MTE 2024 - Dr. Woo Haw Jiunn
Project Title: Sodium Ion Battery Innovation: Catalyst for Smart City Electric Mobility Transformation
This work is in line with National Automotive Policy (NAP 2020), National Renewable Energy Policy and contribute to a net-zero greenhouse gas emission society (SDG 7). The European Union aims for 67% greenhouse gas reduction by 2035 and 90% by 2050 through industrial decarbonization and smart city development. Smart energy solutions are crucial, with batteries playing a key role in reducing electric vehicle (EV) carbon footprints and supporting renewable energy integration. Sodium-ion batteries (SIBs) stand out with infinite sodium supply, cost-effectiveness, stability, safety, environmental friendliness, and suitability for large-scale applications. SIBs, currently in early industrialization, focus on low-speed EVs and grid-scale energy storage systems for a sustainable energy transition. We invented Prussian blue analogues (PBA) as cathode materials for SIBs and heterostructure transition metal polysulfide (HTMPS) as anode materials. The synthesized PBA cathode achieved a specific capacity of 97 mAhg−1 at high 10 C-rate (charged from 0 to 100% in 6 minutes). It can operate at high temperatures, up to 80 ℃, and exhibited no significant capacity fading even after the 1000th cycle (3 years of usage), with more than 85% capacity retention. The synthesized HTMPS delivered 553.2 mA h g−1 after 1000 cycles at 10 A g−1.
This invention won the Silver Award at the Malaysia Technology Expo (MTE) 2024.
For inquiries and collaboration, kindly contact woohj@um.edu.my.
#umresearch #MTE #MTE2024 #sustainableenergy #renewableenergy #electricvehicles #EV #smartcities #netzerocarbon #SDG7 #sodiumionbattery #SIB #PrussianBlueAnalogues #HTMPS #cathode #anode #fastcharging #hightemperatureperformance #longcyclelife
