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:
Nov. 20, 2012
Filed:
May. 12, 2011
Jeremy Barker, Oxfordshire, GB;
Aiden Bryan, Newtownabbey, GB;
Paul Burns, Enniskillen, GB;
Richard Gover, Worcestershire, GB;
Jeremy Barker, Oxfordshire, GB;
Aiden Bryan, Newtownabbey, GB;
Paul Burns, Enniskillen, GB;
Richard Gover, Worcestershire, GB;
Valence Technology, Inc., Las Vegas, NV (US);
Abstract
The present invention provides for the preparation of an 'optimized' VPOphase or V—P—O/C precursor. The VPOprecursor is an amorphous or nanocrystalline powder. The V—P—O/C precursor is amorphous in nature and contains finely divided and dispersed carbon. Throughout the specification it is understood that the VPOprecursor and the V—P—O/C precursor materials can be used interchangeably to produce the final vanadium phosphates, with the V—P—O/C precursor material being the preferred precursor. The precursors can subsequently be used to make vanadium based electroactive materials and use of such precursor materials offers significant advantages over other processes known for preparing vanadium phosphate compounds.