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Title: Lignin-based active anode materials synthesized from low-cost renewable resources

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.sub.g. 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 T.sub.g but no more than 20% above the T.sub.g to 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.degree. C. under an inert atmosphere to create a carbonized fused fiber mat. A battery anode formed from carbonaceous precursor fibers is also disclosed.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1256007
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN) ORNL
Patent Number(s):
9,359,695
Application Number:
13/567,275
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2012 Aug 06
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Works referenced in this record:

Lignin-based carbon fibers: Oxidative thermostabilization of kraft lignin
journal, January 2005

The chemical modification of lignins with succinic anhydride in aqueous systems
journal, January 2001