Proton-Blocking Anion-Exchange Membranes for Efficient Lithium Hydroxide Recovery by Bipolar Membrane Electrodialysis
Ji-Hyeon Lee, Moon-Sung Kang · 2025
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Description
Recovering lithium hydroxide cleanly matters for batteries, and one membrane step leaks protons that cut its efficiency. Ji-Hyeon Lee and Moon-Sung Kang built a layered membrane that blocks protons while keeping current flowing. The blocking skin mixes strong and weak base groups on a standard membrane. Three linker molecules of different lengths tuned the skin. The longest linker gave high flow but weak blocking, the shortest the reverse.
Blending the two linkers at the best ratio beat the commercial blocking membrane on both counts. In the full process the new membrane raised energy and current efficiency. Membrane tuning of this kind could trim the cost of lithium recovery from waste streams.
Catalog record
| CREATOR | Ji-Hyeon Lee, Moon-Sung Kang |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 36 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |