Polystyrene-supported neutral lithium receptor for the recovery of high-purity LiPF6 from simulated degraded electrolyte

Sheng-Yin Huang; Hu Wang; Hugo Celio; Niveen M. Khashab; Zachariah A. Page; Jonathan L. Sessler

doi:10.1039/D2TA03220A

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Polystyrene-supported neutral lithium receptor for the recovery of high-purity LiPF₆ from simulated degraded electrolyte†

Sheng-Yin Huang,

^a Hu Wang,

^a Hugo Celio,

^b Niveen M. Khashab,

^c Zachariah A. Page

*^a and Jonathan L. Sessler

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, The University of Texas at Austin, Austin, TX 78712-1224, USA
E-mail: sessler@cm.utexas.edu

^b Texas Materials Institute, The University of Texas at Austin, Engineering Education and Research Center, 2501 Speedway, Austin, TX 78712, USA
E-mail: hcelio@utexas.edu

^c Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
E-mail: khashab@kaust.edu.sa

Abstract

An immobilized receptor selectively sequesters Li⁺ and PF₆⁻ from aprotic solutions. Subsequent suspension in methanol serves to trigger the release of LiPF₆. The recovered LiPF₆ has ≥99.5% purity and no appreciable trace metal content as determined by qNMR spectroscopy and ICP-MS analysis.

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Article information

DOI: https://doi.org/10.1039/D2TA03220A
Article type: Communication
Submitted: 21 Apr 2022
Accepted: 15 Jun 2022
First published: 28 Jun 2022

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J. Mater. Chem. A, 2022,10, 14788-14794

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Polystyrene-supported neutral lithium receptor for the recovery of high-purity LiPF₆ from simulated degraded electrolyte

S. Huang, H. Wang, H. Celio, N. M. Khashab, Z. A. Page and J. L. Sessler, J. Mater. Chem. A, 2022, 10, 14788 DOI: 10.1039/D2TA03220A

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Journal of Materials Chemistry A