Metal oxides in lead-acid batteries
AssigneeTrojan Battery Company
InventorsCormac O'Keeffe, Anita Hamilton, Marvin Ho
Life of this patent
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Abstract
Disclosed is a lead acid battery having a negative electrode plate and a positive electrode plate, each plate formed of a lead-antimony grid coated with an active material. A separator is disposed between the first and second electrode plate faces and an electrolyte solution immersing the negative electrode plate, the positive electrode plate the separator. At least one of the lead-antimony electrode grids, the separator or the electrolyte solution contains TiO2, an amount sufficient to suppress the migration of antimony from the positive electrode plate to the negative electrode plate.
Claims11
An electrolyte solution for a lead acid battery, the electrolyte solution comprising:
- an electrolyte;
- and
- TiO2 in an amount sufficient to suppress migration of antimony from a positive electrode plate to a negative electrode plate of the lead acid battery.
A lead acid battery comprising:
- a housing;
- a negative electrode plate in the housing and including a first surface;
- a positive electrode plate in the housing and including a second surface opposing the first surface, where the negative and the positive electrode plates each include a lead-antimony grid coated with an active material;
- a separator between the first and the second surfaces;
- and
- an electrolyte solution immersing the negative electrode plate, the positive electrode plate, and the separator, wherein
- the electrolyte solution contains TiO2 in an amount sufficient to suppress migration of antimony from the positive electrode plate to the negative electrode plate, and
- a concentration of TiO2 in the electrolyte solution is from about 0.1 g/ml to about 20 g/ml.
Dependencies are inferred from the claim text.