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High-stable all-iron redox flow battery with innovative anolyte based on steric hindrance regulation.
Yang, Jiahui; Wei, Wei; Zhou, Chengxi; Yan, Hui; Che, Hangxin; Hao, Leiduan; Tan, Xinyi; Robertson, Alex W; Wu, Tai-Sing; Soo, Yun-Liang; Tang, Ao; Sun, Zhenyu.
Afiliación
  • Yang J; Beijing University of Chemical Technology, State Key Laboratory of Organic-Inorganic Composites, CHINA.
  • Wei W; Institute of Metal Research Chinese Academy of Sciences, Institute of Metal Research Chinese Academy of Sciences, CHINA.
  • Zhou C; Beijing University of Chemical Technology, State Key Laboratory of Organic-Inorganic Composites, CHINA.
  • Yan H; Institute of Metal Research Chinese Academy of Sciences, Institute of Metal Research Chinese Academy of Sciences, CHINA.
  • Che H; Beijing University of Chemical Technology, State Key Laboratory of Organic-Inorganic Composites, CHINA.
  • Hao L; Beijing University of Chemical Technology, State Key Laboratory of Organic-Inorganic Composites, CHINA.
  • Tan X; Beijing Institute of Technology, Beijing Key Laboratory of Environmental Science and Engineering, CHINA.
  • Robertson AW; University of Warwick, Department of Physics, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.
  • Wu TS; National Synchrotron Radiation Research Center, National Synchrotron Radiation Research Center, TAIWAN.
  • Soo YL; National Tsing Hua University, Department of Physics, TAIWAN.
  • Tang A; Institute of Metal Research Chinese Academy of Sciences, Institute of Metal Research Chinese Academy of Sciences, CHINA.
  • Sun Z; Beijing University of Chemical Technology, Department of Chemical Engineering, North Third Ring Road 15, Chaoyang District, Beijing, China, 100029, Beijing, CHINA.
Angew Chem Int Ed Engl ; : e202414452, 2024 Aug 28.
Article en En | MEDLINE | ID: mdl-39205492
ABSTRACT
All-soluble all-iron redox flow batteries (AIRFBs) are an innovative energy storage technology that offer significant financial benefits. Stable and affordable redox-active materials are essential for the commercialization of AIRFBs, yet the battery stability must be significantly improved to achieve practical value. Herein, ferrous complexes combined with the triisopropanolamine (TIPA) ligand are identified as promising anolytes to extend battery life by reducing cross-contamination due to a pronounced steric hindrance effect. The coordination structure and failure mechanism of our Fe-TIPA complexes were determined by molecular dynamics simulation and spectroscopic experiments. By coupling with [Fe(CN)6]4 -/3- , Fe-TIPA/Fe-CN AIRFBs retained excellent stability exceeding 1831 cycles at 80 mA·cm -2 , yielding an energy efficiency of ~80% and maintaining a steady discharge capacity. Moreover, the all-soluble electrolyte was tested in an industrial-scale Fe-TIPA/Fe-CN AIRFB prototype energy storage system, where an energy efficiency of 81.3% was attained. Given the abundance of iron resources, we model the TIPA AIRFB electrolyte cost to be as low as 32.37 $/kWh, which is significantly cheaper than the current commercial level. This work demonstrates that steric hindrance is an effective measure to extended battery life, facilitating the commercial development of affordable flow batteries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania