Long-life, high-efficiency lithium/sulfur batteries from sulfurized carbon nanotube cathodes

2015 ◽  
Vol 3 (18) ◽  
pp. 10127-10133 ◽  
Author(s):  
Jianhua Yan ◽  
Xingbo Liu ◽  
Xianfeng Wang ◽  
Bingyun Li
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
High Efficiency ◽  
Coulombic Efficiency ◽  
Long Cycle Life ◽  
High Sulfur Content ◽  
Lithium Sulfur Batteries ◽  
Unique Method ◽  
Long Life ◽  
Lithium Sulfur

Sulfurized carbon nanotubes (SCNT) with a high sulfur content (68%) have been produced with a unique method. Li–S cells comprised of the developed SCNT cathodes presented a long cycle life exceeding 1300 cycles and an extremely low capacity decay rate (0.025% per cycle) at 1/3 C rate. Moreover, their Coulombic efficiency was higher than 95.5%.

Long-life Li–S batteries based on enabling the immobilization and catalytic conversion of polysulfides

2019 ◽  
Vol 7 (38) ◽  
pp. 21747-21758 ◽  
Author(s):  
Yupeng Zhang ◽  
Rong Gu ◽  
Shuai Zheng ◽  
KeXuan Liao ◽  
Penghui Shi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Efficiency ◽  
Catalytic Conversion ◽  
Carbon Nanospheres ◽  
One Dimensional ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Lithium Sulfur

A novel hierarchical mesoporous nitrogen-rich carbon nanospheres comprising one-dimensional (1D) bamboo-like carbon nanotubes encapsulating Fe3O4 nanoparticles synthesized are used as a high-efficiency host for lithium–sulfur batteries.

A gel-ceramic multi-layer electrolyte for long-life lithium sulfur batteries

2016 ◽  
Vol 52 (8) ◽  
pp. 1637-1640 ◽  
Author(s):  
Qingsong Wang ◽  
Zhaoyin Wen ◽  
Jun Jin ◽  
Jing Guo ◽  
Xiao Huang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Coulombic Efficiency ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Lithium Sulfur

A gel-ceramic multi-layer Li–S cell exhibits superior electrochemical performance with almost no self-discharge, excellent coulombic efficiency and long cycle life.

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.

Preparation of a graphitic N-doped multi-walled carbon nanotube composite for lithium–sulfur batteries with long-life and high specific capacity

RSC Advances ◽  
2016 ◽  
Vol 6 (80) ◽  
pp. 76568-76574 ◽  
Author(s):  
Chunli Wang ◽  
Feifei Zhang ◽  
Xuxu Wang ◽  
Gang Huang ◽  
Dongxia Yuan ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Specific Capacity ◽  
Capacity Fading ◽  
High Specific Capacity ◽  
Multi Walled Carbon Nanotube ◽  
Lithium Sulfur Batteries ◽  
Long Life ◽  
Carbon Nanotube Composite ◽  
Lithium Sulfur

One of the challenges for lithium–sulfur batteries is a rapid capacity fading owing to the insulating of sulfur and Li2S2/Li2S compounds, the dissolving and consequent shuttling of polysulfide.

Soft approach hydrothermal synthesis of a 3D sulfur/graphene/ multiwalled carbon nanotube cathode for lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78994-78998 ◽  
Author(s):  
Maru Dessie Walle ◽  
Zhifeng Zhang ◽  
Xiaolong You ◽  
Mengyuan Zhang ◽  
Johnny Muya Chabu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

3D sulfur/graphene/multiwalled carbon nanotubes prepared by a hydrothermal method are used as a cathode for lithium–sulfur batteries.

Hydroxylated carbon nanotube enhanced sulfur cathodes for improved electrochemical performance of lithium–sulfur batteries

2015 ◽  
Vol 51 (71) ◽  
pp. 13682-13685 ◽  
Author(s):  
Joo Hyun Kim ◽  
Kun Fu ◽  
Junghyun Choi ◽  
Seho Sun ◽  
Jeonghyun Kim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Lithium Sulfur Batteries ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

Hydroxylated multi-walled carbon nanotubes were introduced into sulfur cathodes to utilize the hydrophilic attraction between the OH group and polysulfides as well as to increase the utilization of sulfur.

Constructing a 3D compact sulfur host based on carbon-nanotube threaded defective Prussian blue nanocrystals for high performance lithium–sulfur batteries

2020 ◽  
Vol 8 (3) ◽  
pp. 1154-1163 ◽  
Author(s):  
Guohong Shen ◽  
Zhixiao Liu ◽  
Piao Liu ◽  
Junfei Duan ◽  
Hussein A. Younus ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Prussian Blue ◽  
High Performance ◽  
Host Material ◽  
Highly Efficient ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

Towards practical lithium–sulfur batteries, a highly efficient sulfur host material based on intertwined carbon-nanotubes (CNTs) and defective Prussian blue (PB) nanocrystals is developed.

A 3D conductive network of porous carbon nanoparticles interconnected with carbon nanotubes as the sulfur host for long cycle life lithium–sulfur batteries

Nanoscale ◽  
2018 ◽  
Vol 10 (47) ◽  
pp. 22601-22611 ◽  
Author(s):  
Shiqiang Luo ◽  
Weiwei Sun ◽  
Jianhuang Ke ◽  
Yiqi Wang ◽  
Shuangke Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Network Structure ◽  
Porous Carbon ◽  
Carbon Nanoparticles ◽  
Cycle Life ◽  
Conductive Network ◽  
Long Cycle Life ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur

We report the design of a novel 3D conductive network structure (CNTs/Co–NC) and its application as a sulfur host for Li–S batteries.

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