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学术报告:SPAN-FeS复合正极材料在钠离子电池中的应用

发布者:金霞发布时间:2019-10-18浏览次数:10

报告题目:SPAN-FeS复合正极材料在钠离子电池中的应用

报 告 人:Prof. Jou-hyounAhn(安柱炫)

报告时间:20191019日(星期六)上午10:00

报告地点:新能源大楼215会议室

报告人简介:

  韩国科学技术研究院获得博士学位后任韩国庆尚国立大学化工学院、材料工学院教授。历任韩国电化学学会庆尚南道分会会长,绿色能源转换研究院院长。长期从事锂离子、锂硫、钠硫电池电极材料及聚合物电解质的研究,承担韩国多项重大项目,与韩国三星、浦项等公司具有良好合作。

报告摘要:

  Advanced energy storage devices have been a recent research focus owing to the rising demand for high energy density applications, including electric vehicles and energy storage systems. In order to satisfy the escalating energy demands, it is inevitable to improve the energy density of current Li-ion batteries. Previous reports on FeS cathodes are scarce and consist of an amorphous carbon matrix to accommodate the volume changes encountered during the cycling process. However, this inactive buffering matrix eventually increases the weight of the cell, reducing the overall energy density. By the rational design of this hybrid composite cathode, the presence of covalently bonded sulfur in SPAN guarantees high sulfur utilization, while effectively buffering the volume changes in FeS. Meanwhile, FeS can compensate for the conductivity issues in the SPAN, thereby realizing a synergistically driven dual active cathode material improving the overall energy density of the composite.