Galvanic primary element with air electrode
AssigneeVarta Batterie Aktiengesellschaft
InventorsHans Sauer, Dieter Spahrbier
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Abstract
The negative zinc electrode of a primary element with alkaline electrolyte and hydrophobic air electrode has a compressible expansion body positioned within the negative electrode.
Claims16
A primary element with alkaline electrolyte and a hydrophobic air electrode which is electrolytically connected via a separator system to an electrolyte-containing negative electrode that includes zinc powder, the negative electrode being positioned in a metal cell cover and the positive electrode being positioned in a metal cell cup provided with an air inlet opening, and the cover and cup being sealed electrolyte-tight to each other, the element being characterized by
- a compressible expansion-absorbing body positioned within the negative electrode and surrounded by zinc in direct contact with the metal cell cover, and
- a hydrophobic air permeable layer attached to the air electrode.
Dependencies are inferred from the claim text.