报告摘要：Aqueous zinc-ion batteries (ZIBs) promise a few advantages: natural abundance and massive production; non‐toxic, easy and mature processing, high volumetric energy density, high stability and compatibility in aqueous electrolytes, and the two-electron-redox properties offer a high theoretical anode capacity. In spite of great progress made in recent years, some critical challenges remain to be addressed, such as dissolution of cathodes, formation of basic zinc salts, co-intercalation of protons, and large voltage gap of redox pairs. In this presentation, I will take vanadium pentoxide and hydrate vanadium pentoxide as model systems to demonstrate that the pre-insertion of cations and organic complex can effectively reduce the charge-discharge polarization, resulting in much enhanced storage capacity, and high energy conversion efficiency with excellent cycling stability. Various possible mechanisms for the enhanced electrochemical properties and battery performance are discussed.

专家介绍：Dr. Guozhong Cao（曹国忠博士），美国华盛顿大学、材料科学与工程系和化学工程系Boeing-Steiner（波音-斯泰纳）教授。发表科技论文800多篇，撰写和编辑论著8本，获得美国专利21项。Clarivate高被引学者，论文总引用次数超过68,000，h指数130。著作《纳米结构与纳米材料：合成、性质和应用》英文版已经印刷并销售超过12,000本，在100多所大学被用作教材或参考书，并被翻译成俄语、韩语和中文出版。现为Science China Materials和Journal of Nanophotonics杂志副主编，Batteries & Supercaps编委会成员，Nano Energy、Energy Storage Materials、Journal of Materiomics、Advanced Electronic Materials、Particle & Particle Systems Characterization等期刊编辑。

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