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:
Apr. 06, 2006
Ivan Exnar, Itingen, CH;
Thierry Drezen, Cugy, CH;
Ivan Exnar, Itingen, CH;
Thierry Drezen, Cugy, CH;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Novel process for the preparation of finely divided, nano-structured, olivine lithium metal phosphates (LiMPO) (where metal M is iron, cobalt, manganese, nickel, vanadium, copper, titanium and mix of them) materials have been developed. This so called Polyol' method consists of heating of suited precursor materials in a multivalent, high-boiling point multivalent alcohol like glycols with the general formula HO—(—CHO—), —H where n=1-10 or HO—(—CHO—)—H where n=1-10, or other polyols with the general formula HOCH—(—CHOH—)—H where n=1-10, like for example the tridecane-1,4,7,10,13-pentaol. A novel method for implementing the resulting materials as cathode materials for Li.-ion batteries is also developed.