Traditionally most portable and mobile applications are enabled by batteries. However, the batteries are not the optimal energy storage cells for quick charge or release of large currents when needed. To ensure such characteristics, hybrid energy storage cells (also known as lithium-ion or sodium-ion capacitors, depending on their chemistry type) may be used. The drastic advantages of hybrid energy storage cells is their extreme speed (for example, the ability to charge in as much as a few seconds) and power density. This projects will investigate materials chemistry of negative and positive electrodes that can enable such a high-speed, unusual operation of electrochemical energy storage cells.

Image