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. 25, 2012
Filed:
May. 27, 2010
Seung-taek Hong, Seoul, KR;
Hey Woong Park, Daejeon, KR;
Ho Jin Jeon, Daejeon, KR;
Sung Joon Park, Seoul, KR;
Dae Sik Choi, Yongin, KR;
Nan Ji Yun, Daejeon, KR;
Yo Jin Kim, Daejeon, KR;
Seung Don Choi, Daejeon, KR;
Seung-Taek Hong, Seoul, KR;
Hey Woong Park, Daejeon, KR;
Ho Jin Jeon, Daejeon, KR;
Sung Joon Park, Seoul, KR;
Dae Sik Choi, Yongin, KR;
Nan Ji Yun, Daejeon, KR;
Yo Jin Kim, Daejeon, KR;
Seung Don Choi, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Provided is a positive electrode active material. The positive electrode active material includes: a small-diameter active material having an average particle diameter of about 0.5 μm and a maximum particle diameter of less than about 1 μm; and a large-diameter active material having an average particle diameter of about 5 μm to about 20 μm and a maximum particle diameter of less than about 100 μm.