Abstract |
Potassium-ion batteries (KIBs) have attracted considerable interest for use as alternative energy storage systems due to their fast ionic conductivity, high operating voltage, low flammability, low cost, and high energy density. However, the research on KIBs is still in its infancy compared with the commercialized Lithium-ion batteries (LIBs). Therefore, it is very essential for battery researchers to understand effects of each component and charge storage mechanisms in electrode materials for further developments of high performance KIBs. This will enable KIBs to become the alternative energy storage technology to compensate limitations of LIBs in the future. In this review, we summarize recent research on the important issues of electrode materials, electrolytes and challenges facing of KIBs technology for commercialization. |