scholarly journals Lithium-Sulfur Batteries: High-Energy, High-Rate, Lithium-Sulfur Batteries: Synergetic Effect of Hollow TiO2 -Webbed Carbon Nanotubes and a Dual Functional Carbon-Paper Interlayer (Adv. Energy Mater. 1/2016)

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Jang-Yeon Hwang ◽  
Hee Min Kim ◽  
Sang-Kyu Lee ◽  
Joo-Hyeong Lee ◽  
Ali Abouimrane ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Synergetic Effect ◽  
High Energy ◽  
High Rate ◽  
Carbon Paper ◽  
Dual Functional ◽  
Lithium Sulfur Batteries ◽  
Energy Mater ◽  
Lithium Sulfur

scholarly journals Confine sulfur in double-hollow carbon sphere integrated with carbon nanotubes for advanced lithium–sulfur batteries

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Maru Dessie Walle ◽  
You-Nian Liu
Keyword(s):  
Carbon Nanotubes ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Sphere ◽  
Hollow Carbon Sphere ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Lithium Sulfur

AbstractThe lithium–sulfur (Li–S) batteries are promising because of the high energy density, low cost, and natural abundance of sulfur material. Li–S batteries have suffered from severe capacity fading and poor cyclability, resulting in low sulfur utilization. Herein, S-DHCS/CNTs are synthesized by integration of a double-hollow carbon sphere (DHCS) with carbon nanotubes (CNTs), and the addition of sulfur in DHCS by melt impregnations. The proposed S-DHCS/CNTs can effectively confine sulfur and physically suppress the diffusion of polysulfides within the double-hollow structures. CNTs act as a conductive agent. S-DHCS/CNTs maintain the volume variations and accommodate high sulfur content 73 wt%. The designed S-DHCS/CNTs electrode with high sulfur loading (3.3 mg cm−2) and high areal capacity (5.6 mAh mg cm−2) shows a high initial specific capacity of 1709 mAh g−1 and maintains a reversible capacity of 730 mAh g−1 after 48 cycles at 0.2 C with high coulombic efficiency (100%). This work offers a fascinating strategy to design carbon-based material for high-performance lithium–sulfur batteries.

Cathode materials based on carbon nanotubes for high-energy-density lithium–sulfur batteries

Carbon ◽  
2014 ◽  
Vol 75 ◽  
pp. 161-168 ◽  
Author(s):  
Lin Zhu ◽  
Wancheng Zhu ◽  
Xin-Bing Cheng ◽  
Jia-Qi Huang ◽  
Hong-Jie Peng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
Cathode Materials ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Flexible all-carbon interlinked nanoarchitectures as cathode scaffolds for high-rate lithium–sulfur batteries

2014 ◽  
Vol 2 (28) ◽  
pp. 10869-10875 ◽  
Author(s):  
Jia-Qi Huang ◽  
Hong-Jie Peng ◽  
Xin-Yan Liu ◽  
Jing-Qi Nie ◽  
Xin-Bing Cheng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Mechanical Strength ◽  
High Capacity ◽  
Rate Capability ◽  
High Rate ◽  
Sulfur Cathode ◽  
High Mechanical Strength ◽  
Cathode Electrode ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A flexible sulfur cathode electrode based on interlinked carbon nanotubes/carbon nanocages with superior conductivity and high mechanical strength was fabricated, which presented an high capacity of 1354 mAh g−1 and exhibited a high electrochemical rate capability.

Porous carbon nanotubes etched by water steam for high-rate large-capacity lithium–sulfur batteries

2014 ◽  
Vol 2 (23) ◽  
pp. 8683-8689 ◽  
Author(s):  
Zhubing Xiao ◽  
Zhi Yang ◽  
Huagui Nie ◽  
Yanqi Lu ◽  
Keqin Yang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Water Vapor ◽  
Porous Carbon ◽  
Pore Volume ◽  
High Specific Surface Area ◽  
High Rate ◽  
Water Steam ◽  
Lithium Sulfur Batteries ◽  
One Step ◽  
Lithium Sulfur

A simple, green, scalable one-step approach to obtain porous CNTs (PCNTs) with a high specific surface area and pore volume has been developed involving a mild chemical reaction between CNTs and rare oxygen sourced from nebulized water vapor at high temperatures.

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