A solar rechargeable flow battery based on electroactive organic redox couples

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Zhang, Wenhua^1,3 ; Liu, Ping^2 ; Zhang, Xingwang^1,3

Nanchang Institute of Technology, Nanchang, China^1

State Grid of Jiangxi Electric Power Research Institute, Nanchang, China^2

Nanchang Institute of Technology, Jiangxi Province Key Laboratory of Precision Drive and Control, Nanchang, China^3

关键词: 2 ,2 ,6 ,6-tetramethyl-1-piperidinyloxy;    Chemical storage;    Dye-sensitized tio2 solar cells;    Electrical conversion;    Electrochemical discharge;    Energy storage density;    Light illumination;    Organic redox couples;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/3/032068/pdf
DOI  :  10.1088/1757-899X/452/3/032068

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

An integrated photo-electrochemical solar energy conversion and storage device is developed by a dye sensitized TiO2 solar cells and 2, 2, 6, 6-tetramethyl-1-piperidinyloxy (TEMPO) / 1, 4-Benzoquinone (BQ) redox flow batteries. The device can be directly charged by solar light without external bias, and discharged like normal RFBs with an energy storage density of 3.5 mAhg-1 over many cycles. The proposed device demonstrates a rapid photo-charge at light illumination and a stable electrochemical discharge in the dark, realizing an in situ photo-to-chemical-to-electrical conversion and photo-to-chemical storage.