(Lecture, May 19) Recent Progress in Intermediate-temperature Solid Oxide Metal-air Redox Battery Operated on O2--Chemistry
May 17,2017 08:25:31 readCount:235
Title:Recent Progress in Intermediate-temperature Solid Oxide Metal-air Redox Battery Operated on O2--Chemistry
Speaker: Professor Kevin Huang (University of South Carolina)
Venue: Room 215, Building B4, University Town Campus
Time: Friday, May 19, 2017, 15:00
Kevin Huang is currently a full professor of Mechanical Engineering Department at College of Engineering and Computing. His research, currently funded by NSF, DOE, DoD and industry, focuses on experimental and theoretical studies of electrochemical materials and engineering for energy conversion and storage ranging from batteries, fuel cells to separation membranes. Over his professional career, he has published two books, one book chapter and >150 peer-reviewed journal papers among Energy and Environmental Science, Nano Letters, ACS Energy Letters, Advanced Functional Materials, Chemical Sciences, Chemistry of Materials,Journal of Materials Chemistry A, etc.. He also holds 12 US patents. Kevin graduated from University of Science and Technology Beijing in 1992, conducted his postdoc research in Prof. John B. Goodenough’s group at University of Texas at Austin from 1995-2000 and worked as a senior, principal and fellow engineer at Siemens Energy from 2000-2010 before joining University of South Carolina(USC) in 2010. Over his 7 years at USC, he has attracted over $5.5 million research funding. He is a recipient of 2017 USC Educational Foundation Award for Research in Science, Engineering and Mathematics, 2015 College of Engineering and Computing Research Achievement Award, and 2014 University Breakthrough Stars.
A new bifunctional fuel-cell/battery hybrid system has recently been proposed and developed in the presenter’s group. The new system is comprised of a reversible SOFC as the electrical charger/discharger and a redox-active metal/metal-oxide chemical bed as the energy store. During operation, the oxygen-electrode of the system is constantly open to air, performing reduction (discharge) and evolution (charge) reaction of oxygen molecules, while the fuel-electrode enclosing a Fe/FeOx redox couple as the chemical bed and a mixture of H2/H2O as the oxygen shuttling gas performs the energy storage functionality via reaction Fe+xH2O=FeOx+xH2. The dual functionality of the system is a distinguished feature compared with other metal-air batteries: power generation when the fuel-electrode chamber is open to a flowing fuel, and energy storage when the fuel-electrode chamber is closed. The presentation highlights pros and cons of the new battery chemistry and recent progress made in the presenter’s lab in performance enhancement through materials advancement and microstructural optimization.

Announced by School of Environment and Energy