Two-Dimensional CeO2/RGO Composite-Modified Separator for Lithium/Sulfur Batteries
Abstract 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 Li2S n 4 ≤ n ≤ 8) of CeO...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2018-11-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s11671-018-2798-5 |
| Summary: | Abstract 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 Li2S n 4 ≤ n ≤ 8) of CeO2 yielded batteries with enhanced characteristics. A remarkable original capacity of 1136 mAh g−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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| ISSN: | 1931-7573 1556-276X |