Alkaline zinc‐air batteries (ZABs) are recognized as a promising candidate for next generation of safe battery systems, owing to their inherent advantages. However, the performance of traditional ZABs is constrained by a lower theoretical voltage of 1.65 V, presenting a significant challenge in enhancing their practical application. This paper demonstrates a prototype of acid‐alkaline hybrid quasi‐solid‐state zinc‐air battery (HSZAB), featuring a unique design in both a new acidic gel electrolyte and battery structure. Our approach involves regulating the electrolyte pH and ionic conductivity to achieve an enhanced theoretical voltage, resulting in an open circuit voltage of up to 2.0 V. Additionally, the HSZAB demonstrates substantially improved peak power density (417 mW cm‐², five times higher than the conventional alkaline ZABs) and increased energy efficiency (from 60% to 82%). This finding underscores the promising prospects of high voltage zinc‐air batteries, offering a substantial step forward in the field of energy storage systems.

中文翻译：

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准固体锌空气电池的高压设计


碱性锌空气电池 （ZAB） 由于其固有的优势，被认为是下一代安全电池系统的有前途的候选者。然而，传统 ZAB 的性能受到 1.65 V 的较低理论电压的限制，对增强其实际应用提出了重大挑战。本文展示了酸碱混合准固态锌空气电池 （HSZAB） 的原型，该电池在新型酸性凝胶电解质和电池结构方面均具有独特的设计。我们的方法包括调节电解质 pH 值和离子电导率，以实现增强的理论电压，从而产生高达 2.0 V 的开路电压。此外，HSZAB 还显著提高了峰值功率密度（417 mW cm‐²，是传统碱性 ZAB 的五倍）和能源效率（从 60% 提高到 82%）。这一发现突显了高压锌空气电池的前景广阔，为储能系统领域向前迈进了一大步。