File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

김영식

Kim, Youngsik
YK Research
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Investigating the influence of catholyte salinity on seawater battery desalination

Author(s)
Park, SanghunLigaray, MayzoneeKim, YoungsikChon, KangminSon, MoonCho, Kyung Hwa
Issued Date
2021-06
DOI
10.1016/j.desal.2021.115018
URI
https://scholarworks.unist.ac.kr/handle/201301/52645
Fulltext
http://www.sciencedirect.com.ssl.openlink.unist.ac.kr:8080/science/article/pii/S0011916421000898
Citation
DESALINATION, v.506, pp.115018
Abstract
The seawater battery (SWB) is a promising desalination technology that utilizes abundant sodium ions as an energy storage medium. Recently, the alternative desalination system, seawater battery desalination (SWB-D), was developed by placing an SWB next to the desalination compartment. This SWB-D system can desalt water while charging the SWB next to it. However, only a fixed catholyte solution has been investigated, although the catholytes impact the overall SWB-D performance. Therefore, we evaluated the effect of different catholytes on the desalination performance. High-saline reverse osmosis (RO) concentrate or brackish water exhibited excellent salt removal capability (>85.3% of sodium and >76.6% of chloride ions) with relatively short operation times (36.4 h for RO concentrate and 39.5 h for brackish water) upon charging, whereas the relatively low-saline river water showed the longest operation time (81.0 h), implying that river water should be excluded as a potential catholyte. The amount of desalinated water was marginally reduced due to osmosis through the anion exchange membrane; however, the amount of treated salt was >82.9% even after the reduction in water volume. These findings suggest that the catholyte with a resistance of >0.041 k??cm can be ideal for the SWB-D.
Publisher
ELSEVIER
ISSN
0011-9164
Keyword (Author)
Seawater batteryDesalinationCatholyteElectrochemical cell

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.