Glass compositions with leachable metal oxides and ions
AssigneeHollingsworth & Vose Company
InventorsJohn Wertz, Christopher Campion, Yuri Vulfson, Rene Gargan, Nicolas Clement, Randall Keisler
Life of this patent
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Abstract
The disclosure describes compositions and methods for producing a change in the voltage at which hydrogen gas is produced in a lead acid battery. The compositions and methods relate to producing a concentration of one or more metal ions in the lead acid battery electrolyte. The compositions include glass based compositions that are included as part of various battery components, such as the battery separator, pasting paper, additives to battery paste, etc.
Claims37
1-171. (canceled)
A lead-acid battery that comprises a negative electrode, a positive electrode, a separator between the negative and positive electrodes, and an electrolyte in contact with the negative and positive electrodes, wherein the lead-acid battery comprises a means for shifting the voltage at which hydrogen is produced at the negative electrode by between about 10 mV and about 120 mV.
A lead-acid battery that comprises a negative electrode, a positive electrode, a separator between the negative and positive electrodes, and an electrolyte in contact with the negative and positive electrodes, wherein the lead-acid battery comprises a means for providing metal ions into the electrolyte with a target concentration in the electrolyte that is selected from the group consisting of:
- between about 14.3 ppm and about 172 ppm of bismuth ions,
- between about 2.3 ppm and about 27.2 ppm of nickel ions,
- between about 2.3 ppm and about 27.2 ppm of tin ions,
- between about 4.6 ppm and about 55.1 ppm of antimony ions,
- between about 6.4 ppm and about 77.1 ppm of cobalt ions,
- between about 3.6 ppm and about 42.9 ppm of copper ions, and
- between about 3.6 ppm and about 42.9 ppm of titanium ions.
-216. (canceled)
Dependencies are inferred from the claim text.