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. 12, 2013
Filed:
Dec. 04, 2008
Aruna Zhamu, Centerville, OH (US);
Bor Z. Jang, Centerville, OH (US);
Jinjun Shi, Columbus, OH (US);
Aruna Zhamu, Centerville, OH (US);
Bor Z. Jang, Centerville, OH (US);
Jinjun Shi, Columbus, OH (US);
Nanotek Instruments, Inc., Dayton, OH (US);
Abstract
A solid nanocomposite particle composition for lithium metal or lithium ion battery electrode applications. The composition comprises: (A) an electrode active material in a form of fine particles, rods, wires, fibers, or tubes with a dimension smaller than 1 μm; (B) nano graphene platelets (NGPs); and (C) a protective matrix material reinforced by the NGPs; wherein the graphene platelets and the electrode active material are dispersed in the matrix material and the NGPs occupy a weight fraction wof 1% to 90% of the total nanocomposite weight, the electrode active material occupies a weight fraction wof 1% to 90% of the total nanocomposite weight, and the matrix material occupies a weight fraction wof at least 2% of the total nanocomposite weight with w+w+w=1. For a lithium ion battery anode application, the matrix material is preferably amorphous carbon, polymeric carbon, or meso-phase carbon. Such a solid nanocomposite composition provides a high anode capacity and good cycling stability. For a cathode application, the resulting lithium metal or lithium ion battery exhibits an exceptionally high cycle life.