What are the characteristics of aluminum-air batteries?

The characteristics of aluminum-air batteries: 1. Large specific energy The actual specific energy of aluminum-air batteries only reaches 350~400Wh/kg, which is less than 5% of its theoretical value. But the specific energy of less than 5% is 7-8 times that of lead-acid batteries, 5.8 times that of nickel-hydrogen batteries, and 2.3 times that of lithium batteries. If electric vehicles with aluminum-air batteries are used, the driving range will be significantly improved. According to the analysis of relevant foreign data, in the state of California, the state of the United States used aluminum-air battery electric vehicles, there was a record of 1600km driving range with only one replacement of aluminum electrodes. 2. Lightweight The total energy of the lead-acid battery for traction developed and developed in my country is 13.5kWh and the total mass is 375kg. The total mass of aluminum-air batteries with the same energy is only 45kg, which is 12% of the mass of lead-acid batteries. As the quality of the battery is greatly reduced, the quality of the vehicle is also reduced, which can increase the loading energy of the vehicle or extend the driving range. 3. Aluminum is not toxic and dangerous. Aluminum will not cause harm to the human body. It can be recycled and reused without polluting the environment. The raw materials of aluminum are abundant, and there are large-scale aluminum smelters, and the processing cost is relatively low. Aluminum recycling is convenient and the cost of recycling is also low. Moreover, the method of replacing the aluminum electrode can be used to solve the problem of slow charging of the aluminum-air battery. Just as all things have their advantages and disadvantages, aluminum-air batteries also have disadvantages. Although it contains high specific energy, the specific power is low, the charging and discharging speed is relatively slow, the voltage is lagging, and the self-discharge rate is relatively large. A thermal management system must be adopted to prevent the aluminum-air battery from overheating during operation. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the differences between the lithium battery capacity and the rated capacity?