CIESC Journal ›› 2024, Vol. 75 ›› Issue (5): 1750-1764.DOI: 10.11949/0438-1157.20240091

• Reviews and monographs • Previous Articles     Next Articles

Research progress on design strategies and reaction mechanisms of photo-assisted Li-CO2 battery catalysts

Tingting ZHAO1(), Lixiang YAN1, Fuli TANG2, Minzhi XIAO1, Ye TAN1, Liubin SONG1(), Zhongliang XIAO1(), Lingjun LI3   

  1. 1.School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China
    2.Testing Technology Company of Changsha Research Institute of Mining and Metallurgy Co. , Ltd. , Changsha 410006, Hunan, China
    3.School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China
  • Received:2024-01-19 Revised:2024-03-03 Online:2024-06-25 Published:2024-05-25
  • Contact: Liubin SONG, Zhongliang XIAO

光辅助锂-二氧化碳电池催化剂的设计策略与反应机理研究进展

赵亭亭1(), 鄢立祥1, 唐福利2, 肖敏之1, 谭烨1, 宋刘斌1(), 肖忠良1(), 李灵均3   

  1. 1.长沙理工大学化学化工学院,湖南 长沙 410114
    2.长沙矿冶院检测技术有限责任公司,湖南 长沙 410006
    3.长沙理工大学材料科学与工程学院,湖南 长沙 410114
  • 通讯作者: 宋刘斌,肖忠良
  • 作者简介:赵亭亭(1994—),女,博士,讲师,zhaott_468@163.com
  • 基金资助:
    国家自然科学基金项目(21501015);湖南省自然科学基金项目(2022JJ30604);电力与交通材料保护湖南省重点实验室项目(2022CL01)

Abstract:

Photo-assisted Li-CO2 batteries have the characteristics of high theoretical energy density and environmental friendliness, which are important development direction for the next generation of high specific energy battery systems. However, the CO2 reduction/evolution reaction at the positive electrode has problems such as slow kinetics, which limits the development of Li-CO2 batteries. Photo-assisted technology utilizes the photocatalyst loaded on the positive electrode to absorb light energy, generate electrons and holes to drive chemical reactions, which is beneficial for improving battery performance. This review summarizes the photochemical principles and charge-discharge reaction mechanism of photo-assisted Li-CO2 batteries, lists design strategies and specific examples of cathode photocatalysts. The impact of photocatalyst structure on battery performance is further understood through in-depth exploration of the photocatalytic reaction mechanism of Li-CO2 batteries. In addition, the basic understanding of photo-assisted Li-CO2 batteries, current challenges, and prospects for the development of photocatalysts were discussed, providing an important reference for technical research in the field of new energy materials and helps to promote the practical process of Li-CO2 batteries.

Key words: Li-CO2 batteries, cathode photocatalyst, reaction mechanism, design strategy

摘要:

光辅助Li-CO2电池具有理论能量密度高、环境友好等特点,是下一代高比能电池系统的重要发展方向。然而,正极处CO2还原/析出反应存在动力学缓慢等问题,限制了Li-CO2电池发展。光辅助技术利用正极负载的光催化剂吸收光能,产生电子和空穴以驱动化学反应,有利于提升电池性能。本文阐述了光辅助Li-CO2电池的光化学原理及充放电反应机制,详细列举了正极光催化剂的设计策略及具体实例。通过深入探讨Li-CO2电池的光催化反应机理,进一步理解了光催化剂结构对电池性能的影响机制。此外,还讨论了光辅助Li-CO2电池的基本认识、当前面临的挑战以及对光催化剂发展前景的展望,可为新能源材料领域的技术研究提供参考,有助于推动Li-CO2电池的实用化进程。

关键词: Li-CO2电池, 正极光催化剂, 反应机理, 设计策略

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