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Review evaluates reaction mechanisms and optimization strategies for manganese cathodes in aqueous zinc-ion batteries, highlighting pathways to improve energy storage performance.
Aqueous zinc‐ion batteries (AZIBs) have emerged as a promising energy storage solution due to their eco‐friendly aqueous electrolytes, high theoretical capacity of zinc anodes, and abundant global zinc reserves. Among the reported cathode materials, manganese‐based cathodes are widely used in AZIBs due to their high theoretical capacity and low cost. However, practical applications of manganese‐based cathodes face several challenges, including structural instability, low electrical conductivity, and slow diffusion kinetics. This review begins by exploring the crystalline structures of manganese‐based compounds commonly used in AZIBs, systematically analyzing their reaction mechanisms. Furthermore, it examines the main challenges currently encountered by manganese‐based compounds in AZIBs. Addressing these challenges, this review summarizes corresponding optimization strategies, providing valuable references and insights for the development and application of manganese‐based cathodes in AZIBs.
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Zhang et al. (2025) studied this question.
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