Woodruff School of Mechanical Engineering

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Recent Progress for Stationary Sodium-Ion Batteries


Dr. Yong-Sheng Hu


Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China


Monday, April 13, 2015 at 11:00:00 AM


MARC Building, Room 201


Ting Zhu


With the tremendous development of renewable energies such as solar and wind powers, the smooth integration of their energies into the grid, thus improving the grid reliability and utilization, critically needs large-scale energy storage systems with long-life, high efficiency, high safety and low cost. Among the various energy storage technologies, electrochemical approach represents one of the most promising means to store the electricity in large-scale because of the flexibility, high energy conversion efficiency and simple maintenance. Due to the highest energy density among practical rechargeable batteries, lithium-ion batteries have been widely used in the portable electronic devices and would undoubtedly be the best choice for the electric vehicles. However, the rarity and non-uniform distribution of lithium in the Earth’s crust may limit their large-scale application in renewable energy. In this regard, room-temperature sodium-ion batteries with lower energy density compared with lithium-ion batteries have been reconsidered particularly for such large-scale applications, where cycle life and cost are more essential factors than energy density owing to the abundant sodium resources (2.75%) and potentially low cost as well as similar “rocking-chair” sodium storage mechanism as lithium.


Yong-Sheng Hu is a professor at the Institute of Physics, Chinese Academy of Sciences (IOP-CAS). He received his Ph.D. at IOP-CAS with Prof. Liquan Chen in 2004, and then moved to Max Planck Institute for Solid State Research as postdoctoral fellow in the Prof. Joachim Maier’s Department. After a short stay at Prof. Eric McFarland’s group in the University of California at Santa Barbara, he joined IOP-CAS in 2008 and is working on advanced materials and technology for long-life grid-scale stationary batteries. He has published over 100 internationally refereed SCI publications including journals.


Refreshments will be served.