Galvanic element with integral getter
Non-aqueous alkaline cells, particularly those with Li anodes, are effectively protected against oxidation or carbonization due to inwardly diffusing moisture by providing them with a getter material of high specific adsorbtivity for gases. For this, there are particularly useful molecular sieves of the Zeolite type, of highly active aluminum oxide, or of silica gel. For retaining the getter, there can be used as receptor media the porous separator or the solid cathode material, and if appropriate also the solid electrolyte. In addition, the getter material can form an extrudable or injectable composite polymer with the plastic of a conventional housing seal, which functions as a water vapor barrier right in the sealing region.
- Assignee:
- Varta Batterie Aktiengesellschaft (Germany, Federal Republic of)
- Patent Number(s):
- US 4448860
- OSTI ID:
- 6202306
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ADSORBENTS
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ANODES
CARBONIZATION
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
GETTERS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LITHIUM
MATERIALS
METALS
MINERALS
MOISTURE
MOLECULAR SIEVES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
SILICA GEL
SOLID ELECTROLYTES
ZEOLITES