Activated reserve power supply

High power primary zinc-air cells are also developed with nominal current 20A -v 40A and capacity in the range 100 Ah -v 320 Ah. Typical application of these powerful zinc-air cells is as easy activated reserve power supply. These cells also can be successfully used for traction. 

Figure 20.11 is an illustration of a reserve Uthium/thionyl chloride battery using a bipolar plate construction. This battery weighs approximately 5.4 kg and has a volume of 2000 cm. Activation of the reserve battery is accomplished by supplying an electric pulse to the battery by firing an electric squib or actuator or by some mechanical means. This type of reserve battery has been used chiefly in artillery shells for electronic fuze power supplies and in missiles for the electronic power supply. Therefore the electric pulse can be supplied prior to firing or at the time of launch. However, for artillery fiize power supplies, the battery is usually activated by the launch acceleration (set back) and/or the spin forces. The accel-... 

Applications of Alkaline Aluminum/Air Batteries. The alkaline aluminum/air batteries being developed cover a wide range of applications from emergency power supplies to field-portable batteries for remote power applications and underwater vehicles. Most of these are designed as reserve batteries, which are activated before use, or mechanically recharged by replacing the exhausted aluminum anodes. 

Methane (natural gas) and petroleum are clearly more convenient to handle and use than coal. This situation led to widespread industrial use of these fuels for electric power production, industrial and residential fuel requirements and chemicals production. Recently, however, it has become apparent that more use must be made of coal to conserve supplies of natural gas and petroleum despite the difficulties in handling and use. There are large reserves of coal in many parts of the world, many near centers of population and industrial activity. 

Active searches for alternative forms of energy have been prompted by the growing recognition that reserves of coal and oil are finite and that nuclear power cannot supply all our energy requirements. Hydrogen has been considered as a source of fusion energy and/or clean energy. 

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