Research for Fabrication of Lithium-Ion Capacitor by Vertical Doping Method and Slurry Pre-Doping Method

Osaka Electro-Communication University, Japan

Abstract: A lithium-ion capacitor is called a “hybrid capacitor”. It is a new energy storage device that combines the advantages of lithium-ion batteries that have been widely used and electric double-layer capacitors used for energy regeneration and electric power storage of automobiles. As it has not been long since the development of lithium-ion capacitors was started, it is generally difficult to procure them from the market except some overseas and Japanese manufacturers. However, many different varieties of lithium-ion capacitors are expected to be commonly used with the future development of the market. There is a demand for stable power supply through cooperation between the power system and secondary batteries, but lithium-ion capacitors are expected to be adaptable due to their quick response and large capacity. This study opens a new path to the development of lithium-ion capacitors.