Next-Gen Mg-ion Battery: Low Cost and High Energy Density
Principal Investigator: Dr. Wending Pan (Research Assistant Professor from Department of Mechanical Engineering)
This project is showcased in the fourth exhibition – Innovation for Impacts.
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About the scholar
Dr. Wending Pan
Research interests:
- Aqueous ion batteries working mechanism
- Advanced solid-state electrolytes
- Multi-ion (de-) intercalation behaviors
Email: wdpan21@hku.hk
Website: https://www.mech.hku.hk/academic-staff/pan-wending
Project information
Despite the commercial success of current lithium-ion batteries, they suffer from several constraints, including high cost, material scarcity, flammability, and limited energy density. These limitations call for the exploration and development of alternative battery technologies. The main objective of this proposed project was to develop a low-cost, safe, and high-performing magnesium-ion rechargeable battery. Using magnesium metal anode and water-based electrolytes, the designed battery is safe, cost-effective, and high-performing. The aqueous Mg-ion battery shows high voltage (>2.5 V), high energy density, and robust stability. This cutting-edge battery technology presents an attractive alternative to conventional Li-ion batteries, providing a cheaper, safer, and greener energy storage solution.
Novelty
- A high discharge voltage of up to 2.6 V, remarkable capacity of 1000 mAh/g, and robust cycle stability
- Integrated in a coin cell and pouch cell configuration for use in consumer electronics
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