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:
Dec. 08, 2015
Filed:
Aug. 25, 2011
Hee-young Chu, Yongin-si, KR;
Sung-hwan Moon, Yongin-si, KR;
Jae-hyuk Kim, Yongin-si, KR;
Myung-hwan Jeong, Yongin-si, KR;
Chang-ui Jeong, Yongin-si, KR;
Jong-seo Choi, Yongin-si, KR;
Hee-Young Chu, Yongin-si, KR;
Sung-Hwan Moon, Yongin-si, KR;
Jae-Hyuk Kim, Yongin-si, KR;
Myung-Hwan Jeong, Yongin-si, KR;
Chang-Ui Jeong, Yongin-si, KR;
Jong-Seo Choi, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, Gyeonggi-do, KR;
Abstract
A positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery using the same, the positive active material including a secondary particle formed of a plurality of primary particles, the primary particles being made of a metal compound capable of intercalating/deintercalating lithium; and a coating layer on a surface of the secondary particle in an island arrangement, the coating layer including a metal oxide, wherein the secondary particle includes pores formed by the primary particles, the pores including a surface pore on the surface of the secondary particle and an internal pore inside the secondary particle, and the metal oxide of the coating layer fills a portion of the surface pore of the secondary particle.