Journal
NANOSCALE RESEARCH LETTERS
Volume 13, Issue -, Pages -Publisher
SPRINGEROPEN
DOI: 10.1186/s11671-018-2798-5
Keywords
CeO2; RGO composite; Modified separator; Lithium; sulfur batteries
Funding
- National Natural Science Foundation of China [51505122]
- Cultivation project of National Engineering Technology Center [2017B090903008]
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In this work, a modified separator coated with a functional layer of reduced graphene oxide (RGO) anchored by cerium oxide (CeO2) nanoparticles was developed. The superior conductivity of RGO and chemical immobilization of high-ordered sulfur-related species (mainly Li2Sn 4n8) of CeO2 yielded batteries with enhanced characteristics. A remarkable original capacity of 1136mAhg(-1) 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 CeO2/RGO composite is promising to suppress the shuttling of polysulfides for better utilization of the active material.
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