Efficient power supply for electric vehicles: Sodium-ion batteries

Abstract

Energy is an important way to help daily work in various aspects of daily life. But energy cannot just exist around people without any carriers. Nowadays, sodium-ion batteries have been the best choice to be the carrier or power supply on account of the amount of sodium resources. On the other hand, it was anticipated that employing Na and Al current collectors for the cathode and anode would reduce costs. This paper mainly analyzes the current sodium ion battery structure, materials, and working principle, compared with other batteries' advantages and disadvantages and future development direction. The second part introduces sodium-ion batteries' anode and cathode materials, as well as the current mainstream materials, composition, and comparison between different mainstream materials. Sodium-ion battery is a relatively advanced battery in modern life, and its advantages are significantly greater than the lithium battery that is now used in life, especially in electric vehicles.