Recently, the 7^thChina (International)Chemical Symposium on Energy Materials & the 8^thInternational Conference on Lithium Sulfur Batteries was held in Zhengzhou. The conference was hosted by Zhengzhou University(ZZU) and organized by School of Chemistry in ZZU, which was co-organized by Henan Chemical Society, Zhengzhou University of Light Industry, Journal of Energy Chemistry, Energy & Environmental Materials, eScience, Research and other journals.