PAC Fuel Cell

Zinc Air Fuel Cell ("ZAFC")

The ZAFC was developed at the world-renowned DOE Lawrence Livermore National Laboratory (LLNL) in California. By solving longstanding issues related to power consistency and by making the fuel cell re-fuelable, the scientists at LLNL developed a power generation and storage technology that dramatically changes the competitive landscape for fuel cells.

Zinc + Air = Energy

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The ZAFC is a metal oxide fuel cell using relatively simple physical chemistry. It uses a combination of atmospheric oxygen and zinc pellets in a liquid alkaline electrolyte to generate electricity with by products of zinc oxide and potassium zincates. In operation, the fuel cell consumes all of the zinc; and is operationally quiet, providing instantaneous stable electrical energy with zero greenhouse gas emissions.

The ZAFC single unit consists of an overlying hopper connected by conduits to an electrochemical cell. Electrolyte is flowed upwards through the patented cell design to remove waste heat and reaction by-products. The hoppers may be refueled by flowing a slurry of zinc particles and electrolyte in channels above the cells.

Patented ZAFC - Particle Bridging

To see an animated version of the reaction click here.

PAC's Patented Technology results in constant power output and allows for re-fueling of the fuel cell. The Particle Bridging illustrated above maintains an open cell that allows electrolyte to flow easily without clogs, and to remove heat and zinc-oxide by products.