Symmetrical capacitive deionization battery enabling dual capture of fluoride and copper ions

Qisheng Huang; Meiying Du; Lei Huang; Jia Yan; Xingtong Liang; Shaojian Xie; Hongguo Zhang; Meng Li; Shaocheng Chen; Hongbo Zeng

doi:10.1039/D5CC06728F

Symmetrical capacitive deionization battery enabling dual capture of fluoride and copper ions

Qisheng Huang,†^a Meiying Du,†^a Lei Huang,

*^ab Jia Yan,^a Xingtong Liang,^a Shaojian Xie,^a Hongguo Zhang,

*^ac Meng Li,

^a Shaocheng Chen^a and Hongbo Zeng

*^b

Author affiliations

* Corresponding authors

^a School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
E-mail: huanglei@gzhu.edu.cn, hgzhang@gzhu.edu.cn

^b Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
E-mail: hongbo.zeng@ualberta.ca

^c Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou 510006, China

Abstract

This work reports a capacitive deionization battery using lithium iron phosphate (LiFePO₄) electrodes. A ‘Deintercalation–Adsorption–Desorption–Intercalation’ (DADI) cycle achieves over 95% removal capacity retention after 20 cycles, offering new insights into electrode materials and mechanisms for capacitive deionization technology.

Chemical Communications

Symmetrical capacitive deionization battery enabling dual capture of fluoride and copper ions

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Symmetrical capacitive deionization battery enabling dual capture of fluoride and copper ions

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