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Title: Compacted carbon for electrochemical cells

Abstract

This invention provides compacted carbon that is useful in the electrode of an alkali metal/carbon electrochemical cell of improved capacity selected from the group consisting of: (a) coke having the following properties: (i) an x-ray density of at least 2.00 grams per cubic centimeters, (ii) a closed porosity of no greater than 5%, and (iii) an open porosity of no greater than 47%; and (b) graphite having the following properties: (i) an x-ray density of at least 2.20 grams per cubic centimeters, (ii) a closed porosity of no greater than 5%, and (iii) an open porosity of no greater than 25%. This invention also relates to an electrode for an alkali metal/carbon electrochemical cell comprising compacted carbon as described above and a binder. This invention further provides an alkali metal/carbon electrochemical cell comprising: (a) an electrode as described above, (b) a non-aqueous electrolytic solution comprising an organic aprotic solvent and an electrolytically conductive salt and an alkali metal, and (c) a counterelectrode.

Inventors:
 [1];  [2]
  1. Medina, OH
  2. Strongsville, OH
Issue Date:
Research Org.:
US ADVANCED BATTERY CONSORTIUM
OSTI Identifier:
871181
Patent Number(s):
5677082
Assignee:
UCAR Carbon Technology Corporation (Danbury, CT)
DOE Contract Number:  
FC02-91CE50336
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
compacted; carbon; electrochemical; cells; provides; useful; electrode; alkali; metal; cell; improved; capacity; selected; consisting; coke; following; properties; x-ray; density; 00; grams; cubic; centimeters; ii; closed; porosity; iii; 47; graphite; 20; 25; relates; comprising; described; binder; non-aqueous; electrolytic; solution; organic; aprotic; solvent; electrolytically; conductive; salt; counterelectrode; cubic centimeter; aprotic solvent; electrolytic solution; electrochemical cells; alkali metal; electrochemical cell; solution comprising; cell comprising; aqueous electrolytic; non-aqueous electrolytic; organic aprotic; compacted carbon; conductive salt; improved capacity; /429/423/

Citation Formats

Greinke, Ronald Alfred, and Lewis, Irwin Charles. Compacted carbon for electrochemical cells. United States: N. p., 1997. Web.
Greinke, Ronald Alfred, & Lewis, Irwin Charles. Compacted carbon for electrochemical cells. United States.
Greinke, Ronald Alfred, and Lewis, Irwin Charles. Wed . "Compacted carbon for electrochemical cells". United States. https://www.osti.gov/servlets/purl/871181.
@article{osti_871181,
title = {Compacted carbon for electrochemical cells},
author = {Greinke, Ronald Alfred and Lewis, Irwin Charles},
abstractNote = {This invention provides compacted carbon that is useful in the electrode of an alkali metal/carbon electrochemical cell of improved capacity selected from the group consisting of: (a) coke having the following properties: (i) an x-ray density of at least 2.00 grams per cubic centimeters, (ii) a closed porosity of no greater than 5%, and (iii) an open porosity of no greater than 47%; and (b) graphite having the following properties: (i) an x-ray density of at least 2.20 grams per cubic centimeters, (ii) a closed porosity of no greater than 5%, and (iii) an open porosity of no greater than 25%. This invention also relates to an electrode for an alkali metal/carbon electrochemical cell comprising compacted carbon as described above and a binder. This invention further provides an alkali metal/carbon electrochemical cell comprising: (a) an electrode as described above, (b) a non-aqueous electrolytic solution comprising an organic aprotic solvent and an electrolytically conductive salt and an alkali metal, and (c) a counterelectrode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

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