Batteries containing bismuth glass compositions
AssigneeHollingsworth & Vose Company
InventorsGeorge Zguris, John Windisch, Patrick Svoboda, Yuri Vulfson
Life of this patent
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Abstract
Disclosed are glass compositions, glass fiber compositions, glass fiber battery separators, glass fiber filter media, battery additives and active materials formed with glass compositions disclosed, glass fiber radiation shields, and glass fiber paper compositions. Certain embodiments include, among other components, bismuth oxide. Certain embodiments include about 0.5-30% bismuth oxide of the composition by weight and silica oxide at about 54-70% of the composition by weight. Embodiments may also include other components. For example, zinc oxide can make up about 0.01-3% of the composition by weight.
Claims11
A lead-acid battery comprising:
- electrode plates positioned in a housing;
- a lead-acid battery separator comprising glass fibers comprising bismuth oxide, wherein the battery separator is positioned between the electrode plates;
- and
- an electrolyte.
A method of decreasing hydrogen off-gassing in a lead-acid battery comprising:
- inserting a battery separator formed of glass fibers comprising bismuth oxide, between the electrode plates of the lead-acid battery.
Dependencies are inferred from the claim text.