Chemistry: electrical current producing apparatus – product – and – Deferred action type – Responsive to heat
Patent
1980-08-12
1982-04-13
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Deferred action type
Responsive to heat
75124, 75134F, 75138, 75144, 429218, 429221, H01M 440, H01M 446
Patent
active
043248462
ABSTRACT:
A secondary electrochemical cell and a negative electrode composition for use therewith comprising a positive electrode containing an active material of a chalcogen or a transiton metal chalcogenide, a negative electrode containing a lithium-aluminum alloy and an amount of a ternary alloy sufficient to provide at least about 5 percent overcharge capacity relative to a negative electrode solely of the lithium-aluminum alloy, the ternary alloy comprising lithium, aluminum, and iron or cobalt, and an electrolyte containing lithium ions in contact with both of the positive and the negative electrodes. The ternary alloy is present in the electrode in the range of from about 5 percent to about 50 percent by weight of the electrode composition and may include lithium-aluminum-nickel alloy in combination with either the ternary iron or cobalt alloys. A plurality of series connected cells having overcharge capacity can be equalized on the discharge side without expensive electrical equipment.
REFERENCES:
patent: 3607413 (1971-09-01), Busselli
patent: 3957532 (1976-05-01), Settle et al.
patent: 4011372 (1977-03-01), Tomczuk et al.
patent: 4076905 (1978-02-01), Sammells
patent: 4079303 (1978-03-01), Cox
patent: 4158720 (1979-06-01), Kaun
Chilenskas Albert A.
Kaun Thomas D.
Besha Richard G.
Fisher Robert J.
Glenn Hugh W.
The United States of America as represented by the United States
Walton Donald L.
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