Partially unzipped carbon nanotubes for high-rate and stable lithium–sulfur batteries

2016 ◽  
Vol 4 (3) ◽  
pp. 819-826 ◽  
Author(s):  
Y. C. Jeong ◽  
K. Lee ◽  
T. Kim ◽  
J. H. Kim ◽  
J. Park ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Area ◽  
High Performance ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Oxygen Groups ◽  
Lithium Sulfur

Partially unzipped MWCNTs provide increased surface area and accessible inner pores with oxygen groups leading to high performance sulfur batteries.

scholarly journals Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries

2021 ◽  
Vol 10 (1) ◽  
pp. 20-33
Author(s):  
Lian Wu ◽  
Yongqiang Dai ◽  
Wei Zeng ◽  
Jintao Huang ◽  
Bing Liao ◽  
...  
Keyword(s):  
Network Architecture ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Carbon Networks ◽  
Carbon Coated ◽  
Lithium Sulfur ◽  
Initial Capacity

Abstract Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.

High-performance lithium sulfur batteries enabled by a synergy between sulfur and carbon nanotubes

2019 ◽  
Vol 16 ◽  
pp. 194-202 ◽  
Author(s):  
Amir Abdul Razzaq ◽  
Yuanzhou Yao ◽  
Rahim Shah ◽  
Pengwei Qi ◽  
Lixiao Miao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Aminomethyl‐Functionalized Carbon Nanotubes as a Host of Small Sulfur Clusters for High‐Performance Lithium–Sulfur Batteries

ChemSusChem ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2761-2768 ◽  
Author(s):  
Fen Li ◽  
Jiayou Tao ◽  
Zhijun Zou ◽  
Chang Li ◽  
Zhaohui Hou ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Functionalized Carbon Nanotubes ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Incorporation ZnS quantum dots into carbon nanotubes for high-performance lithium–sulfur batteries

2020 ◽  
Vol 31 (49) ◽  
pp. 495406
Author(s):  
Tianyu Shi ◽  
Chenyuan Zhao ◽  
Chuan Yin ◽  
Haihong Yin ◽  
Changqing Song ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A multifunctional separator based on scandium oxide nanocrystal decorated carbon nanotubes for high performance lithium–sulfur batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 6832-6843 ◽  
Author(s):  
Jun Xu ◽  
Qi Zhang ◽  
Xin Liang ◽  
Jian Yan ◽  
Jiaqin Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Rare Earth ◽  
Energy Storage ◽  
High Performance ◽  
Storage Systems ◽  
Rare Earth Oxides ◽  
Scandium Oxide ◽  
Energy Storage Systems ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Rare earth oxides, for example scandium oxide, may open up a new prospect towards the development of advanced Li–S batteries and other energy storage systems.

Biomimetic 3D Fe/CeO2 decorated N-doped carbon nanotubes architectures for high-performance lithium-sulfur batteries

2020 ◽  
Vol 401 ◽  
pp. 126079 ◽  
Author(s):  
Tianyi Wang ◽  
Dawei Su ◽  
Yi Chen ◽  
Kang Yan ◽  
Lu Yu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

scholarly journals Construction of Electrocatalytic and Heat-Resistant Self-Supporting Electrodes for High-Performance Lithium–Sulfur Batteries

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Xuemei Zhang ◽  
Yunhong Wei ◽  
Boya Wang ◽  
Mei Wang ◽  
Yun Zhang ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
High Performance ◽  
Structural Engineering ◽  
Utilization Efficiency ◽  
High Rate ◽  
Shuttle Effect ◽  
Electrocatalytic Effect ◽  
Lithium Sulfur Batteries ◽  
Engineering Strategy ◽  
Lithium Sulfur

Abstract Boosting the utilization efficiency of sulfur electrodes and suppressing the “shuttle effect” of intermediate polysulfides remain the critical challenge for high-performance lithium–sulfur batteries (LSBs). However, most of reported sulfur electrodes are not competent to realize the fast conversion of polysulfides into insoluble lithium sulfides when applied with high sulfur loading, as well as to mitigate the more serious shuttle effect of polysulfides, especially when worked at an elevated temperature. Herein, we reported a unique structural engineering strategy of crafting a unique hierarchical multifunctional electrode architecture constructed by rooting MOF-derived CoS2/carbon nanoleaf arrays (CoS2–CNA) into a nitrogen-rich 3D conductive scaffold (CTNF@CoS2–CNA) for LSBs. An accelerated electrocatalytic effect and improved polysulfide redox kinetics arising from CoS2–CNA were investigated. Besides, the strong capillarity effect and chemisorption of CTNF@CoS2–CNA to polysulfides enable high loading and efficient utilization of sulfur, thus leading to high-performance LIBs performed not only at room temperature but also up to an elevated temperature (55 °C). Even with the ultrahigh sulfur loading of 7.19 mg cm−2, the CTNF@CoS2–CNA/S cathode still exhibits high rate capacity at 55 °C.

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