凯发

Speaker-Zhaoping Liu

Zhaoping Liu
Institute of Materials Technology & Engineering, CAS, China
Prof. Dr. Liu Zhaoping is the director of AdvancedLi-ion Battery Engineering Lab, Ningbo Institute of Materials Technology &Engineering (NIMTE), Chinese Academy of Sciences. He received his PhD ininorganic chemistry from University of Science & Technology of China (USTC)in 2004. He then worked as postdoctoral researcher in National Institute forMaterial Science (NIMS), Japan, and State University of New York (SUNY) atBinghamton, between 2004 and 2008. Since Oct. 2008, he has worked in NIMTE inthe field of graphene and lithium-ion batteries. He has published near 100peer-reviewed papers with total citing of over 3500, and received more than 100patents.
Title:Porous Graphene-based Anode Materials for Li-ion Batteries
SymposiumLi-ion Battery
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Abstract

Graphene is expected to beone of the most promising materials for Li-ion batteries due to its excellent conductivity, ultra-high surface area and flexible sheet-like structure. It is important to control the microscopic structure of graphene to optimize the transmission behavior of electrons and Li ions for better electrochemical performance. Liu’s group developed a metal etching method for controllable synthesis of porous graphene to enhance diffusion of Li ions. Combining with vacuum filtration or hydrothermal self-assembly, porous graphene anode materials with different morphologies, high specific capacity and excellent rate capability and cyclic stability were obtained. In addition, by altering the reaction atmosphere, porous metal oxides with 2D sheet-like morphology were synthesized using graphene oxide as the sacrificial structure-directing template. Employing this reaction route, film-like ZnCo2O4/graphene composite electrode with excellent electrochemical performance was designed and successfully synthesized, and flexible battery based on this film electrode was fabricated. 

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Abstract: Minyang Lu

Sponsor: Wenyang Yang

Media: Liping Wang

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