Ecofriendly, Highly Selective Lithium Extraction by Redox-Mediated Electrodialysis
Rongxuan Xie, Danyi Sun, Jinyao Tang, Xiaochen Shen, Parsa Pishva, Yanlin Zhu, Kevin Huang, Zhenmeng Peng
Abstract
High Resolution Image Download MS PowerPoint Slide The rapid proliferation of lithium battery applications has underscored the critical role of lithium supply in the transition to industrial electrification. Existing lithium production methods encounter significant challenges in efficiency, scalability, environmental impact, and cost. The integration of redox-mediated electrodialysis with a dense ceramic Li 6/16 Sr 7/16 Ta 3/4 Hf 1/4 O 3 perovskite membrane, distinguished by its unique lattice structure allowing only lithium-ion exchange and transport, enables efficient, highly lithium-selective extraction directly from a diversity of resources including seawater and various brines. This approach offers continuous operation capability, can utilize renewable power, and has notable advantages, including chemical-free operation and little waste generation. Overall, this innovative solution presents a one-step, ecofriendly, highly selective lithium extraction method.