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

Title
Development of high-energy non-aqueous lithium-sulfur batteries via redox-active interlayer strategy
Authors
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
2022-08
Citation
Nature Communications, 13(1)
Type
Article
ISSN
2041-1723
Abstract
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.
URI
http://hdl.handle.net/20.500.11750/16860
DOI
10.1038/s41467-022-31943-8
Publisher
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
Files:
Collection:
Department of Energy Science and EngineeringLight, Salts and Water Research Group1. Journal Articles


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