About Zinc Air Batteries

Unlike most common disposable and rechargeable batteries used today, zinc air batteries are powered by exposing zinc metal powder and electrolyte, to oxygen from the air to generate electricity. The zinc air battery user literally removes a tab to break the seal, allowing air to flow into the cell, activating the battery and generating an electric current.

The MetAir® technology results in zinc air batteries with very high energy densities packaged in smaller and lighter form factors. Because air from the atmosphere is a reactant in the cathode and not packaged within the battery, a cell has more room to store and use the zinc metal “fuel” in the anode to increase capacity or run time.

As a result, MetAir® Cells have a higher energy-to-weight ratio than any other commercially available primary battery and a long stable shelf life of up to 3 years, due to an extremely low self-discharge rate of less than 5% per year (sealed). Zinc air batteries are also considered environmentally friendly – “clean and green energy sources” – safe, non-combustible, non-toxic and contain no added mercury, cadmium, lead or lithium.

Learn more about zinc-air technology here.

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About Zinc Air Batteries

About Zinc Air Batteries

Batteries of all types have two main components; anodes and cathodes along with other key ingredients such as an active catalyst and electrolyte to connect and activate them.  For zinc air battery operation, the fuel for the cathode is simply oxygen from the air we breathe and the fuel for the anode is zinc metal powder. Inside the battery, a mass of zinc particles form a porous anode, which is saturated with an electrolyte to make it electrically conductive.  Oxygen causes a reaction that forms hydroxyl ions, which in turn forms zincate, thereby releasing electrons to travel to the cathode.  QSI’s patented nanotechnology production processes create the high surface area advanced catalysts that facilitate this electrochemical reaction with greater efficiencies, resulting in higher energy densities within the zinc air batteries.

Unlike a conventional battery that contains both cathode and anode material, oxygen from the atmosphere is one of the battery reactants and is not packaged within the battery.  So a cell can contain more zinc fuel in the anode to provide more capacity, or run time, than a conventional battery.  As a result, the MetAir® Ranger PPS has higher energy capacity-to-volume (and weight) ratio than any other commercially available battery.

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