Scientists design super-battery made with cheap, readily affordable chemical element, Na — Salt-based cell has surprisingly good energy density and charges in seconds

Researchers at the Korea Advanced Institute of Science and Technology (KAIST) have developed a high-performance, hybrid sodium-ion battery that charges rapidly and offers impressive energy density.

This revolutionary prototype uses sodium (Na), a chemical element over 1000 times more abundant and cheaper than lithium (Li), the main component of conventional batteries.

Generally, sodium-ion batteries face constraints such as lower power output, limited storage properties, and extended charging times. The innovative battery design, led by Professor Jeung Ku Kang of the Department of Materials Science and Engineering at KAIST, combats existing limitations of sodium-ion batteries by integrating the anode materials used in traditional batteries with the cathodes used for supercapacitors into a hybrid system. The result reportedly delivers high storage capacity and rapid charge-discharge rates.

Multiple possibilities

Developing the hybrid battery hinged upon improving the energy storage rate of battery-type anodes and boosting the relatively low capacity of supercapacitor-type cathode materials ...