Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology Control

Abstract Extracting lithium resources from seawater and brine can promote the development of the new energy materials industry. The electrochemical method is green and efficient. Iron phosphate (FePO4) crystal, with its 1D ion channel, holds significant potential as a primary lithium extraction elec...

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Main Authors: Xiaoyu Zhao, Shuo Yang, Xiuli Song, Yushuang Wang, Hui Zhang, Muhan Li, Yanfei Wang
Format: Article
Language:English
Published: Wiley 2024-11-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202405176
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author Xiaoyu Zhao
Shuo Yang
Xiuli Song
Yushuang Wang
Hui Zhang
Muhan Li
Yanfei Wang
author_facet Xiaoyu Zhao
Shuo Yang
Xiuli Song
Yushuang Wang
Hui Zhang
Muhan Li
Yanfei Wang
author_sort Xiaoyu Zhao
collection DOAJ
description Abstract Extracting lithium resources from seawater and brine can promote the development of the new energy materials industry. The electrochemical method is green and efficient. Iron phosphate (FePO4) crystal, with its 1D ion channel, holds significant potential as a primary lithium extraction electrode material. Li+ encounters a substantial concentration disadvantage in brines, and the co‐intercalation of Na+ diminishes Li+ selectivity. To address this issue, this work enhances the energy barrier for Na+ insertion through prelithiation strategies applied to the 1D channels of FePO4 crystal, thereby improving Li+ selectivity, and further investigating the prelithiation effect with particle size and morphology control. The results indicate that the Li(4C‐40%)FePO4// Activated carbon(AC) system enhances selectivity of lithium. The Li(4C‐40%)FePO4 with size diameter of 2500 nm demonstrates an energy consumption of 0.79 Wh mol−1 and a purity of 97.94% for lithium extraction at a unit lithium extraction of 5.93 mmol g−1 in simulated brine. Li(4C‐40%)FePO4‐nanoplates demonstrate the most optimal lithium extraction performance among the three morphologies due to their lamellar structure's short ion diffusion path in the [010] channel, favoring Li+ diffusion. The diffusion energy barriers of Li+ and Na+ are calculated using Density Functional Theory (DFT) before and after prelithiation, showing good agreement with experimental results.
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spelling doaj-art-fe1eae4aeb6a45ce94da1bcea2893fa12025-08-20T02:12:24ZengWileyAdvanced Science2198-38442024-11-011141n/an/a10.1002/advs.202405176Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology ControlXiaoyu Zhao0Shuo Yang1Xiuli Song2Yushuang Wang3Hui Zhang4Muhan Li5Yanfei Wang6State Key Laboratory of Biobased Fiber Manufacturing TechnologyTianjin University of Science and Technology Tianjin 300457 ChinaTianjin Key Laboratory of Brine Chemical Engineering and Resource Eco‐utilizationCollege of Chemical Engineering and Materials ScienceTianjin University of Science and Technology Tianjin 300457 ChinaTianjin Key Laboratory of Brine Chemical Engineering and Resource Eco‐utilizationCollege of Chemical Engineering and Materials ScienceTianjin University of Science and Technology Tianjin 300457 ChinaState Key Laboratory of Biobased Fiber Manufacturing TechnologyTianjin University of Science and Technology Tianjin 300457 ChinaState Key Laboratory of Biobased Fiber Manufacturing TechnologyTianjin University of Science and Technology Tianjin 300457 ChinaState Key Laboratory of Biobased Fiber Manufacturing TechnologyTianjin University of Science and Technology Tianjin 300457 ChinaTianjin Key Laboratory of Brine Chemical Engineering and Resource Eco‐utilizationCollege of Chemical Engineering and Materials ScienceTianjin University of Science and Technology Tianjin 300457 ChinaAbstract Extracting lithium resources from seawater and brine can promote the development of the new energy materials industry. The electrochemical method is green and efficient. Iron phosphate (FePO4) crystal, with its 1D ion channel, holds significant potential as a primary lithium extraction electrode material. Li+ encounters a substantial concentration disadvantage in brines, and the co‐intercalation of Na+ diminishes Li+ selectivity. To address this issue, this work enhances the energy barrier for Na+ insertion through prelithiation strategies applied to the 1D channels of FePO4 crystal, thereby improving Li+ selectivity, and further investigating the prelithiation effect with particle size and morphology control. The results indicate that the Li(4C‐40%)FePO4// Activated carbon(AC) system enhances selectivity of lithium. The Li(4C‐40%)FePO4 with size diameter of 2500 nm demonstrates an energy consumption of 0.79 Wh mol−1 and a purity of 97.94% for lithium extraction at a unit lithium extraction of 5.93 mmol g−1 in simulated brine. Li(4C‐40%)FePO4‐nanoplates demonstrate the most optimal lithium extraction performance among the three morphologies due to their lamellar structure's short ion diffusion path in the [010] channel, favoring Li+ diffusion. The diffusion energy barriers of Li+ and Na+ are calculated using Density Functional Theory (DFT) before and after prelithiation, showing good agreement with experimental results.https://doi.org/10.1002/advs.202405176electrochemical lithium extractioniron phosphatelow lithium sodium ratiomorphologyparticle sizesolid solution
spellingShingle Xiaoyu Zhao
Shuo Yang
Xiuli Song
Yushuang Wang
Hui Zhang
Muhan Li
Yanfei Wang
Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology Control
Advanced Science
electrochemical lithium extraction
iron phosphate
low lithium sodium ratio
morphology
particle size
solid solution
title Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology Control
title_full Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology Control
title_fullStr Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology Control
title_full_unstemmed Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology Control
title_short Enhanced Lithium Extraction from Brines: Prelithiation Effect of FePO4 with Size and Morphology Control
title_sort enhanced lithium extraction from brines prelithiation effect of fepo4 with size and morphology control
topic electrochemical lithium extraction
iron phosphate
low lithium sodium ratio
morphology
particle size
solid solution
url https://doi.org/10.1002/advs.202405176
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