Integrated Photoelectrochemical Solar Energy Conversion and Organic Redox Flow Battery Devices

Wenjie Li, Hui-Chun Fu, Linsen Li, Miguel Cabán-Acevedo, Jr-Hau He, Song Jin

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

Building on regenerative photoelectrochemical solar cells and emerging electrochemical redox flow batteries (RFBs), more efficient, scalable, compact, and cost-effective hybrid energy conversion and storage devices could be realized. An integrated photoelectrochemical solar energy conversion and electrochemical storage device is developed by integrating regenerative silicon solar cells and 9,10-anthraquinone-2,7-disulfonic acid (AQDS)/1,2-benzoquinone-3,5-disulfonic acid (BQDS) RFBs. The device can be directly charged by solar light without external bias, and discharged like normal RFBs with an energy storage density of 1.15 Wh L−1 and a solar-to-output electricity efficiency (SOEE) of 1.7 % over many cycles. The concept exploits a previously undeveloped design connecting two major energy technologies and promises a general approach for storing solar energy electrochemically with high theoretical storage capacity and efficiency.
Original languageEnglish (US)
Pages (from-to)13104-13108
Number of pages5
JournalAngewandte Chemie International Edition
Volume55
Issue number42
DOIs
StatePublished - Oct 6 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This research is supported by UW-Madison and also partially supported by the NSF Grant DMR-1508558. H.-C.F. and J.-H.H. are supported by the KAUST baseline fund for design and fabrication of Si solar cells.

Fingerprint

Dive into the research topics of 'Integrated Photoelectrochemical Solar Energy Conversion and Organic Redox Flow Battery Devices'. Together they form a unique fingerprint.

Cite this