Improved battery capacity and cycle life in iron-air batteries with ionic liquid

Historical development and novel concepts on electrolytes for aqueous rechargeable batteries

“…The theoretical energy density of Al//air batteries (AABs, 8140 W h kg À1 ) is much higher than that of ZABs (1350 W h kg À1 ), while that of Fe//air batteries (IABs) is 1200 W h kg À1 . 126,127 Considering this, AABs should be more promising; however, they suffer significantly from self-corrosion of the anode and sluggish kinetics, which demand a rational electrolyte with good stability and electrode/electrolyte interface process. Initially, NaCl aqueous solution was utilized as the electrolyte for AABs, but the energy density was restricted in the neutral condition, and then an alkaline system was introduced for not only AABs (KOH) but also IABs (KOH + LiOH).…”

A review on development of metal–organic framework-derived bifunctional electrocatalysts for oxygen electrodes in metal–air batteries

“…This battery system has been perceived as a supplementary battery with more sophisticated technologies as a result. 70…”

Challenges and Opportunities of Ionic Liquid Electrolytes for Rechargeable Batteries

“…Ionic liquids at higher purity possess excellent electrical conductivity, stability, and a wide electrochemical window. Most ionic liquids exhibit an electrochemically stable potential window of ∼4 V. − However, these properties also suffer from coulombic interactions between positive and negative ions. It is generally considered feasible to design target ILs on demand because of the wide variety of ILs available and the designability.…”