Research in the Cheng Group focuses on materials and processes for next-generation energy-storage technologies, with particular emphasis on solid-state batteries and solid electrolytes. We combine materials synthesis, interfacial and mechanical characterization, scalable processing, and data-driven modeling to understand how composition, structure, processing history, and operating conditions govern performance and reliability. Our work connects materials science, electrochemistry, mechanics, and AI-assisted materials informatics, with the aim of moving promising materials concepts toward practical devices.
Research Interests
- Solid Electrolyte Synthesis and Processing: Design and preparation of oxide, halide, hydride, polymer, and composite solid electrolytes, with attention to phase formation, densification, manufacturability, and interfacial compatibility.
- Battery Interfaces and Degradation: Investigation of electrochemical, chemical, and mechanical degradation processes that limit lifetime, safety, and energy efficiency in advanced battery systems.
- Mechanical Reliability of Energy Materials: Measurement and modeling of mechanical properties, fracture, contact stability, and stress evolution in inorganic and composite materials used in solid-state devices.
- AI-Assisted Materials Discovery: Development and use of data-driven workflows, materials databases, machine learning models, and language-model-assisted tools to accelerate the discovery and design of battery materials.
