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:
Jul. 20, 2010
Filed:
Feb. 07, 2005
Jeremy Barker, Oxfordshire, GB;
M. Yazid Saidi, Henderson, NV (US);
Jeffrey Swoyer, Henderson, NV (US);
Jeremy Barker, Oxfordshire, GB;
M. Yazid Saidi, Henderson, NV (US);
Jeffrey Swoyer, Henderson, NV (US);
Valence Technology, Inc., Las Vegas, NV (US);
Abstract
Sodium ion batteries are based on sodium based active materials selected among compounds of the general formula AM(XY)Z, wherein A comprises sodium, M comprises one or more metals, comprising at least one metal which is capable of undergoing oxidation to a higher valence state, Z is OH or halogen, and XYrepresents phosphate or a similar group. The anode of the battery includes a carbon material that is capable of inserting sodium ions. The carbon anode cycles reversibly at a specific capacity greater than 100 mAh/g.