NEES Teleseminars
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ChBE Seminar: Qiang Zhang, Tsinghua University Qiang Zhang, Associate Professor Emerging Materials Concept forLithium-Sulfur Batteries Abstract: Among various promising candidates with high energy densities, lithium-sulfur (Li-S) batteries with a high theoretical capacity and energy density are highly attractive;1-2 while the commercial application of Li-S batteries still faces some persistent obstacles, such as the low electrical conductivity of sulfur and lithium sulfide and the dissolution of polysulfides. The introduction of 3D graphene into the field of Li-S batteries sheds a light on the efficient utilization of sulfur by improving the conductivity of the composites and restraining the shuttle of polysulfides. In this presentation, the concept for the rational design of 3D graphene is explained. The advances in the use of 3D graphene in the cathode, separator, and anode is explained.3-14 New insights on the relationship between the 3D graphene structure and the electrochemical performance are presented. Bio:
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