Achieving Fast-Kinetics Charge Storage with 2D Layered Metal Compounds

The demand for high power and energy density in energy storage devices is crucial for practical applications and future scalability. To address the power-energy tradeoff, designing new electrode materials or modifying existing ones is essential. Two-dimensional (2D) layered metal compounds are particularly promising as ion-hosting materials for various batteries due to their unique intercalation mechanisms. These materials exhibit significant structural diversity (e.g., oxides, chalcogenides, and MXenes) and offer tunable interlayer spaces and surface chemistries, making them an ideal platform for gaining a deeper understanding of nanoconfined ion transport behaviors.^1-3 Unveiling these fundamental mechanisms is key to designing advanced electrodes for sustainable batteries that utilize multivalent or complex charge carriers. In this context, our research focuses on developing new synthetic approaches for 2D materials to precisely control their interlayer structures and surface chemistries, identifying the critical factors that influence charge and ion transport and storage. In this talk, I will present several interlayer engineering strategies for inorganic 2D layered materials to regulate ion transport behavior and enhance the power-energy performance of energy storage devices.^4-8

References
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8. Yu, M. et al., Nat. Commun. 2024, 15, 2139.