Dai Receives Grant for DoE Battery Project
The need for extreme fast charging capabilities in the electric powered transportation industry has prompted the US Department of Energy (DOE) to allocate $19 million to new cost-shared research projects. The focus is to advance battery and vehicle electrification technologies to make widespread commercial utilization realistic. The three main industry challenges they look to overcome are cost of ownership, charge time, and range.
In order to compete with the efficient refueling methods and established infrastructure of traditional combustion systems, DOE aims to attain specific performance benchmarks for each of the three criteria. By 2028, they want to reduce 10-year battery pack costs to under $100 per kilowatt-hour, increase their range to over 300 miles, and be able to charge in under 15 minutes.
The University of Tennessee’s Sheng Dai submitted a proposal for his research on TiNb2O7 based lithium ion batteries and received a $720,000 grant to continue that work. Dai claims, “Commercial lithium ion batteries using graphite as an anode can easily result in lithium plating during extreme fast charging, leading to fast battery fading and safety issues. TiNb2O7 (TNO) has a high theoretical capacity of 387 mAh g-1 with an average operation voltage of 1.66 V vs. Li/Li+, which is far from the lithium plating voltage, therefore, the TNO-based lithium ion batteries are much safer than graphite based ones for transportation applications, particularly for extremely fast charging applications.” In this project, the University of Tennessee (UTK) will collaborate with Dr. Xiaoguang Sun and Jianlin Li at Oak Ridge National Lab (ORNL) to develop TNO and nickel-rich lithium nickel manganese cobalt oxide (NMC) based lithium ion batteries for extreme fast charging applications.
UT employees with at least 25 years of service were recognized at the university’s fall Service Awards Luncheon on Wednesday, Dec. 13. Chemistry professor Ben Xue was honored for their continued contributions and loyalty to the University of Tennessee.
By Grant Currin
It is with sadness that I have to announce the passing of Earl L. Wehry, Emeritus Professor in Chemistry. Earl was born in 1941, received his B.S. in Chemistry from Juniata College and a PhD in Chemistry from Purdue. He joined the faculty of the University of Tennessee in 1970 and rose through the ranks achieving Full Professor in 1977. He retired in 1996 after 26 years of loyal and productive service to the Department of Chemistry, the College and the University. During his career at UT, he mentored 19 students to the PhD and 5 students to MS degrees. He was recognized for his research contributions in Analytical Chemistry with a Chancellor’s award for Research and Creative Achievement and Science Alliance Awards throughout their existence. He published more than 110 research papers in refereed publications as well as several monographs associated with various spectrometric methods of analysis. He was known nationally as an expert in phosphorescence and fluorescence spectroscopy. There is no information on services at this time.
Janice Musfeldt, Ziegler Professor of Chemistry, was elected to the
Two Graduate Students Received Shull Wollan Center Graduate Research Fellowship
Zhiming Liu, a second year graduate student in Dr. Ben Xue’s Research Group, attended the 19th National School on X-Ray and Neutron Scattering from August 5th to 19th held at
The newly completed Strong Hall is a 268,000-square-foot academic science structure that houses Anthropology and Earth & Planetary Sciences departments, General Biology and Chemistry teaching labs, as well as state-of-the-art teaching spaces and lecture halls.
The US Department of Energy’s