Compacted carbon for electrochemical cells
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.
- Research Organization:
- US Advanced Battery Consortium
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC02-91CE50336
- Assignee:
- UCAR Carbon Technology Corp., Danbury, CT (United States)
- Patent Number(s):
- US 5,677,082/A/
- Application Number:
- PAN: 8-654,644
- OSTI ID:
- 541727
- Resource Relation:
- Other Information: PBD: 14 Oct 1997
- Country of Publication:
- United States
- Language:
- English
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