Aqueous ammonium ion batteries (AIBs) pose the advantages of high safety, low cost, and high efficiency, capturing substantial research interest. The intrinsic chemical properties of NH promote the formation of hydrogen bonds with other constituents in AIBs, critically influencing the processes of NH transfer, storage, and diffusion. This review delves into the pivotal role of hydrogen bonding chemistry in AIBs. Firstly, the principles of hydrogen bond are elucidated as the dominant chemical interaction governing NH dynamics in AIBs. Subsequently, a detailed analysis is conducted on the impacts of hydrogen bonds in both electrolytes and electrode materials. Furthermore, the practical applications of hydrogen bonding chemistry within the context of AIBs are assessed. Finally, strategic insights and future research directions are proposed to harness hydrogen bonding effects for optimizing AIB performance. This review aims to define the mechanisms and impacts of hydrogen bonds in AIBs, providing robust strategies to enhance electrochemical performance, deepen the understanding of energy storage mechanisms, and guide the future advancement of AIBs technology.
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