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Redox Flow Battery for Continuous and Energy-Effective Lithium Recovery from Aqueous Solution

Title data

Wang, Lei ; Arnold, Stefanie ; Ren, Panyu ; Wang, Qingsong ; Jin, Jun ; Wen, Zhaoyin ; Presser, Volker:
Redox Flow Battery for Continuous and Energy-Effective Lithium Recovery from Aqueous Solution.
In: ACS Energy Letters. Vol. 7 (2022) Issue 10 . - pp. 3539-3544.
ISSN 2380-8195
DOI: https://doi.org/10.1021/acsenergylett.2c01746

Project information

Project title:
Project's official titleProject's id
Nachwuchsgruppe Lehrstuhl für Anorganische Aktivmaterialien electrochemischer Speicher Dr. Qingsong WangNo information

Abstract in another language

Lithium-ion batteries are the primary power source for electric vehicles and portable electronic devices, creating a massive demand to mine and extract lithium. So far, lithium extraction has focused on brine and geological deposits. Yet, access to the enormous amount of lithium (at low concentration) in the earth’s oceans and other aqueous media remains challenging. Electrodialysis with Li-selective ceramic membranes could effectively separate lithium from seawater but at a high energy cost. Reversible electrochemical processes, like redox flow batteries, can overcome the limitation of electrodialysis-based systems. Herein we propose a system combining Li-selective ceramic membranes and a simple redox flow electrolyte to accomplish continuous lithium recovery from seawater. The lithium-extraction redox flow battery (LE-RFB) extracts dissolved lithium with a purity of 93.5% from simulated seawater, corresponding to a high Li/Mg selectivity factor of about 500.000:1. Benefiting from a low operating voltage, 1 g of lithium is extracted with only 2.5 Wh of energy consumption.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Lehrstuhl Anorganische Aktivmaterialien für elektrochemische Energiespeicher
Research Institutions > Research Centres > Bayerisches Zentrum für Batterietechnik - BayBatt
Result of work at the UBT: No
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 540 Chemistry
Date Deposited: 02 Nov 2022 07:59
Last Modified: 02 Nov 2022 07:59
URI: https://eref.uni-bayreuth.de/id/eprint/72586