Why can sodium batteries use aluminum foil
Release time:
Jul 14,2023
Sodium batteries are chemical batteries that use sodium as the positive electrode and carbon and other materials as the negative electrode. They can provide high voltage and mass energy density, and have good application prospects. Aluminum foil, on the other hand, is a major material used as a separator electrode material for sodium batteries. This is mainly because during chemical reactions in sodium batteries, sodium ions are easily adsorbed and repelled by the pores in the separator. In addition, when sodium ions are energized, lithium ions and other impurities in the separator move with them, resulting in more stringent material selection for the separator. Aluminum foil, due to its good conductivity, high conductivity, and low conductivity impedance, can withstand the high voltage generated by sodium ion reactions well without electrochemical reactions at the electrodes, thus ensuring the normal operation of sodium batteries.
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