Patent Number: 7,709,133

Title: Electrically conductive cellulose composite

Abstract: An electrically conductive cellulose composite includes a cellulose matrix and an electrically conductive carbonaceous material incorporated into the cellulose matrix. The electrical conductivity of the cellulose composite is at least 10 .mu.S/cm at 25.degree. C. The composite can be made by incorporating the electrically conductive carbonaceous material into a culture medium with a cellulose-producing organism, such as Gluconoacetobacter hansenii. The composites can be used to form electrodes, such as for use in membrane electrode assemblies for fuel cells.

Inventors: Evans; Barbara R. (Oak Ridge, TN), O'Neill; Hugh M. (Knoxville, TN), Woodward; Jonathan (Surrey, GB)

Assignee: UT-Battelle, LLC

International Classification: H01M 4/96 (20060101); C12P 19/04 (20060101); H01M 8/10 (20060101); H01B 1/24 (20060101)

Expiration Date: 5/04/12018