Lv Jiangquan, Xie Jiafang, Mohamed Aya Gomaa Abdelkader, Zhang Xiang, Wang Yaobing
College of Electronics and Information Science & Organic Optoelectronics Engineering Research Center of Fujian's Universities, Fujian Jiangxia University, Fuzhou, Fujian 350108, P. R. China.
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
Chem Soc Rev. 2022 Feb 21;51(4):1511-1528. doi: 10.1039/d1cs00859e.
Advanced solar energy utilization technologies have been booming for carbon-neutral and renewable society development. Photovoltaic cells now hold the highest potential for widespread sustainable electricity production and photo(electro)catalytic cells could supply various chemicals. However, both of them require the connection of energy storage devices or matter to compensate for intermittent sunlight, suffering from complicated structures and external energy loss. Newly developed photoelectrochemical energy storage (PES) devices can effectively convert and store solar energy in one two-electrode battery, simplifying the configuration and decreasing the external energy loss. Based on PES materials, the PES devices could realize direct solar-to-electrochemical energy storage, which is fundamentally different from photo(electro)catalytic cells (solar-to-chemical energy conversion) and photovoltaic cells (solar-to-electricity energy conversion). This review summarizes a critically selected overview of advanced PES materials, the key to direct solar to electrochemical energy storage technology, with the focus on the research progress in PES processes and design principles. Based on the specific discussions of the performance metrics, the bottlenecks of PES devices, including low efficiency and deteriorative stability, are also discussed. Finally, several perspectives of potential strategies to overcome the bottlenecks and realize practical photoelectrochemical energy storage devices are presented.
先进的太阳能利用技术一直在蓬勃发展，以推动碳中和和可再生社会的发展。光伏电池目前在广泛的可持续电力生产方面具有最大潜力，而光（电）催化电池可以提供各种化学品。然而，它们都需要连接储能装置或物质来补偿间歇性阳光，存在结构复杂和外部能量损失的问题。新开发的光电化学储能（PES）装置可以在一个两电极电池中有效地转换和存储太阳能，简化了配置并减少了外部能量损失。基于PES材料，PES装置可以实现直接的太阳能到电化学储能，这与光（电）催化电池（太阳能到化学能转换）和光伏电池（太阳能到电能转换）有着根本的不同。本综述总结了对先进PES材料的严格筛选概述，这是直接太阳能到电化学储能技术的关键，重点关注PES过程的研究进展和设计原则。基于对性能指标的具体讨论，还讨论了PES装置的瓶颈，包括效率低和稳定性变差。最后，提出了克服这些瓶颈并实现实用光电化学储能装置的几种潜在策略的观点。
