High-performance solar flow battery powered by a perovskite/silicon tandem solar cell
High-performance solar flow battery powered by a perovskite/silicon tandem solar cell
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DOI：
10.1038/s41563-020-0720-x
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发表时间：
2020-07-13
期刊：
影响因子：
41.2
通讯作者：
Jin, Song
中科院分区：
文献类型：
--
作者：
Li, Wenjie;Zheng, Jianghui;Jin, Song
农村地区电气化的快速普及要求开发有竞争力的分散方法。低成本、紧凑型集成太阳能液流电池是一种有前景的解决方案；然而，在这些系统中同时获得高能量转换性能和长器件寿命一直具有挑战性。在这里，我们使用高效钙钛矿/硅串联太阳能电池和基于强大的BTMAP-Vi/N-Me-TEMPO氧化还原对的氧化还原液流电池来实现高性能且稳定的太阳能液流电池装置。数值分析方法可以合理设计两个组件，实现最佳电压匹配。这些努力使得太阳能液流电池的太阳能发电效率达到20.1%，并提高了设备寿命、太阳能转换利用率和产能利用率。这里提出的概念设计策略还提出了集成太阳能转换和存储系统的一般未来优化方法。氧化还原电对的电压匹配和合理设计可实现与钙钛矿/硅串联太阳能电池集成的氧化还原液流电池的高太阳能输出电效率并延长使用寿命。
The fast penetration of electrification in rural areas calls for the development of competitive decentralized approaches. A promising solution is represented by low-cost and compact integrated solar flow batteries; however, obtaining high energy conversion performance and long device lifetime simultaneously in these systems has been challenging. Here, we use high-efficiency perovskite/silicon tandem solar cells and redox flow batteries based on robust BTMAP-Vi/N-Me-TEMPO redox couples to realize a high-performance and stable solar flow battery device. Numerical analysis methods enable the rational design of both components, achieving an optimal voltage match. These efforts led to a solar-to-output electricity efficiency of 20.1% for solar flow batteries, as well as improved device lifetime, solar power conversion utilization ratio and capacity utilization rate. The conceptual design strategy presented here also suggests general future optimization approaches for integrated solar energy conversion and storage systems.Voltage matching and rational design of redox couples enable high solar-to-output electricity efficiency and extended operational lifetime in a redox flow battery integrated with a perovskite/silicon tandem solar cell.