14.1% Efficient Monolithically Integrated Solar Flow Battery

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Wenjie Li
  • Hui-Chun Fu
  • Yuzhou Zhao
  • Jr-Hau He
  • Song Jin

Detail(s)

Original languageEnglish
Pages (from-to)2644-2657
Journal / PublicationChem
Volume4
Issue number11
Online published27 Sep 2018
Publication statusPublished - 8 Nov 2018
Externally publishedYes

Abstract

Challenges posed by the intermittency of solar energy source necessitate the integration of solar energy conversion with scalable energy storage systems. The monolithic integration of photoelectrochemical solar energy conversion and electrochemical energy storage offers an efficient and compact approach toward practical solar energy utilization. Here, we present the design principles for and the demonstration of a highly efficient integrated solar flow battery (SFB) device with a record solar-to-output electricity efficiency of 14.1%. Such SFB devices can be configured to perform all the requisite functions from solar energy harvest to electricity redelivery without external bias. Capitalizing on high-efficiency and high-photovoltage tandem III-V photoelectrodes that are properly matched with high-cell-voltage redox flow batteries and carefully designed flow field architecture, we reveal the general design principles for efficient SFBs. These results will enable a highly efficient approach for practical off-grid solar utilization and electrification.

Citation Format(s)

14.1% Efficient Monolithically Integrated Solar Flow Battery. / Li, Wenjie; Fu, Hui-Chun; Zhao, Yuzhou; He, Jr-Hau; Jin, Song.

In: Chem, Vol. 4, No. 11, 08.11.2018, p. 2644-2657.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review