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Updated: May 15, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

Membranes for Lithium Recovery From Conventional and Unconventional Sources.

Nurshaun Sreedhar^1,2, Rebecca Lee^2,3, Sreejith Appukuttan²

¹Maseeh Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas 78712, United States.

ACS ES&T Engineering

|May 14, 2026

Summary

Membrane technologies offer versatile solutions for critical lithium recovery from diverse aqueous sources. This study comprehensively analyzes their application across all stages, highlighting potential and challenges for meeting rising global demand.

Keywords:

Critical mineral recovery Direct lithium extraction (DLE)Lithium recovery Membrane technologies Selective ion separation

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Area of Science:

Materials Science
Chemical Engineering
Environmental Science

Background:

Lithium is a critical mineral with rapidly increasing demand across various applications.
Conventional direct lithium extraction (DLE) methods face challenges in efficiency and selectivity.
Aqueous sources like brines and battery waste are key targets for sustainable lithium recovery.

Purpose of the Study:

To comprehensively analyze the application of membrane technologies in lithium recovery.
To evaluate the performance and potential of membranes at every stage of the lithium extraction process.
To assess the feasibility, challenges, and impacts of membrane-integrated DLE processes.

Main Methods:

Literature review and analysis of membrane applications for lithium recovery.
Evaluation of performance metrics for critical lithium separations (Li/Mg, Li/Na).
Development of hypothetical membrane-integrated process trains for different lithium sources.
Critical consideration of energy and water impacts of membrane-based DLE.

Main Results:

Membrane technologies show significant potential for pretreatment, impurity removal, and lithium separation.
Specific membrane processes are effective for lithium/magnesium and lithium/sodium separation.
Hypothetical process designs demonstrate the feasibility of integrating membranes for various lithium sources.
Membrane-integrated DLE can offer improved performance and reduced environmental impact compared to conventional methods.

Conclusions:

Membrane technologies are versatile tools with broad applicability across the entire lithium recovery value chain.
Further research and development are needed to optimize membrane processes for specific lithium sources and separation challenges.
Integrated membrane systems hold substantial promise for efficient, selective, and sustainable critical mineral recovery.