Expanders for lead-acid batteries
First Claim
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1. An expander for a battery paste for a battery plate for a lead-acid battery, comprising:
- barium sulfate;
an elevated concentration of carbon and/or graphite; and
an organic material.
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Abstract
An expander formulation used in battery paste compositions. The expander formulation incorporates effective amounts, or elevated concentrations of up to 6% of graphite and mixtures of carbon black and graphite to lessen or minimize the accumulation of lead sulfate on the surface of the negative plate during high rate PSOC battery operation, and/or to increase the electrochemical efficiency, the reserve capacity, the cold cranking performance and the cycle life of lead-acid batteries.
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Citations
24 Claims
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1. An expander for a battery paste for a battery plate for a lead-acid battery, comprising:
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barium sulfate; an elevated concentration of carbon and/or graphite; and an organic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for producing battery paste for a battery plate for a lead-acid battery, comprising the steps of:
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formulating a battery paste mix; adding to the battery paste mix, separately or premixed, barium sulfate, an organic material, and an elevated concentration of carbon and/or graphite. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification