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:
May. 28, 2013
Filed:
Oct. 09, 2010
Jun Liu, Richland, WA (US);
Daiwon Choi, Richland, WA (US);
Zhenguo Yang, Richland, WA (US);
Donghai Wang, State College, PA (US);
Gordon L Graff, West Richland, WA (US);
Zimin Nie, Richland, WA (US);
Vilayanur V Viswanathan, Richland, WA (US);
Jason Zhang, Richland, WA (US);
Wu Xu, Richland, WA (US);
Jin Yong Kim, Richland, WA (US);
Jun Liu, Richland, WA (US);
Daiwon Choi, Richland, WA (US);
Zhenguo Yang, Richland, WA (US);
Donghai Wang, State College, PA (US);
Gordon L Graff, West Richland, WA (US);
Zimin Nie, Richland, WA (US);
Vilayanur V Viswanathan, Richland, WA (US);
Jason Zhang, Richland, WA (US);
Wu Xu, Richland, WA (US);
Jin Yong Kim, Richland, WA (US);
Battelle Memorial Institute, Richland, WA (US);
Abstract
Lithium ion batteries having an anode comprising at least one graphene layer in electrical communication with titania to form a nanocomposite material, a cathode comprising a lithium olivine structure, and an electrolyte. The graphene layer has a carbon to oxygen ratio of between 15 to 1 and 500 to 1 and a surface area of between 400 and 2630 m/g. The nanocomposite material has a specific capacity at least twice that of a titania material without graphene material at a charge/discharge rate greater than about 10 C. The olivine structure of the cathode of the lithium ion battery of the present invention is LiMPOwhere M is selected from the group consisting of Fe, Mn, Co, Ni and combinations thereof.