Which is better, aluminum-air battery or lithium-ion battery?

Aluminum-air batteries are superior to lithium-ion batteries. At present, aluminum batteries that can replace lithium-ion batteries are still in the trial production stage and have not yet been put into commercial use. So in general, it is not clear whether aluminum-air batteries will replace lithium-ion batteries, so let us see what problems aluminum-air batteries will encounter when replacing lithium-ion batteries. In terms of battery life, aluminum-air batteries are a real breakthrough in lithium-ion batteries. However, the aluminum-air battery will undergo anode corrosion during the discharge process and hydrogen gas will not only lead to the loss of anode material, but also increase the internal loss of the battery. In addition, aluminum-air batteries consume aluminum, and aluminum must be reinstalled at the end of the battery life, which greatly hinders the commercial development of aluminum-air batteries. In terms of airborne applications, aluminum-air batteries are still an unknown, even inferior to hydrogen fuel-powered batteries. The chemical reaction of aluminum-air batteries is similar to that of zinc-air batteries. The aluminum-air battery uses high-purity aluminum (containing 99.99% aluminum) as the negative electrode, oxygen as the positive electrode, and potassium hydroxide (KOH) or sodium hydroxide (NaOH) as the electrolyte. Aluminum absorbs oxygen from the air, and a chemical reaction occurs when the battery is discharged, which converts aluminum and oxygen into alumina. The battery can actually reach 300~400Wh/g, a very environmentally friendly high-quality battery; the structure and material of the battery can be changed according to the actual environment and requirements, and it has strong adaptability. It can be used both on land and in the deep sea. It can be used as a power lithium battery as well as a long-life high specific energy signal battery. The characteristics of the aluminum-air battery of the lithium-ion battery production company: high energy, the theoretical specific energy of the battery can reach 2290wh/kg, and the actual capacity is 300~400wh/kg, which is much higher than the energy of the current battery. Although the specific energy of the battery is similar, its safety is not good enough. It cannot be used for power lithium battery. The characteristic of the medium specific power of 50~200w/kg is obviously determined by the oxygen electrode. Because the oxygen electrode is far away from its thermodynamic equilibrium potential. The exchange current density is very small, and the battery discharge polarization is very large. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.