LAUSR

Unlike the traditional metal-ion insertion, the emerging aqueous rechargeable ammonium ion batteries (ARABs) brings new battery chemistries for future stationary energy storage. However, low energy density and low durability hinder the further development of ARABs because of the lack of suitable and cost-efficient anode. Here, an aqueous rechargeable ammonium zinc hybrid battery (ARAHB) is first fabricated with durable corner-truncated Na-FeHCF nanocubes as cathode and low-cost zinc as anode. This novel hybrid battery demonstrates an average working voltage of 1.3 V, excellent rate capability, and high energy density of 81.7 Wh kg-1 at 286 W kg-1 (based on two electrodes' active mass) as well as long-term lifespan with 92.1% capacity loss after 2000 cycles, outperforming the reported aqueous ARABs and many aqueous hybrid batteries. The strategy to assemble ammonium zinc hybrid battery provides a guidance for improving the feasibility of ARABs for practical application.