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Biomass Derived Highly-Ordered Carbon Tube as Cathode Material for High Performance Lithium-Sulfur Batteries
Author NameAffiliationE-mail
ZHANG Meng-Yuan 1 College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Chemical Power Sources, Central South University, Changsha 410083, China 
 
YOU Xiao-Long 1 College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China 
 
LIU Li-Jun College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China  
Maru Dessie Walle College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China  
LI Ya-Juan College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Chemical Power Sources, Central South University, Changsha 410083, China 
yajuanli@csu.edu.cn 
LIU You-Nian College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Hunan Provincial Key Laboratory of Chemical Power Sources, Central South University, Changsha 410083, China 
liuyounian@csu.edu.cn 
Abstract: A novel highly ordered carbon tube (OCT) arrays derived from palm tree fiber by carbonization and activation with KOH was prepared and used as hosts for lithium sulfur battery. The OCT possessed large specific area and pore volume, which could effectively store sulfur. The method was clean, facile and low cost. Moreover, the S@OCT composite exhibited admirable electrochemical performances. The S@OCT with 65%(w/w) sulfur delivered an initial discharge capacity of 1 255.2 mAh·g-1 (1.8 mAh·cm-2) and retained 756.9 mAh·g-1 (1.09 mAh·cm-2) at the current rate of 0.2C after 100 cycles with a high coulomb efficiency. What's more, when tested at 5C, its initial capacity was up to 649.1 mAh·g-1 (0.93 mA h·cm-2) and retained 504.2 mAh·g1 (0.72 mAh·cm-2) after 100 cycles.
Keywords: lithium battery  sulfur electrode  biomass  carbon materials  high coulomb efficiency
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ZHANG Meng-Yuan,YOU Xiao-Long,LIU Li-Jun,Maru Dessie Walle,LI Ya-Juan,LIU You-Nian.Biomass Derived Highly-Ordered Carbon Tube as Cathode Material for High Performance Lithium-Sulfur Batteries[J].Chinese Journal of Inorganic Chemistry,2019,35(8):1493-1499.
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Chinese Journal of Inorganic Chemistry