Ternary compound electrode for lithium cells

Details Ternary compound electrode for lithium cells Ternary compound electrode for lithium cells

1980-07-30

1982-07-20

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to heat

429199, 429218, 2521821, H01M 440, H01M 636

Patent

active

043406521

ABSTRACT:
Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and of light weight. One type of lithium-based cell utilizes a molten salt electrolyte and normally is operated in the temperature range of about 350.degree.-500.degree. C. Such high temperature operation accelerates corrosion problems. The present invention provides an electrochemical cell in which lithium is the electroactive species. The cell has a positive electrode which includes a ternary compound generally represented as Li-M-O, wherein M is a transition metal. Corrosion of the inventive cell is considerably reduced.

REFERENCES:
patent: 3898096 (1975-08-01), Heredy et al.
patent: 3969139 (1976-07-01), Lai
patent: 4011374 (1977-03-01), Kaun
patent: 4130500 (1978-12-01), Melendres et al.
patent: 4164069 (1979-08-01), Tomczuk
K. Mizushima et al., "Li.sub.x CoO.sub.2 (O.ltoreq.X.ltoreq.1), A New Cathode Material for Batteries of High Energy Density," Mat. Res. Bull., 15, 783 (1980).

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