Enhanced storage behavior of quasi-solid-state aluminum-selenium battery.

The current aluminum batteries with selenium positive electrodes have been suffering from dramatic capacity loss owing to the dissolution of SeCl products on the Se positive electrodes in the ionic liquid electrolyte. For addressing this critical issue and achieving better electrochemical performances of rechargeable aluminum-selenium batteries, here a gel-polymer electrolyte which has a stable and strongly integrated electrode/electrolyte interface was adopted. Quite intriguingly, such a gel-polymer electrolyte enables the solid-state aluminum-selenium battery to present a lower self-discharge and obvious discharging platforms.