Recent progress of dendrite‐free stable zinc anodes for advanced zinc‐based rechargeable batteries: Fundamentals, challenges, and perspectives

Zinc-based batteries are a very promising class of next-generation electrochemical energy storage systems, with high safety, eco-friendliness, abundant resources, and the absence rigorous manufacturing conditions. However, practical applications zinc-based rechargeable impeded by low Coulombic efficiency, inferior cyclability, poor rate capability, due to instability zinc anode. Herein, effective strategies for dendrite-free anode symmetrically reviewed, especially highlighting specific mechanisms, delicate design electrode current collectors, controlled electrode|electrolyte interface, ameliorative electrolytes, advanced separators design. First, particular mechanisms dendrites formation associated fundamentals stable Zn metal anodes presented elaborately. Then, recent key prevention hydrogen evolution reaction suppression categorized, discussed, analyzed in detail view electrodes, separators. Finally, challenging perspectives major directions briefly discussed further industrialization commercialization batteries.