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:
Sep. 11, 2012
Filed:
Oct. 21, 2008
Bongchull Kim, Yongin-si, KR;
Jaehou Nah, Yongin-si, KR;
Jangho Lee, Yongin-si, KR;
Dongwoo Kim, Yongin-si, KR;
Bongchull Kim, Yongin-si, KR;
Jaehou Nah, Yongin-si, KR;
Jangho Lee, Yongin-si, KR;
Dongwoo Kim, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
An anode for a lithium rechargeable battery includes an active material layer that includes a metal-carbon composite active material including a carbonaceous active material and at least one active material selected from the group consisting of a metal or a metal oxide, graphite particles having surfaces that are coated or partially coated with a resin f, and a binder that binds and fixes the active material particles and the graphite particles to each other. The anode further includes a collector on which the active material layer is disposed. The resin-coated graphite particles maintain multiple conductive contact surfaces between the active material particles due to adhesiveness of the resin even when the volume of the metal-carbon composite active material particles is changed during charging and discharging, and prevent a reduction of the battery capacity and improve the lifetime of the battery.