A5021421579- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Zeolite Catalysis and Synthesis
- Catalysis for Biomass Conversion
Seoul National University
2022-2025
Abstract O2-type lithium-rich layered oxides, known for mitigating irreversible transition metal migration and voltage decay, provide suitable framework exploring the inherent properties of oxygen redox. Here, we present a series oxides exhibiting minimal structural disordering stable retention even with high anionic redox participation based on nominal composition. Notably, observe distinct asymmetric lattice breathing phenomenon within driven by excessive redox, which includes substantial...
Abstract Combining intercalation and conversion reactions maximizes the utilization of redox‐active elements in electrodes, providing a means for overcoming current capacity ceiling. However, integrating both mechanisms within single electrode material presents significant challenges owing to their contrasting structural requirements. Intercalation requires well‐defined host structure efficient lithium‐ion diffusion, whereas entail reorganization, which can undermine capabilities. Based on...
The current status of lithium-ion battery technology has approached its theoretical capacity ceiling, necessitating a reevaluation the cathode material design strategy. Over past several decades, intercalation and conversion reactions have been recognized as predominant chemistries governing materials. While each these charge storage mechanisms individually enables development high-energy-density materials, integrating both within single-phase presents significant challenges. Intercalation...