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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: (1) an x-ray density of at least 2.00 grams per cubic centimeters, (2) a closed porosity of no greater than 5%, and (3) an open porosity of no greater than 47%; and (b) graphite having the following properties: (1) an x-ray density of at least 2.20 grams per cubic centimeters, (2) a closed porosity of no greater than 5%, and (3) 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 counter electrode. 10 figs.

Inventors:
;
Issue Date:
Research Org.:
US Advanced Battery Consortium
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
541727
Patent Number(s):
5,677,082
Application Number:
PAN: 8-654,644
Assignee:
UCAR Carbon Technology Corp., Danbury, CT (United States) PTO; SCA: 250903; 330300; PA: EDB-97:141105; SN: 97001865603
DOE Contract Number:  
FC02-91CE50336
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 14 Oct 1997
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 33 ADVANCED PROPULSION SYSTEMS; ELECTRIC BATTERIES; ELECTRODES; ELECTRIC-POWERED VEHICLES; ALKALI METALS; CARBON; COKE; DENSITY; POROSITY; GRAPHITE; DESIGN; ELECTROLYTES

Citation Formats

Greinke, R.A., and Lewis, I.C. Compacted carbon for electrochemical cells. United States: N. p., 1997. Web.
Greinke, R.A., & Lewis, I.C. Compacted carbon for electrochemical cells. United States.
Greinke, R.A., and Lewis, I.C. Tue . "Compacted carbon for electrochemical cells". United States.
@article{osti_541727,
title = {Compacted carbon for electrochemical cells},
author = {Greinke, R.A. and Lewis, I.C.},
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: (1) an x-ray density of at least 2.00 grams per cubic centimeters, (2) a closed porosity of no greater than 5%, and (3) an open porosity of no greater than 47%; and (b) graphite having the following properties: (1) an x-ray density of at least 2.20 grams per cubic centimeters, (2) a closed porosity of no greater than 5%, and (3) 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 counter electrode. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {10}
}