A review on recent advancement in lithium-selenium batteries: Progress and prospects

Li-Se batteries are a new generation of batteries with noticeable benefits over the other Li-based counterparts, especially Li-S batteries owing to Se’s greater melting point and better electrical conductivity compared to S, resulting in a battery that is safer at high temperatures. As a result, Li-Se batteries perform better electrochemically and have a substantially higher conductivity. Although selenium has certain issues with sulfur, such as the shuttle effect, which reduces battery efficiency, many researchers have concentrated on Li-Se batteries because of the potential they provide, such as improved performance in common carbonate-based electrolytes. After the rise of Li-Se batteries in the last 10 years, many researchers focused on improving Li-Se batteries in different parts, such as electrode active materials, electrolytes, separators, and binders. In this paper, we review the recent investigations on Li–Se batteries.