KAIST researchers have developed a breakthrough hybrid sodium-ion battery with high power and energy density, promising rapid charging for applications in electric vehicles and other advanced technologies. But unlike lithium, a somewhat rare element that is currently mined in only a handful of countries, sodium is cheap and found everywhere. And while today's sodium-ion. . A research team led by Professor Kang Jeong-gu from the Department of Materials Science and Engineering has created a high-energy, high-power hybrid Sodium-ion Battery. Sodium (Na), being more than 500 times as abundant as lithium (Li), has recently attracted. . The innovative hybrid energy storage system integrates anode materials typically used in batteries with cathodes suitable for supercapacitors. Electrochemical characterizations of FS/C/G-20//ZDPC SIHES full cells (left).