Li MnO : A Catalyst for a Liquid Cl Electrode in Low-Temperature Aqueous Batteries.

Li MnO has been contemplated as a high-capacity cathode candidate for Li-ion batteries; however, it evolves oxygen during battery charging under ambient conditions, which hinders a reversible reaction. However, it is unclear if this irreversible process still holds under subambient conditions. Here, the low-temperature electrochemical properties of Li MnO in an aqueous LiCl electrolyte are evaluated and a reversible discharge capacity of 302 mAh g at a potential of 1.