Research
Research Overview
Our research roots in material science, ionic physical chemistry, and fundamental electrochemistry, with the overarching goal of advancing sustainable energy storage technologies and resource circularity. We advance next-generation electrochemical energy storage systems, including aqueous batteries and multivalent metal batteries (Zn and Mg), through the design of novel electrode materials, functional electrolytes, and engineered interphases. In particular, we explore two-dimensional (2D) layered materials, three-dimensional (3D) superlattice architectures, advanced polymeric interphases, and electrolyte formulations to achieve efficient charge and ion transport as well as stable electrochemical interfaces. Complementing these efforts, we develop energy-efficient electrochemical strategies for the extraction, recovery, regeneration, and recycling of critical materials, aiming to establish circular material pathways for future battery technologies. Underpinning all these activities is a fundamental interest in charge-transfer, ion-transport, and interfacial dynamics that govern electrochemical energy storage and materials transformation processes.
2D layered materials &
3D superlattice architectures
The broad family of 2D transition metal layered materials, including MXenes, transition metal dichalcogenides (TMDs), and transition metal halides, exhibits rich chemical and physical diversity. Weak van der Waals interactions and lattice compatibility enable their assembly into artificial 3D superlattice architectures. Our research focuses on developing new synthetic routes, engineering atomically defined 2D layered structures and 3D superlattices, and uncovering emergent properties. In particular, we aim to understand charge and ion transport phenomena and their implications for relevant applications.
Artificial polymeric interphases for next-generation batteries
It has been widely justified for LIBs that the presence of solid electrolyte interphase (SEI) on the anode holds a vital role in regulating interfacial Li-ion transport. However, SEI does not work for all battery chemistries, especially emerging sustainable batteries. The principle of SEI suggests that pre-forming homogeneous, stable, electron-insulating, ion-conducting/-selective interphases on the electrodes could be a universal approach to address the interfacial problems of diverse batteries. We aim to employ molecule-customizable crystalline polymer chemistries to regulate the interfacial charge transfer and solve challenges of next-generation sustainable batteries.
Advanced electrolytes for multivalent metal batteries
Developing novel electrolytes for multivalent metal batteries is essential to tackle challenges presented by multivalent metal ions. Traditional electrolytes are inadequate for these ions due to their high charge density, resulting in issues with kinetics, reversibility, and durability. Advanced electrolytes can improve ion mobility, stability, and safety, unlocking the full potential of multivalent metal batteries. We are committed to formulating advanced electrolytes by innovating new electrolyte components (salts, solvents, and additives), while also exploring novel electrolyte concepts.
Electrochemical extraction and recovery of critical materials
Electrochemical extraction and recovery of critical materials offer a sustainable route to address resource scarcity and supply chain challenges. Our research focuses on developing advanced electrochemical processes for selective ion separation and efficient material recovery from complex sources. We aim to understand the underlying interfacial and transport phenomena, and to design systems that enable high-efficiency, low-energy extraction of critical elements for sustainable technologies.
