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. 28, 2010
Filed:
Jan. 12, 2010
Kyu Ho Song, Daejeon, KR;
Wan Jae Myeong, Daejeon, KR;
Soo Yeong Han, Daejeon, KR;
Kyoo Seung Han, Busan, KR;
Kyu Ho Song, Daejeon, KR;
Wan Jae Myeong, Daejeon, KR;
Soo Yeong Han, Daejeon, KR;
Kyoo Seung Han, Busan, KR;
Hanwha Chemical Corporation, Seoul, KR;
Abstract
The invention provides an anion-deficient non-stoichiometric lithium iron phosphate as an electrode-active material, which is represented by the formula LiFe(PO), wherein 0<x≦0.15 and 0<y≦0.05. The invention provides a method for preparing said LiFe(PO), which comprises preparing a precursor of lithium iron phosphate; mixing said precursor with water under reaction conditions of 200˜700° C. and 180˜550 bar to produce lithium iron phosphate; and calcining, or granulating and calcining the resultant compound. The invention also provides electrochemical devices employing said LiFe(PO)as an electrode-active material.