Rechargeable electrochemical cell

Details Rechargeable electrochemical cell Rechargeable electrochemical cell

1980-01-07

1982-01-26

Lefevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 40, 429 60, H01M 400

Patent

active

043129285

ABSTRACT:
Rechargeable cell, which is sealed from the external atmosphere, having a negative electrode of, for example, LaNi.sub.5 or an intermetallic compound derived therefrom wherein the negative electrode has a greater quantity of electrochemically active compound than the positive electrode. When the positive electrode is in the fully discharged state, the excess quantity of active compound at the negative electrode is partly in the charged state (that is to say, being partly in the hydride form.).

REFERENCES:
patent: 2571927 (1951-10-01), Neumann et al.
patent: 3174879 (1965-03-01), Stanimirovitch
patent: 3405008 (1968-10-01), Dilworth et al.
patent: 3850694 (1974-11-01), Dunlop et al.
patent: 3980501 (1976-09-01), Feder et al.
patent: 4003754 (1977-01-01), Winsel et al.
patent: 4112199 (1978-09-01), Dunlop et al.
Hydrogen Absorp. in LaNi.sub.5 & Related Compounds: Exp. Observations & Their Explanation, van Mel et al., Jour. of the Less-Common Metals, 35 (1974), pp. 65-76.
Some Useful Relationships Between the Phy. & Thermodynamic Prop. of Metal Hydrides, Lundin et al., Intersoc. Energy Conv., Sep. 1976, pp. 961-964.
A Correlation Between the Interstitial Hole Sizes in Intermetallic Compound & the Thermodynamic Prop. of the Hydrides Formed from those Compounds, Lundin et al., Jour. of the Less-Common Metals, 56 (1977), pp. 19-37.

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