Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1988-10-24
1990-08-21
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429103, H01M 440
Patent
active
049505661
ABSTRACT:
The negative electrode of an electrochemical cell with lithium as the electroactive species includes a metal silicide. This metal silicide can be an alloy (that is, a multimetallic silicide) that reacts with lithium and acts as a reversible lithium reservoir during cell operation. Electrochemical cells in accordance with the invention have excellent kinetics and higher theoretical specific energy that the Li-Si binary alloys presently used in some thermal batteries. Magnesium silicide, calcium silicide and molybdenum silicide are particularly preferred materials for these negative electrodes due to their thermodynamic properties.
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patent: 4340652 (1982-07-01), Raistrick et al.
patent: 4405416 (1983-09-01), Raistrick et al.
Huggins, "Polyphase Alloys as Rechargeable Electrodes in Advanced Battery Systems", Space Electrochemical Research and Technology, NASA Conference Publication 2484, p. 1979 (1987); Journal of Power Sources 22, p. 341 (1988).
Huggins, "Materials Science Principles Relating to Alloys of Potential Use in Rechargeable Lithium Cells", paper to be published in Journal of Power Sources.
Anani et al., "Kinetic and Thermodynamics of Several Bindary Lithium Alloy Negative Electrode Materials at Ambient Temperature", Journal of the Electrochemical Society 134, No. 12, p. 3098, Dec. 1987.
Anani Anaba A.
Huggins Robert A.
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