Dr. Woo Haw Jiunn is a battery scientist at UM, Malaysia, specializing in energy materials & chemistries for applications in electric vehicles and smart grids. His expertise spans lithium-ion and sodium-ion batteries, supercapacitors, solid-state electrolytes (polymer and ceramic) for all-solid-state batteries, fast-charging anodes with long cycling stability, battery failure analysis, and spent battery regeneration for circular energy solutions. He collaborates with industry partners, IMP Sdn. Bhd. (UPS products and solutions) and EVE Energy Malaysia Sdn. Bhd., a large-scale lithium-ion battery manufacturer. As corresponding author, Dr. Woo has published in leading journals such as Advanced Functional Materials, ACS Nano, Chemical Engineering Journal, Small, and Journal of Energy Chemistry. He has secured 22 research grants, established international collaborations (AOARD, SATU), and received multiple gold medals at innovation exhibitions (ITEX, MTE)—positioning him as a leading battery expert bridging academic research, industrial application, and sustainable energy storage innovation in Malaysia.