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Issue 42, 2018
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A miniaturized solid salt reverse electrodialysis battery: a durable and fully ionic power source

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Abstract

A novel pump-free miniaturized reverse electrodialysis (RED) system was designed to provide lasting power transduced from salinity gradients, named solid salt RED (ssRED), and this quasi-battery uses a solid salt instead of electrolyte solution for streamlined usage. It is portable, flexible, comparable in size to a universal serial bus flash drive, and easily activated with a small amount of water. It maintains a constant ionic concentration gradient through precipitation reactions between a pair of different salts. This precipitation-assisted solid salt RED (PssRED) is an unprecedented ionic power source as it can generate steady electricity in the absence of a driving pump. The PssRED was successfully coupled with bipolar electrode (BPE) microchip sensors which require stable ionic electricity and a polyelectrolyte ionic diode to realize a fully ionic circuit. It is envisioned that the range of application could be expanded to supply electromotive force to various devices through an ionic charge flow.

Graphical abstract: A miniaturized solid salt reverse electrodialysis battery: a durable and fully ionic power source

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Publication details

The article was received on 04 Jul 2018, accepted on 27 Aug 2018 and first published on 27 Aug 2018


Article type: Edge Article
DOI: 10.1039/C8SC02954G
Citation: Chem. Sci., 2018,9, 8071-8076
  • Open access: Creative Commons BY-NC license
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    A miniaturized solid salt reverse electrodialysis battery: a durable and fully ionic power source

    S. Y. Yeon, J. Yun, S. Yoon, D. Lee, W. Jang, S. H. Han, C. M. Kang and T. D. Chung, Chem. Sci., 2018, 9, 8071
    DOI: 10.1039/C8SC02954G

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