Research Progress for the Development of Li-Air Batteries: Addressing Parasitic Reactions Arising from Air Composition
Research Progress for the Development of Li-Air Batteries: Addressing Parasitic Reactions Arising from Air Composition
复制标题
锂空气电池的研究进展：解决空气成分引起的寄生反应
DOI：
10.1002/eem2.12008
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发表时间：
2018
影响因子：
15
通讯作者：
Haoshen Zhou
中科院分区：
文献类型：
--
作者：
Xueping Zhang;Xiaowei Mu;Sixie Yang;Pengfei Wang;Shaohua Guo;Min Han;Ping He;Haoshen Zhou
锂空气电池是一种极具吸引力的电能存储技术，特别是在远程电动汽车中，由于其理论比能量高。然而，在其实际实现之前，仍存在许多问题。在此，提出了锂空气电池中电极反应的唯一复杂性。讨论了影响非质子锂空气电池在环境空气中运行的电化学性能的关键因素。其中包括CO2/Li 2CO 3和H2O/LiOH的反应机理和途径、CO2还原/析出反应的催化剂以及Li阳极与空气组分之间的反应。如果这些挑战能够得到解决，锂空气电池将很快实现实际应用。锂-空气电池领域的一些热点问题应予以关注，如涉及多孔电极和锂金属阳极上气氛组分界面反应的基础机理研究，高效固体催化剂设计，以及发现合适的可溶性氧化还原介质。
Li‐air batteries are an extremely attractive technology for electrical energy storage, especially in long‐range electric vehicles, owing to their high theoretical specific energy. However, many issues still exist before their practical realization. Herein, the sole complexity of electrode reaction in Li‐air batteries is presented. And the critical components that influence the electrochemical performance of aprotic Li‐air batteries operating in ambient air are discussed. These include the mechanisms and pathways of CO2/Li2CO3and H2O/LiOH, catalysts of CO2reduction/evolution reactions, and reactions between the Li anode and air constituents. If these challenges can be solved, Li‐air batteries will soon be realized for practical application. Some hot topics in field of Li‐air batteries should be focused, such as the fundamental mechanism research referring to interfacial reactions of atmosphere components on porous electrode and Li metal anode, high‐efficiency solid catalyst design, and discovery of suitable soluble redox mediators.