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. 02, 2019
Filed:
Feb. 19, 2010
Sanghoon Choy, Daejeon, KR;
Yong Tae Lee, Jeonju-Si, KR;
Hong-kyu Park, Daejeon, KR;
Soo Min Park, Daejeon, KR;
Hyo-shik Kil, Daejeon, KR;
Cheol-hee Park, Daejeon, KR;
Sanghoon Choy, Daejeon, KR;
Yong Tae Lee, Jeonju-Si, KR;
Hong-Kyu Park, Daejeon, KR;
Soo Min Park, Daejeon, KR;
Hyo-Shik Kil, Daejeon, KR;
Cheol-Hee Park, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Provided is an olivine-type lithium iron phosphate having a composition represented by Formula I, comprising 0.1 to 5% by weight of LiPO, and comprising no LiCOor, if present, comprising LiCOin an amount less than 0.25% by weight: LiFeM(PO)X(I) wherein M, X, a, x and b are as defined above. The lithium iron phosphate comprises no lithium carbonate (LiCO) or, if present, comprises the LiCOin an extremely small amount, and comprises LiPOhaving superior electrochemical stability, thermal stability and ionic conductivity, thus advantageously imparting high-temperature and storage stability as well as stability and rate properties to lithium secondary batteries, when used as a cathode active material for the lithium secondary batteries.