ALKALINE AIR Primary Batteries

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Alkaline air batteries will seek in the air the oxygen necessary for their satisfactory operation. Different electrochemical pairings are possible (alkaline air, acid air, etc.). The feature of the alkaline air pairing is its very high energy density: up to 380 Wh/kg and consequently its low weight at a given capacity.

The immense simplicity of their manufacture, as well as relatively inexpensive raw materials comes to a very cheap energy source. They have been used successfully for years in road signing, electrified fences, railways, etc.

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Road signing Features: Compact design Constant output throughout the discharge Very high energy density (380 Wh/kg) Air intake cut off when the battery is removed from the lantern Cheap  Considerable backup owing to high capacities (12V - 700Ah)
Electrified fences Features Voltage 9V or 12V Constant output throughout the discharge Low internal discharge (Reduced loss in the battery) Cheap  Any format for standalone devices up to 0.8 joules.
Railway Features Voltage 1.4V, 4.5V or 9V Use in safety lanterns (technical intervention, train formation, etc.) Very high backup Cheap
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