Recent progress in oxygen electrocatalysts for aprotic lithium-oxygen batteries

IF 23.8 Q1 CHEMISTRY, MULTIDISCIPLINARY EnergyChem Pub Date : 2025-03-14 DOI:10.1016/j.enchem.2025.100150

Xinxiang Wang , Kai Wan , Haoyang Xu , Guilei Tian , Sheng Liu , Fengxia Fan , Pengfei Liu , Chenrui Zeng , Chuan Wang , Shuhan Wang , Xudong Yu , Chaozhu Shu , Zhenxing Liang

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Abstract

Lithium-oxygen (Li-O₂) battery has gained wide interests as one potential energy storage solution for renewable energy due to its ultrahigh specific energy (∼3500 Wh kg^-1). Currently, its development has suffered from technical issues including poor rate capability, low round-trip efficiency and inferior cycling stability, which stem from the sluggish kinetics of oxygen reduction reaction and oxygen evolution reaction, irreversible formation/decomposition behavior of Li₂O₂ and parasitic reaction during discharge and charge processes. Thus, developing highly efficient electrocatalysts towards oxygen electrode reactions is urgently needed. In this review, we firstly discuss the basic structure and fundamental chemistry of Li-O₂ batteries. Key performance indexes of electrocatalyst are then highlighted and the effects of these key performance indexes of electrocatalysts on the surface and interface chemistry of oxygen electrode reactions in Li-O₂ battery are extensively clarified. Accordingly, the structure-performance relationships of different kinds of electrocatalysts are comprehensively discussed for non-aqueous Li-O₂ battery. Finally, we conclude with a summary on the challenges for achieving high-efficiency electrocatalysts and an outlook on pointing out the promising approaches for developing advanced oxygen electrocatalyst for Li-O₂ battery.

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非质子锂氧电池氧电催化剂研究进展

锂氧（Li-O2）电池由于其超高比能（~ 3500 Wh kg-1），作为一种潜在的可再生能源储能解决方案，受到了广泛的关注。目前，由于氧还原反应和析氧反应动力学缓慢，Li2O2的不可逆形成/分解行为以及放电和充电过程中的寄生反应等原因，其发展存在速率能力差、往返效率低、循环稳定性低等技术问题。因此，迫切需要开发高效的氧电极反应电催化剂。本文首先介绍了锂氧电池的基本结构和基本化学性质。重点介绍了电催化剂的关键性能指标，并广泛阐明了这些关键性能指标对锂氧电池氧电极反应表面和界面化学的影响。在此基础上，对不同电催化剂在非水锂氧电池中的结构-性能关系进行了全面的讨论。最后，我们总结了实现高效电催化剂所面临的挑战，并对锂氧电池先进氧电催化剂的发展前景进行了展望。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

EnergyChem Multiple-

CiteScore

40.80

自引率

2.80%

发文量

审稿时长

40 days

期刊介绍： EnergyChem, a reputable journal, focuses on publishing high-quality research and review articles within the realm of chemistry, chemical engineering, and materials science with a specific emphasis on energy applications. The priority areas covered by the journal include:Solar energy,Energy harvesting devices,Fuel cells,Hydrogen energy,Bioenergy and biofuels,Batteries,Supercapacitors,Electrocatalysis and photocatalysis,Energy storage and energy conversion,Carbon capture and storage