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Mobile air-aluminum electrochemical generators for battery-driven automobile
An electrochemical generator has been developed, which utilizes air-aluminum fuel cells with alkali electrolyte (AA ECG) with a power of 1.75 kW.
The AA ECG is designed for operation as a source of energy included in a combination transport energy unit.
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The AA ECG consists of an air-aluminum battery and electrolyte circulation and air supply circuits; these circuits include a pump, a precipitator tank, and a fan. The heat released during the battery operation is removed by air blowing over the cathodes. For precluding the adverse effect of the atmosphere, which causes the drying and carbonization of the cathodes when the battery is inoperative, the air channels at the battery inlet and outlet are provided with shutters which are opened before starting the battery. |
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The air cathodes for AA ECG are prepared at INEP JIHT RAS using carbon materials and utilize activated carbon as catalyst.
The AA ECG has a specific energy of 270 W-h/kg, which is three to five times that of conventional electrochemical sources. The electrochemical capacity is 600 A-h. The conservation period of the battery before setting in operation is 15–20 years. At a voltage of 24–27 V, the rated current of discharge will be 60 A dc. With this current, the AA ECG is capable of continuously generating electrical power for ~10 hours.
The expected quantity-production cost price of AA ECG will be five to six thousand rubles, and the cost of generated electrical power is defined by the cost of the anodes and estimated at ~0.06 ruble per watt-hour, which is comparable with the cost of electrical power generated by air-hydrogen fuel cells and is much lower than in other expendable emergency batteries. The mass of AA ECG without electrolyte is about 40 kg.
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Air-aluminum electrochemical generators
An electrochemical generator has been developed, which utilizes air-aluminum fuel cells with alkali electrolyte (AA ECG) with a power of 1.75 kW.
The generator is designed for use as an emergency source of power supply for control equipment of systems of district heating in the case of prolonged emergency cutoff of electricity, as well as for power supply of systems of light marking of the limits of danger zones during the dark hours in civil engineering and road building.
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The AA ECG consists of an air-aluminum battery and electrolyte circulation and air supply circuits; these circuits include a pump, a heat exchanger, a precipitator tank, and a fan. The heat exchanger is designed for cooling electrolyte and heating air, and the precipitator tank – for storing electrolyte and for separating the reaction products. The circulation system is provided with control equipment and pipe connections for putting in electrolyte and for discharging the reaction products. The AA ECG is recharged by way of replacing the anodes and alkali electrolyte |
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The air cathodes for AA ECG are prepared at INEP JIHT RAS using carbon materials and utilize activated carbon as catalyst.
The AA ECG has a specific energy of 200 W-h/kg, which is three to five times that of conventional electrochemical sources. The electrochemical capacity is 600 A-h. The conservation period of the battery before setting in operation is 15–20 years. At a voltage of 24–27 V, the rated current of discharge will be 60 A dc. With this current, the AA ECG is capable of continuously generating electrical power for ~10 hours.
The expected quantity-production cost price of AA ECG will be five to six thousand rubles, and the cost of generated electrical power is defined by the cost of the anodes and estimated at ~0.06 ruble per watt-hour, which is comparable with the cost of electrical power generated by air-hydrogen fuel cells and is much lower than in other expendable emergency batteries. The mass of AA ECG without electrolyte is about 50 kg.
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