Chemistry: electrical current producing apparatus – product – and – Sealed cell having gas prevention or elimation means – Prevention or elimination means is one of the cell...
Patent
1974-06-19
1976-09-14
Mack, John H.
Chemistry: electrical current producing apparatus, product, and
Sealed cell having gas prevention or elimation means
Prevention or elimination means is one of the cell...
429218, 428223, H01M 1034, H01M 1052
Patent
active
039805018
ABSTRACT:
Alkaline batteries are described in which a special electrode is incorporated in the positive electrode in order to give added protection against electrochemical damage due to battery reversal. This special electrode contains a hydrogen-absorbing material which also acts as a hydrogen electrode for the conversion of hydrogen ions into elemental hydrogen. Such alkaline batteries are particularly well protected against hydrogen overpressure due to battery reversal with only a small penalty in energy density. Particularly suitable for this application is the use of a hydrogen-absorbing material with nominal formula LnM.sub.5 in which Ln represents a lanthanide metal and M is either cobalt or nickel.
REFERENCES:
patent: 3108908 (1963-10-01), Krebs
patent: 3769088 (1973-10-01), Seiger et al.
patent: 3850694 (1974-11-01), Dunlop et al.
Feder David Oscar
Maurer Dean William
Bell Telephone Laboratories Incorporated
Feeley H. A.
Mack John H.
Nilsen W. G.
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