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- Title
Integrated Photoelectrochemical Solar Energy Conversion and Organic Redox Flow Battery Devices.
- Authors
Li, Wenjie; Fu, Hui ‐ Chun; Li, Linsen; Cabán ‐ Acevedo, Miguel; He, Jr ‐ Hau; Jin, Song
- 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.
- Subjects
FLOW batteries; PHOTOELECTROCHEMICAL cells; SOLAR energy conversion; OXIDATION-reduction reaction; SULFONIC acids; ANTHRAQUINONE derivatives
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 42, p13298
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201606986