The company’s proprietary technology comprises a carbon foam based porous foam with thousands of open cells/pores.
Carbon foam structure redistributes the small separator reservoir of a conventional battery to the pores of the active foam battery plates themselves. This increases the efficiency of the lead-acid chemistry because each microcell has its full complement of sponge lead or lead dioxide and sulfuric acid electrolyte.
In carbon foam, the discrete microcells collectively make up a new type of electrolyte structure (3-D electrode, pictured on the right). This results in higher power, energy and cycle life, as well as greater energy delivery and faster recharge capabilities relative to a conventional lead-acid battery.
When compared to lead-acid chemistry, Firefly’s advanced battery technology increases the cycle life by a factor of two to three times, but it can be built for three-fifths the cost of other advanced material batteries.