All-solid electrodes with mixed conductor matrix

Details All-solid electrodes with mixed conductor matrix All-solid electrodes with mixed conductor matrix

1981-07-30

1984-03-13

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to heat

429218, H01M 440

Patent

active

044367961

ABSTRACT:
Alkali metal based electrochemical cells offer a great deal of promise for applications in many areas such as electric vehicles and load leveling purposes in stationary power plants. Lithium is an attractive candidate as the electroactive species in such cells since lithium is very electropositive, abundant and light weight. One type of lithium-based cell utilizes a molten salt electrolyte and normally is operated at elevated temperatures. The subject invention provides an electrochemical cell in one embodiment of which lithium is the electroactive species. The cell comprises an electrolyte, a positive electrode, and a negative electrode, either or both of which is an all-solid, composite microstructural electrode containing both a reactant phase and a mixed ionic-electronic conducting phase. The cells of the subject invention exhibit improved kinetic features, current and power densities. Repeated charging and discharging of these cells can be accomplished without appreciable loss of capacity.

REFERENCES:
patent: 4048395 (1977-09-01), Lai
Boukamp et al., (II), All-Solid Lithium Electrodes with Mixed-Conductor Matrix, Journal of Electrochemical Society, 128 (4), 725 (1981).
Boukamp et al., (III), All-Solid Lithium Electrodes with Mixed-Conductor Matrix, Symposium on Lithium Batteries, Electrochemical Society, Jan. 1981.
Boukamp et al., (IV), All-Solid Lithium Electrodes with Mixed-Conductor Matrix, Journal of Electrochemical Society, vol. 127, No. 8, Aug. 1980, Abstract No. 85.
Boukamp et al., (V), All-Solid Lithium Electrodes with Mixed-Conductor Matrix, Electrochemical Society Extended Abstracts, vol. 80-82, Fall Meeting Hollywood, Florida, Oct. 5-10, 1980.
Boukamp et al., All-Solid Lithium Electrodes with Mixed-Conductor Matrix, J. Electrochemical Soc., Apr. 1981, pp. 725-728.

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