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:
Mar. 12, 2013
Filed:
Dec. 17, 2009
Zhenhua Mao, Ponca City, OK (US);
Mark W. Carel, Ponca City, OK (US);
Daniel H. Irvin, Fulshear, TX (US);
David W. Westphal, Houston, TX (US);
Zhenhua Mao, Ponca City, OK (US);
Mark W. Carel, Ponca City, OK (US);
Daniel H. Irvin, Fulshear, TX (US);
David W. Westphal, Houston, TX (US);
Phillips 66 Company, Houston, TX (US);
Abstract
Processes produce a lithium vanadium fluorophosphate or a carbon-containing lithium vanadium fluorophosphate. Such processes include forming a solution-suspension of precursors having Vthat is to be reduced to V. The solution-suspension is heated in an inert environment to drive synthesis of LiVPOF such that carbon-residue-forming material is also oxidized to precipitate in and on the LiVPOF forming carbon-containing LiVPOF or CLVPF. Liquids are separated from solids and a resulting dry powder is heated to a second higher temperature to drive crystallization of a product. The product includes carbon for conductivity, is created with low cost precursors, and retains a small particle size without need for milling or other processing to reduce the product to a particle size suitable for use in batteries. Furthermore, the process does not rely on addition of carbon black, graphite or other form of carbon to provide the conductivity required for use in batteries.