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SUPPLEMENTARY INFORMATIONdoi: 10.1038/nmat2460
nature materials | www.nature.com/naturematerials 11
Supplementary Information for:
A Highly Ordered Nanostructured Carbon-Sulfur Cathode for Li-S Batteries
Xiulei Ji, Kyu Tae Lee and Linda F. Nazar*
University of Waterloo, Department of Chemistry, Waterloo, Ontario, Canada N2L 3G1
* to whom correspondence should be addressed: [email protected]
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SUPPLEMENTARY INFORMATION doi: 10.1038/nmat2460
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S
a b
c
S
Figure S1. SEM images of (a) a mixture of CMK-3 and sulfur before heating; (b) CMK-3/S
prepared at 145 ºC; (c) CMK-3/S prepared at 155 ºC. Sulfur outside of structure of CMK-3 is
indicated by the outlined red square (inset) in part a, b.
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SUPPLEMENTARY INFORMATIONdoi: 10.1038/nmat2460
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S
a b
c
S
Figure S1. SEM images of (a) a mixture of CMK-3 and sulfur before heating; (b) CMK-3/S
prepared at 145 ºC; (c) CMK-3/S prepared at 155 ºC. Sulfur outside of structure of CMK-3 is
indicated by the outlined red square (inset) in part a, b.
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Figure S2. Thermogravimetric analysis of a typical CMK-3/S composite in a N2 atmosphere with a
heating rate of 20 ºC/min, showing the S content of 69.3 wt%.
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CMK-3/S-145
CMK-3 + sulfur
CMK-3/S-155
Figure S3. The galvanostatic discharge and charge profiles of the first cycle of CMK-3 + sulfur;
CMK-3/S-145; and CMK-3/S-155.
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SUPPLEMENTARY INFORMATIONdoi: 10.1038/nmat2460
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CMK-3/S-145
CMK-3 + sulfur
CMK-3/S-155
Figure S3. The galvanostatic discharge and charge profiles of the first cycle of CMK-3 + sulfur;
CMK-3/S-145; and CMK-3/S-155.
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Figure S4. The galvanostatic discharge and charge profiles of the first cycle of CMK-3/S-155 at a
current density of 336 mA/g (C/5) compared to a current density of 168 mA/g (C/10).
Current density: 168 mA/g (C/10)
Current density: 336 mA/g (C/5)