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:
Feb. 07, 2017
Filed:
Apr. 09, 2013
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
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 composite is provided. A mixed solution including a solvent, an iron salt, and a phosphate is provided. An alkaline solution is added in the mixed solution until the mixed solution has a pH value in a range from about 1.5 to about 5. The mixed solution is stirred to react the iron salt with the phosphate to form a number of iron phosphate precursor particles. The iron phosphate precursor particles are heated. A lithium source solution, a reducing agent, and the iron phosphate precursor particles are mixed to form a lithium iron phosphate precursor slurry. Outer surfaces of the lithium vanadium phosphate particles are coated with the lithium iron phosphate precursor.