The main shortages of traditional current battery: 1. The service life is short, and it needs to be charged and replaced regularly. 2. The safety is poor and there is a danger of explosion. 3. The battery has a high cost and cannot be discharged with a large current. 4. Large environmental pollution. The reactants of lithium batteries and lead-acid batteries contain a large amount of heavy metal pollutants, which have a great impact on the environment, and the pollutant treatment cost is high. Advantages: Compared with traditional battery, the main advantages of aluminum-air batteries are: 1. Aluminum has high specific energy and high conversion efficiency. 2. Strong environmental adaptability, the ambient temperature is -30~+55℃, it can generate electricity as long as there is water, and the power output is full. 3. Safe and reliable, the aluminum electrode air electrode material has stable chemical properties, does not burn or explode, the battery core has a low operating temperature, no mechanical vibration, no fire and explosion and other safety hazards. 4. Green and pollution-free, economical and cost-effective. The raw material resources are abundant, the production of aluminum hydroxide and other aluminum by-products can be recycled and reused, and the manufacturing, operation, and maintenance costs are economic.