Hammond Group, Inc.

David Paul Boden

Benjamin Paul Labovitz

Daniel V Loosemore

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.

Expanders for lead-acid batteries

A battery paste composition incorporates and promotes the formation of tetra basic lead sulfate using a micronized TTBLS additive, and eliminates free lead using a special oxide, during paste mixing and drying. Battery plates utilizing the disclosed battery paste composition are produced without the need for curing, and instead can be used in the battery immediately following plate drying.

Cureless battery paste and method for producing battery plates

A battery paste additive, and process for making the same comprising micronized seed crystals of tetra basic lead sulfate, is added to battery paste and results in accelerated curing time and other improvements in battery performance. The battery paste additive may be used to produce positive or negative battery plates and may be use with conventional mixing, pasting and curing processes and equipment.

Growing community of inventors

Charlottesville, VA, United States of America

David Paul Boden