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:
Jun. 09, 2015
Filed:
Dec. 27, 2010
Gai Yang, Beijing, CN;
Chang-yin Jiang, Beijing, CN;
Jian Gao, Beijing, CN;
Jie-rong Ying, Beijing, CN;
Jian-jun LI, Beijing, CN;
Xiang-ming He, Beijing, CN;
Gai Yang, Beijing, CN;
Chang-Yin Jiang, Beijing, CN;
Jian Gao, Beijing, CN;
Jie-Rong Ying, Beijing, CN;
Jian-Jun Li, Beijing, CN;
Xiang-Ming He, Beijing, CN;
Tsinghua University, Beijing, CN;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A method for making a lithium battery cathode material is disclosed. A mixed solution including a solvent, an iron salt material, and a phosphate material is provided. An alkaline solution is added into the mixed solution until the mixed solution has a pH value ranging from about 1.5 to 5. The iron salt react with the phosphate material to form a plurality of iron phosphate precursor particles which are added in a mixture of a lithium source solution and a reducing agent to form a lithium iron phosphate precursor slurry. The lithium iron phosphate precursor slurry is heat-treated.