title: Ultramicroporous Carbon through an Activation-Free Approach for Li-S and Na-S Batteries in Carbonate-Based Electrolyte.
abstract: We report an activation-free approach for fabricating ultramicroporous carbon as an accommodation of sulfur molecules for Li-S and Na-S batteries applications in carbonate-based electrolyte. Because of the high specific surface area of 967 m2g-1, as well as 51.8% of the pore volume is contributed by ultramicropore with pore size less than 0.7 nm, sulfur cathode exhibits superior electrochemical behavior in carbonate-based electrolyte with a capacity of 507.9 mA h g-1after 500 cycles at 2 C in Li-S batteries and 392 mA h g-1after 200 cycles at 1 C in Na-S batteries, respectively.
authors.forename: Lei
authors.initials: L
authors.lastname: Hu
authors.forename: Yue
authors.initials: Y
authors.lastname: Lu
authors.forename: Tianwen
authors.initials: T
authors.lastname: Zhang
authors.forename: Tao
authors.initials: T
authors.lastname: Huang
authors.forename: Yongchun
authors.identifier: http://orcid.org/0000-0001-6578-9581
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, P. R. China.
authors.forename: Yitai
authors.initials: Y
authors.lastname: Qian
keywords: activation-free approach; carbonate-based electrolyte; lithium−sulfur batteries; metal−sulfur batteries; sodium−sulfur batteries; ultramicroporous carbon