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<span style="font-size:10.5pt; font-family:"Arial",sans-serif; color:#1F497D">***** Seminar *****</span></p>
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<b><span style="font-size:16.0pt; font-family:"Times New Roman",serif; color:#1F497D">Department of Electrical and Computer Engineering</span></b><span style="font-size:12.0pt; font-family:"Times New Roman",serif"></span></p>
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<b><span style="font-size:16.0pt; font-family:"Times New Roman",serif; color:#1F497D">Materials Engineering Program</span></b><span style="font-size:12.0pt; font-family:"Times New Roman",serif"></span></p>
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<b><span style="font-size:14.0pt; font-family:"Times New Roman",serif; color:#1F497D">Center for Integrated Bio and Nano Systems</span></b><span style="font-size:12.0pt; font-family:"Times New Roman",serif"></span></p>
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<b><span style="font-size:14.0pt; font-family:"Times New Roman",serif; color:#1F497D"> 10:00 a.m., Feb.
</span></b><b><span style="font-size:14.0pt; font-family:"Times New Roman",serif">12<span style="color:#1F497D">, 2021</span></span></b><span style="font-size:12.0pt; font-family:"Times New Roman",serif"></span></p>
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<b><span style="font-size:14.0pt; font-family:"Times New Roman",serif; color:#1F497D">Join Zoom Meeting</span></b><span style="font-size:12.0pt; font-family:"Times New Roman",serif"></span></p>
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<span class="x_MsoHyperlink" style="color: blue; text-decoration: underline;"><b><span style="font-size:14.0pt; font-family:"Times New Roman",serif"><a href="https://urldefense.com/v3/__https:/uofh.zoom.us/j/94179512622__;!!LkSTlj0I!WYHCBhMoXSMZQzBt30xNcu3Y35D-xKBEGgt_MRDMPTOYbj00Pe1vhdQAW2g3$">https://uofh.zoom.us/j/94179512622</a></span></b></span><span class="x_MsoHyperlink" style="color: blue; text-decoration: underline;"><b><span style="font-size:14.0pt"></span></b></span></p>
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<b><span style="color:#1F497D"> </span></b><span style="font-size:12.0pt; font-family:"Times New Roman",serif"></span></p>
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<b><span style="font-size:20.0pt; font-family:"Times New Roman",serif; color:#1F497D">Developing New Electrolytes for Lithium Metal Batteries</span></b></p>
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<b><span style="font-size:18.0pt; font-family:"Times New Roman",serif; color:#1F497D">Wu Xu</span></b></p>
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<b><span style="font-size:18.0pt; color:#1F497D"> </span></b> <span style="font-size:16.0pt; font-family:"Times New Roman",serif; color:#174E86">Energy and Environment Directorate, Pacific Northwest National Laboratory</span></p>
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<b><span style="color:#1F497D">Abstract</span></b><span style="color:#1F497D">: </span><span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#1F497D"> Lithium (Li) metal batteries with conventional nickel-rich transition metal oxide cathodes
have been regarded as one of the next-generation high-energy-density rechargeable battery systems because the Li metal anode has an ultrahigh theoretical specific capacity (3860 mAh g-1) and a very low standard electrochemical redox potential (-3.040 V). However,
two major problems associated with Li metal anode </span><span style="font-size:12.0pt; font-family:Symbol; color:#1F497D">¾</span><span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#1F497D"> Li dendrite growth during repeated cycling
and low Li Coulombic efficiency (CE) still hinder the application of rechargeable Li metal batteries, although many strategies and great progresses have been made in stabilizing Li metal anode in the past decade, including smoothening Li deposition morphology
and increasing Li CE. Among these efforts, the development of novel electrolytes is one of the most important and feasible approaches, which can not only enable Li metal anode to reach high Li CE of 99.5%, but also stabilize high voltage cathodes up to 4.5
V. In this seminar, the development of novel electrolytes to suppress Li dendrites and improve Li CE at PNNL will be introduced. The designing principles of solvating solvents and diluents in a new class of electrolytes called localized high-concentration
electrolytes for high-energy Li metal batteries will be reported. The mechanisms for the performance advancements by the new electrolytes will also be discussed, especially through the Li/electrolyte and cathode/electrolyte interphases.</span><span style="font-size:12.0pt; font-family:"Times New Roman",serif">
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<span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#1F497D"> </span><span style="font-size:12.0pt; font-family:"Times New Roman",serif"><img border="0" width="115" height="166" id="x_Picture_x0020_2" alt="Xu-Wu" style="width:1.1979in; height:1.7291in" data-outlook-trace="F:1|T:1" src="cid:image003.jpg@01D6FDFF.BAC94A10"></span></p>
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<b><span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#174E86">Short Bio</span></b><span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#174E86">:
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<span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#174E86; background:white">Dr. Wu Xu is currently a Chief Scientist in the Battery Materials and Systems Group under the Energy Processes and Materials Division at PNNL. He obtained his
Ph.D. in chemistry from the National University of Singapore in early 2000. He had worked as a Postdoctoral Fellow and Faculty Research Associate in the Department of Chemistry and Biochemistry at Arizona State University, then a Senior Scientist in the Electrolyte
Business Group of Ferro Corporation in Cleveland, Ohio, before joining PNNL in April 2008. Dr. Xu's research interests include the development of battery materials (electrolytes and electrodes), the investigation of electrode/electrolyte interphases and the
integration of batteries, for various energy storage systems including lithium batteries, organic redox flow batteries and supercapacitors. He has about 200 papers published in peer reviewed journals and has an H-index of 81. He is also a coauthor of 1 book
and 7 book chapters, and holds 33 U.S. patents granted with other 11 patents pending. Dr. Xu has received several awards including the 2012 R&D 100 Award, Microscopy Today 2012 Renovation Award, PNNL 2013 Inventor-of-the-Year Award, and 2020 Distinguished
Inventor of Battelle Award.</span></p>
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<span style="font-family:"Times New Roman",serif; color:#174E86">Please </span><span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#174E86; background:white">contact Xiaonan Shan</span><span style="font-family:"Times New Roman",serif; color:#174E86">
<</span><span class="x_MsoHyperlink" style="color: blue; text-decoration: underline;"><a href="mailto:xshan@central.uh.edu">xshan@central.uh.edu</a></span><span style="font-family:"Times New Roman",serif; color:#174E86">> or Jiming Bao (<a href="mailto:jbao@uh.edu">jbao@uh.edu</a>)
if you want to meet with the speaker.</span></p>
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