Two-Dimensional CeO 2 /RGO Composite-Modified Separator for Lithium/Sulfur Batteries

In this work, a modified separator coated with a functional layer of reduced graphene oxide (RGO) anchored by cerium oxide (CeO ) nanoparticles was developed. The superior conductivity of RGO and chemical immobilization of high-ordered sulfur-related species (mainly Li S 4 ≤ n ≤ 8) of CeO yielded ba...

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Bibliographic Details
Published inNanoscale research letters Vol. 13; no. 1; p. 377
Main Authors Wang, Suyu, Gao, Fan, Zhao, Yan, Liu, Ning, Tan, Taizhe, Wang, Xin
Format Journal Article
LanguageEnglish
Published United States 23.11.2018
Subjects
Lithium/sulfur batteries
Modified separator
CeO2/RGO composite
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Summary:In this work, a modified separator coated with a functional layer of reduced graphene oxide (RGO) anchored by cerium oxide (CeO ) nanoparticles was developed. The superior conductivity of RGO and chemical immobilization of high-ordered sulfur-related species (mainly Li S 4 ≤ n ≤ 8) of CeO yielded batteries with enhanced characteristics. A remarkable original capacity of 1136 mAh g was obtained at 0.1 C with capacity retention ratio of 75.7% after 100 charge/discharge cycles. Overall, these data indicate that the separator with CeO /RGO composite is promising to suppress the shuttling of polysulfides for better utilization of the active material.
ISSN:1931-7573