layer has a strength ranging from 5 to 70 MPa. The negative active material for a rechargeable lithium battery according to the present invention can improve cycle-life characteristics by suppressing volume expansion and reactions of an electrolyte at the electrode surface.