J-WAFS at MIT’s Post

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Congratulations to J-WAFS director John Lienhard and team on their latest paper!

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NTU Research Fellow | MIT PhD

We're thrilled to share that our latest research on lithium recovery has just been published in Advanced Functional Materials! This work is a collaboration between academics at Massachusetts Institute of Technology and Northwestern University, alongside membrane engineers at Nitto Denko Corporation. In this paper, we introduce a novel polyelectrolyte-coated nanofiltration membrane designed to enhance lithium extraction from both salt-lake brines and battery leachates. The polyelectrolyte coating, enriched with a high density of ammonium groups, maintains high selectivity even in hypersaline feed solutions (250 g/L TDS). Our study, based on over 8000 ion rejection measurements, demonstrates the membrane's ability to reduce magnesium concentrations to 0.14% from salt-lake brine and elevate lithium purity to 98% from battery leachates, in a single filtration stage. The coated membrane, further, is amenable to end-to-end rolling manufacturing and is available commercially as a spiral-wound module (Nitto Denko PRO-XS1). The paper is available open access at: https://lnkd.in/eJY4F7bt #LithiumRecovery #Nanofiltration #SaltLakes #BatteryRecycling #AdvancedMaterials

Positively‐Coated Nanofiltration Membranes for Lithium Recovery from Battery Leachates and Salt‐Lakes: Ion Transport Fundamentals and Module Performance

Positively‐Coated Nanofiltration Membranes for Lithium Recovery from Battery Leachates and Salt‐Lakes: Ion Transport Fundamentals and Module Performance

onlinelibrary.wiley.com

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