Free-Standing Sulfur-Carbon Nanotube Electrode with a Deposited Sulfur Layer for High-Energy Lithium-Sulfur Batteries

2020 ◽  
Vol 20 (8) ◽  
pp. 5019-5023
Author(s):  
Jukyoung Kang ◽  
Yongju Jung
Keyword(s):  
Carbon Nanotube ◽  
High Energy ◽  
Free Standing ◽  
Electron Microscopic ◽  
Capacity Retention ◽  
Lithium Sulfur Batteries ◽  
Sulfur Layer ◽  
Scanning Electron Microscopic ◽  
S Deposition ◽  
Areal Capacity

To obtain a high S-loading cathode for a Li–S battery, we propose a free-standing carbon nanotube (CNT)-based S cathode, which consists of two layers: a pure S deposition layer with a thickness of 20 μm, and a S-containing CNT film (S-CNT). Based on scanning electron microscopic (SEM) studies, it was observed that the S layer completely vanished when the cell with the S/S-CNT cathode was discharged to 2.1 V after cell assembly, indicating that the thick sulfur film dissolved in the form of polysulfide intermediates during discharge. The proposed S/S-CNT cathode delivered double the areal capacity with good capacity retention of 83% after 100 cycles, compared with that of the control cathode (S-CNT). Thus, we believe that our new cathode design will be useful in developing stable, high-energy Li–S batteries.

Sulfur vacancies in Co9S8-x/N-doped graphene enhancing electrochemical kinetics to high-performance lithium sulfur batteries

2021 ◽  
Author(s):  
Haojie Li ◽  
Yihua Song ◽  
Kai Xi ◽  
Wei Wang ◽  
Sheng Liu ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Catalytic Conversion ◽  
High Energy ◽  
Electrochemical Kinetics ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Sulfur Battery ◽  
Areal Capacity ◽  
Lithium Sulfur

A sufficient areal capacity is necessary for achieving high-energy lithium sulfur battery, which requires high enough sulfur loading in cathode materials. Therefore, kinetically fast catalytic conversion of polysulfide intermediates is...

Rational design of free-standing 3D porous MXene/rGO hybrid aerogels as polysulfide reservoirs for high-energy lithium–sulfur batteries

2019 ◽  
Vol 7 (11) ◽  
pp. 6507-6513 ◽  
Author(s):  
Jianjun Song ◽  
Xin Guo ◽  
Jinqiang Zhang ◽  
Yi Chen ◽  
Chaoyue Zhang ◽  
...  
Keyword(s):  
Rational Design ◽  
High Energy ◽  
Free Standing ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Overall Performance ◽  
Hybrid Aerogels ◽  
First Time ◽  
Lithium Sulfur ◽  
Hybrid Aerogel

A Ti3C2Tx MXene/rGO hybrid aerogel is applied for the first time as a free-standing polysulfide reservoir to inhibit the shuttle effect and improve the overall performance of Li–S batteries.

scholarly journals Bacterial Filtration Using Carbon Nanotube/Antibiotic Buckypaper Membranes

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Luke J. Sweetman ◽  
Leighton J. Alcock ◽  
Jason D. McArthur ◽  
Elise M. Stewart ◽  
Gerry Triani ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Nitrogen Adsorption ◽  
Morphological Properties ◽  
Free Standing ◽  
Electron Microscopic ◽  
E Coli ◽  
Binding Isotherms ◽  
Triton X ◽  
Walled Carbon Nanotubes

The preparation of free-standing carbon nanotube “buckypaper” (BP) membranes consisting of either single-walled carbon nanotubes (SWNTs) or multi-walled carbon nanotubes (MWNTs), and the antibiotic ciprofloxacin (cipro), is reported. The electrical, mechanical and morphological properties of these membranes have been characterised and are compared to those of the corresponding buckypaper membranes containing the surfactant Triton X-100 (Trix). Analysis of scanning electron microscopic images of the surfaces of SWNT/cipro and SWNT/Trix (Trix  =  Triton X-100) buckypapers revealed that the diameter of their surface pores was significantly smaller than that of the corresponding materials prepared using MWNTs. Similarly, the average internal pore diameter of both SWNT buckypapers was found to be smaller than that of their MWNT counterparts, after analysis of binding isotherms derived from nitrogen adsorption/desorption measurements performed on the materials. All four buckypaper membranes examined were found to be >99% effective for removingEscherichia coli(E. coli) from aqueous suspensions. However, buckypapers containing ciprofloxacin outperformed their counterparts containing the surfactant. Both MWNT buckypapers were more effective at preventing passage ofE. colithan their analogues containing SWNTs, while fluorescence microscopic examination of stained membrane surfaces demonstrated that buckypapers composed of SWNTs had greater bactericidal properties.

scholarly journals Free-standing and binder-free highly N-doped carbon/sulfur cathodes with tailorable loading for high-areal-capacity lithium–sulfur batteries

2015 ◽  
Vol 3 (41) ◽  
pp. 20482-20486 ◽  
Author(s):  
A. Schneider ◽  
C. Suchomski ◽  
H. Sommer ◽  
J. Janek ◽  
T. Brezesinski
Keyword(s):  
High Loading ◽  
Carbon Paper ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Sulfur Host ◽  
Sulfur Cathodes ◽  
Areal Capacity ◽  
Lithium Sulfur

A practical high-loading Li–S battery is realized by using free-standing and highly conductive N-doped carbon paper as sulfur host.

scholarly journals Electrodes: Hierarchical Free-Standing Carbon-Nanotube Paper Electrodes with Ultrahigh Sulfur-Loading for Lithium-Sulfur Batteries (Adv. Funct. Mater. 39/2014)

2014 ◽  
Vol 24 (39) ◽  
pp. 6244-6244 ◽  
Author(s):  
Zhe Yuan ◽  
Hong-Jie Peng ◽  
Jia-Qi Huang ◽  
Xin-Yan Liu ◽  
Dai-Wei Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

scholarly journals A Free-Standing Sulfur/Nitrogen-Doped Carbon Nanotube Electrode for High-Performance Lithium/Sulfur Batteries

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Yan Zhao ◽  
Fuxing Yin ◽  
Yongguang Zhang ◽  
Chengwei Zhang ◽  
Almagul Mentbayeva ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Free Standing ◽  
Nitrogen Doped ◽  
Lithium Sulfur Batteries ◽  
Nitrogen Doped Carbon ◽  
Lithium Sulfur

Interconnected carbon nanotube/graphene nanosphere scaffolds as free-standing paper electrode for high-rate and ultra-stable lithium–sulfur batteries

Nano Energy ◽  
2015 ◽  
Vol 11 ◽  
pp. 746-755 ◽  
Author(s):  
Lin Zhu ◽  
Hong-Jie Peng ◽  
Jiyuan Liang ◽  
Jia-Qi Huang ◽  
Cheng-Meng Chen ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Rate ◽  
Free Standing ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur
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