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:
Jun. 07, 2016
Filed:
Aug. 06, 2012
Orlando Rios, Knoxville, TN (US);
Wyatt Evan Tenhaeff, Knoxville, TN (US);
Claus Daniel, Knoxville, TN (US);
Nancy Johnston Dudney, Knoxville, TN (US);
Alexander Johs, Knoxville, TN (US);
Grady Alexander Nunnery, Rock Hill, SC (US);
Frederick Stanley Baker, Kailua-Kona, HI (US);
Orlando Rios, Knoxville, TN (US);
Wyatt Evan Tenhaeff, Knoxville, TN (US);
Claus Daniel, Knoxville, TN (US);
Nancy Johnston Dudney, Knoxville, TN (US);
Alexander Johs, Knoxville, TN (US);
Grady Alexander Nunnery, Rock Hill, SC (US);
Frederick Stanley Baker, Kailua-Kona, HI (US);
UT-BATTELLE, LLC, Oak Ridge, TN (US);
Abstract
A method of making an anode includes the steps of providing fibers from a carbonaceous precursor, the carbon fibers having a glass transition temperature T. In one aspect the carbonaceous precursor is lignin. The carbonaceous fibers are placed into a layered fiber mat. The fiber mat is fused by heating the fiber mat in the presence of oxygen to above the Tbut no more than 20% above the Tto fuse fibers together at fiber to fiber contact points and without melting the bulk fiber mat to create a fused fiber mat through oxidative stabilization. The fused fiber mat is carbonized by heating the fused fiber mat to at least 650° C. under an inert atmosphere to create a carbonized fused fiber mat. A battery anode formed from carbonaceous precursor fibers is also disclosed.