Fabrication of additive-free manganese-1,3,5-benzenetricarboxylate thin-film anodes via alternating current electrophoretic deposition for stable lithium storage

초록

We report a binder- and conductive-additive-free Mn-BTC metal–organic framework anode for lithium-ion batteries fabricated by AC electrophoretic deposition (AC-EPD). The AC-EPD process produces a uniform, mechanically robust, and electronically percolated Manganese-1,3,5-benzenetricarboxylate (Mn-BTC) layer directly on the current collector, eliminating inactive components and maximizing the fraction of electrochemically active material. As a result, the Mn-BTC anode delivers high reversible capacity with excellent rate capability and stable long-term cycling, maintaining its performance over repeated charge–discharge processes. Compared with conventional slurry-cast Mn-BTC electrodes that require polymer binders and carbon additives, our AC-EPD-derived electrodes exhibit superior kinetics and durability, demonstrating a scalable route to high-performance MOF-based anodes. © 2024

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