Cited 0 time in webofscience Cited 0 time in scopus

Development of high-energy non-aqueous lithium-sulfur batteries via redox-active interlayer strategy

Development of high-energy non-aqueous lithium-sulfur batteries via redox-active interlayer strategy
Lee, Byong-JuneZhao, ChenYu, Jeong-HoonKang, Tong-HyunPark, Hyean-YeolKang, JoonheeJung, YongjuLiu, XiangLi, TianyiXu, WenqianZuo, Xiao-BingXu, Gui-LiangAmine, KhalilYu, Jong-Sung
DGIST Authors
Lee, Byong-June; Zhao, Chen; Yu, Jeong-Hoon; Kang, Tong-Hyun; Park, Hyean-Yeol; Kang, Joonhee; Jung, Yongju; Liu, Xiang; Li, Tianyi; Xu, Wenqian; Zuo, Xiao-Bing; Xu, Gui-Liang; Amine, Khalil; Yu, Jong-Sung
Issue Date
Nature Communications, 13(1)
Lithium-sulfur batteries have theoretical specific energy higher than state-of-the-art lithium-ion batteries. However, from a practical perspective, these batteries exhibit poor cycle life and low energy content owing to the polysulfides shuttling during cycling. To tackle these issues, researchers proposed the use of redox-inactive protective layers between the sulfur-containing cathode and lithium metal anode. However, these interlayers provide additional weight to the cell, thus, decreasing the practical specific energy. Here, we report the development and testing of redox-active interlayers consisting of sulfur-impregnated polar ordered mesoporous silica. Differently from redox-inactive interlayers, these redox-active interlayers enable the electrochemical reactivation of the soluble polysulfides, protect the lithium metal electrode from detrimental reactions via silica-polysulfide polar-polar interactions and increase the cell capacity. Indeed, when tested in a non-aqueous Li-S coin cell configuration, the use of the interlayer enables an initial discharge capacity of about 8.5 mAh cm−2 (for a total sulfur mass loading of 10 mg cm−2) and a discharge capacity retention of about 64 % after 700 cycles at 335 mA g−1 and 25 °C. © 2022, UChicago Argonne, LLC, Operator of Argonne National Laboratory.
Nature Publishing Group
Related Researcher
  • Author Yu, Jong-Sung Light, Salts and Water Research Group
  • Research Interests Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
Department of Energy Science and EngineeringLight, Salts and Water Research Group1. Journal Articles

qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.