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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)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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}
}

Works referenced in this record:

Porosity in Carbons and Graphites
book, January 1989


Electrodic characteristics of various carbon materials for lithium rechargeable batteries
journal, July 1995


Historical development of secondary lithium batteries
journal, August 1994


Grading Aggregates - I. - Mathematical Relations for Beds of Broken Solids of Maximum Density
journal, September 1931


Heat Transfer Phenomena in Lithium/Polymer-Electrolyte Batteries for Electric Vehicle Application
journal, January 1993