Challenges and possibilities for aqueous battery systems

Abstract

Fatal casualties resulting from explosions of electric vehicles and energy storage systems equipped with lithium-ion batteries have become increasingly common worldwide. As a result, interest in developing safer and more advanced battery systems has grown. Aqueous batteries are emerging as a promising alternative to lithium-ion batteries, which offer advantages such as low cost, safety, high ionic conductivity, and environmental friendliness. In this Review, we discuss the challenges and recent strategies for various aqueous battery systems that use lithium, zinc, sodium, magnesium, and aluminium ions as carrier ions. We also highlight the three key factors that need the most improvement in these aqueous battery systems: higher operating voltage for the cathode, a more stable metal anode interface, and a larger electrochemical stability window of the electrolyte.

Evaluating 3D printed mesh geometries in ceramic LiB electrodes

“…Although in general terms LiBs exhibit superior energy density, reliability, and cycling performance compared to other energy storage devices, the transition towards a sustainable energy economy and the recent advancements in microelectromechanical systems place on LiBs increasingly larger demands for higher energy densities in addition to more rigorous safety specifications [1][2][3]. Therefore, novel battery chemistries have been explored in the search for specific capacities beyond those of conventional LiB materials [4][5][6][7][8][9]. Nevertheless, several other alternative strategies have also been developed to achieve this goal such is the broadening of the electrochemically active potential window [10,11] and the use of alternative storage devices based on new electrochemical reactions [12,13].…”

Correlation of solute diffusion with dynamic viscosity in lithium salt-added (choline chloride + glycerol) deep eutectic solvents

“…1–3 Liquid electrolytes usually include aqueous and organic electrolytes, ionic liquids and molten salts. While the use of aqueous electrolytes has several documented restrictions, 4 due to the large-scale use of electrolytic solutions in chemistry and other fields the electrolytes based on organic solvents, ionic liquids and molten salts are not favored now due to associated inherent toxicity and environmental-damage constraints. 5,6…”

Core–shell Cu1−x NCo3−y /a-CuFeCo antiperovskite as high-performance anode for Li-ion batteries

“…Despite the huge initial success in the commercialization of this battery chemistry, intense research is continuously being done toward the search of new and alternate materials that could enhance all the battery qualifying factors such as very high energy and power density and excellent stability for both the anode and the cathode electrode materials [1]. The need for seeking battery performance enhancements and even search for newer chemistries have arisen during the past several years because of the international drive for highly enhanced clean energy usage which necessarily requires good and robust storage options [2,3].…”