The South Korean researchers have developed a high-power hybrid sodium-ion battery that can be charged in seconds.
Sodium is nearly 1000 times more abundant than lithium and is less rare a mineral.
So, a sodium-ion electrochemical energy storage would be a cheaper and potentially more feasible source of energy.
At present, the available sodium-ion energy storage systems are poor in rechargeability as they have a low power density while providing a relatively high energy density.