| abstract |
Disclosed are glass compositions, glass fiber compositions, glass fiber battery separators, glass fiber filter media, battery additives and active materials formed with the disclosed glass compositions, glass fiber radiation shields, and glass fiber paper compositions. . Some embodiments include bismuth oxide among the components. Some embodiments comprise about 0.5-30% by weight of the composition of bismuth oxide and about 54-70% by weight of the composition of silicon oxide. Embodiments may also include other components. For example, zinc oxide can comprise about 0.01 to 3% by weight of the composition. |