Chang Haiyang, Cong Shanshan, Wang Lei, Wang Cheng
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China.
Nanomaterials (Basel). 2022 Oct 30;12(21):3834. doi: 10.3390/nano12213834.
Zinc-air batteries (ZABs) have several advantages, including high energy density, cheap price and stable performances with good application prospects in the field of power batteries. The charging and discharging reactions for the air cathode of ZABs are the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), respectively, which play an important role in the whole performance of ZAB. Due to the cost and limited reserves of highly active precious metal catalysts, it is crucial to design alternative efficient and stable dual-functional non-precious metal catalysts. In the present review, we present a systematic summary of the recent progress in the use of transition metal-based electrocatalysts as alternatives to precious metals for the positive poles of ZAB air. Combined with state-of-the-art in situ characterization technologies, a deep understanding of the catalytic mechanism of OER/ORR provided unique insights into the precise design of excellent synthetic non-precious metal catalysts from the perspective of atomic structure. This review further shows that the hybrid electric battery is a new strategy to improve the efficiency of the hybrid electric battery, which could be available to alleviate the problem of resource shortage. Finally, the challenges and research trends for the future development of ZABs were clearly proposed.
锌空气电池（ZABs）具有若干优点，包括高能量密度、价格低廉以及性能稳定，在动力电池领域具有良好的应用前景。ZABs空气阴极的充电和放电反应分别是氧还原反应（ORR）和析氧反应（OER），它们在ZAB的整体性能中起着重要作用。由于高活性贵金属催化剂的成本和储量有限，设计替代的高效稳定双功能非贵金属催化剂至关重要。在本综述中，我们系统总结了使用过渡金属基电催化剂替代贵金属用于ZAB空气正极的最新进展。结合最先进的原位表征技术，对OER/ORR催化机理的深入理解从原子结构角度为精确设计优异的合成非贵金属催化剂提供了独特见解。本综述进一步表明，混合动力电池是提高混合动力电池效率的新策略，这有助于缓解资源短缺问题。最后，明确提出了ZAB未来发展面临的挑战和研究趋势。
