
@article {4065,
	title = {Investigating the influence of catholyte salinity on seawater battery desalination},
	journal = {Desalination},
	volume = {506},
	year = {2021},
	pages = {115018},
	abstract = {The seawater\&nbsp;battery\&nbsp;(SWB) is a promising\&nbsp;desalination\&nbsp;technology that utilizes abundant\&nbsp;sodium ions\&nbsp;as an energy storage medium. Recently, the alternative\&nbsp;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\&nbsp;catholytes\&nbsp;impact the overall SWB-D performance. Therefore, we evaluated the effect of different catholytes on the desalination performance. High-saline\&nbsp;reverse osmosis\&nbsp;(RO) concentrate or brackish water exhibited excellent\&nbsp;salt removal\&nbsp;capability (\&gt;85.3\% of sodium and \&gt;76.6\% of chloride ions) with relatively short operation times (36.4\&nbsp;h for RO concentrate and 39.5\&nbsp;h for brackish water) upon charging, whereas the relatively low-saline river water showed the longest operation time (81.0\&nbsp;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\&nbsp;anion exchange membrane; however, the amount of treated salt was \&gt;82.9\% even after the reduction in water volume. These findings suggest that the catholyte with a resistance of \&gt;0.041\&nbsp;kΩ{\textperiodcentered}cm can be ideal for the SWB-D.},
	url = {https://doi.org/10.1016/j.desal.2021.115018},
	author = {Sanghun Park and Mayzonee Ligaray and Youngsik Kim and Kangmin Chon and Moon Son and Kyung Hwa Cho}
}
