Thermal battery cells containing novel cathode materials in an o

Details Thermal battery cells containing novel cathode materials in an o Thermal battery cells containing novel cathode materials in an o

1990-08-06

1995-06-06

Nelson, Peter A.

Chemistry: electrical current producing apparatus, product, and

Deferred action type

Responsive to heat

429199, 429225, H01M 636

Patent

active

H00014494

ABSTRACT:
The addition of cathode materials comprising In.sup.+++, Pb.sup.++ or Cd.sup.++ ion, e.g. in the form of salts such as In(NO.sub.3).sub.3, Pb(NO.sub.3).sub.2, Cd(NO.sub.3).sub.2 or the corresponding perchlorates, to oxyanionic electrolyte cells increases cell potential. Such cathodic materials are added to lower melting fused salt oxyanionic electrolytes such as nitrate or perchlorate electrolytes, e.g. LiNO.sub.3, KNO.sub.3 or LiCl0.sub.4, in a concentration sufficient to increase cell potential, using Li or Ca anodes. A suitable metal current collector such as a Ni screen can be used as a cathode. The above cathodic materials can be used in conjunction with other cathodic materials such as AgNO.sub.3, which undergoes reduction to the free metal.

REFERENCES:
patent: 4260667 (1981-04-01), Miles et al.
patent: 4416958 (1983-11-01), Miles et al.
patent: 4528253 (1985-07-01), McManis, III et al.
patent: 4535037 (1985-08-01), McManis, III et al.
patent: 4668594 (1987-05-01), Yamaura et al.
M. H. Miles, et al., "Problems Associated with the Electrochemical Reduct of Metal Ions in LiNO.sub.3 --KNO.sub.3 and LiClO.sub.4 --KClO.sub.4 Melts", vol. 134, No. 3, Mar. 1987, pp. 614-620.
M. H. Miles, et al., "Cyclic Voltammetric Studies of Nitrato Complexes of Various Metal Ions in Molten LiNo.sub.3 +KNO.sub.3 at 180.degree. C.", J. Electroanal. Chem., vol. 221 (1987) pp. 115-128.

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