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Efforts towards Practical and Sustainable Li/Na‐Air Batteries
Chinese Journal of Chemistry ( IF 5.5 ) Pub Date : 2020-08-23 , DOI: 10.1002/cjoc.202000408
Kai Chen 1, 2 , Gang Huang 3 , Xin‐Bo Zhang 1, 2
Affiliation  

The Li‐O2 batteries have attracted much attention due to their parallel theoretical energy density to gasoline. In the past 20 years, understanding and knowledge in Li‐O2 battery have greatly deepened in elucidating the relationship between structure and performance. Our group has been focusing on the cathode engineering and anode protection strategy development in the past years, trying to make full use of the superiority of metal‐air batteries towards applications. In this review, we aim to retrospect our efforts in developing practical, sustainable metal‐air batteries. We will first introduce the basic working principle of Li‐O2 batteries and our progresses in Li‐O2 batteries with typical cathode designs and anode protection strategies, which have together promoted the large capacity, long life and low charge overpotential. We emphasize the designing art of carbon‐based cathodes in this part along with a short talk on all‐metal cathodes. The following part is our research in Na‐O2 batteries including both cathode and anode optimizations. The differences between Li‐O2 and Na‐O2 batteries are also briefly discussed. Subsequently, our proof‐of‐concept work on Li‐N2 battery, a new energy storage system and chemistry, is discussed with detailed information on the discharge product identification. Finally, we summarize our designed models and prototypes of flexible metal‐air batteries that are promising to be used in flexible devices to deliver more power.

中文翻译:

努力开发实用和可持续的锂/钠空气电池

Li-O 2电池由于与汽油平行的理论能量密度而备受关注。在过去的20年中,在阐明结构与性能之间的关系方面,对Li-O 2电池的理解和知识已大大加深。在过去的几年中,我们的团队一直专注于阴极工程和阳极保护策略的开发,试图充分利用金属空气电池在应用中的优势。在这篇评论中,我们旨在回顾我们在开发实用,可持续的金属空气电池方面所做的努力。我们将首先介绍Li-O 2电池的基本工作原理以及我们在Li-O 2中的进展。具有典型阴极设计和阳极保护策略的电池,共同促进了大容量,长寿命和低电荷过电位的发展。在这一部分中,我们将重点介绍碳基阴极的设计艺术,并简短介绍全金属阴极。以下部分是我们对Na‐O 2电池的研究,包括阴极和阳极优化。还简要讨论了Li-O 2和Na-O 2电池之间的区别。随后,我们就Li-N 2进行了概念验证讨论了电池,一种新的储能系统和化学物质,并提供了有关放电产物识别的详细信息。最后,我们总结了挠性金属空气电池的设计模型和原型,它们有望用于挠性设备中以提供更大的功率。
更新日期:2020-08-23
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