Journal
ACS NANO
Volume 10, Issue 1, Pages 1633-1639Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.5b07340
Keywords
monolithic carbon; electrolysis approach; microporous carbon nanosheets; high electrochemical activity; lithium-sulfur battery
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Funding
- National Science Fund for Distinguished Young Scholars [21225312]
- National Natural Science Foundation [21403027, U1462120]
- China Postdoctoral Science Foundation [2014M560202]
- NATIONAL INSTITUTE ON DRUG ABUSE [R01DA035868] Funding Source: NIH RePORTER
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We have developed an electrolysis approach that allows effective and uniform incorporation of sulfur inside the micropores of carbon nanosheets for advanced lithium-sulfur batteries. The sulfur-carbon hybrid can be prepared with a 70 wt % sulfur loading, in which no nonconductive sulfur agglomerations are formed. Because the incorporated sulfur is electrically connected to the carbon matrix in nature, the hybrid cathode shows excellent electrochemical performance,, including a high reversible capacity, good rate capability, and good cycling stability, as compared to one prepared using the popular melt-diffusion method.
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