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Heteroatom incorporated coke for electrochemical cell electrode

United States Patent

5,639,576
June 17, 1997
View the Complete Patent at the US Patent & Trademark Office
This invention relates to an electrode for a coke/alkali metal electrochemical cell comprising: (a) calcined coke particles: (i) that contain at least 0.5 weight percent of nitrogen heteroatoms and at least 1.0 weight percent sulfur heteroatoms, and (ii) that have an average particle size from 2 microns to 40 microns with essentially no particles being greater than 50 microns. (b) a binder This invention also relates to a coke/alkali metal electrochemical cell comprising: (a) an electrode as described above, (b) a non-aqueous electrolytic solution comprising an organic aprotic solvent and an electrically conductive salt, and (c) a counterelectrode.
Lewis; Irwin Charles (Strongsville, OH), Greinke; Ronald Alfred (Medina, OH)
UCAR Carbon Technology Corporation (Danbury, CT)
08/ 654,661
May 29, 1996
GOVERNMENT CONTRACT The work described and claimed in this patent application was conducted under Cooperative Agreement No. DE-FC02-91 CE50336 with the Department of Energy of the United States of America.