A Sustainable NH ₄ ⁺ Ion Battery by Electrolyte Engineering

Aqueous ammonium ion battery is a promising sustainable energy storage system. However, the side reactions originating from electrolytes (the water decomposition and host material dissolution) preclude its practical applications. Unlike metal-based aqueous batteries, idea of “ultrahigh concentrated electrolyte” not feasible due to strong hydrolysis ions. Therefore, we propose an effective strategy for hydrogen bond network modulation by adding sucrose into electrolytes. The can form sucrose-water networks break continuous network, thereby inhibiting significantly. Moreover, weak interaction between facilitates rapid migration, leading improved ionic conductivity. This work presents new electrolyte modulating application batteries.