Local charge rearrangement to boost the chemical adsorption and catalytic conversion of polysulfides for high-performance lithium–sulfur batteries

2021 ◽  
Author(s):  
Tongkun Zhao ◽  
Junwu Chen ◽  
Menglei Yuan ◽  
Kaiqing Dai ◽  
Jingxian Zhang ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Performance ◽  
Catalytic Conversion ◽  
Chemical Adsorption ◽  
Local Charge ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

The optimization of electronic structure via the local charge rearrangement enables the remarkable adsorptive and catalytic capabilities for polysulfides towards the excellent performances of 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...

scholarly journals Chemical Adsorption and Physical Confinement of Polysulfides with the Janus-faced Interlayer for High-performance Lithium-Sulfur Batteries

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Poramane Chiochan ◽  
Siriroong Kaewruang ◽  
Nutthaphon Phattharasupakun ◽  
Juthaporn Wutthiprom ◽  
Thana Maihom ◽  
...  
Keyword(s):  
High Performance ◽  
Chemical Adsorption ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

scholarly journals WO3 Nanowire/Carbon Nanotube Interlayer as a Chemical Adsorption Mediator for High-Performance Lithium-Sulfur Batteries

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 377
Author(s):  
Sang-Kyu Lee ◽  
Hun Kim ◽  
Sangin Bang ◽  
Seung-Taek Myung ◽  
Yang-Kook Sun
Keyword(s):  
Structural Stability ◽  
High Performance ◽  
High Capacity ◽  
Chemical Adsorption ◽  
Electrochemical Testing ◽  
Lithium Polysulfide ◽  
Lithium Sulfur Batteries ◽  
A Cell ◽  
Catalytic Effects ◽  
Lithium Sulfur

We developed a new nanowire for enhancing the performance of lithium-sulfur batteries. In this study, we synthesized WO3 nanowires (WNWs) via a simple hydrothermal method. WNWs and one-dimensional materials are easily mixed with carbon nanotubes (CNTs) to form interlayers. The WNW interacts with lithium polysulfides through a thiosulfate mediator, retaining the lithium polysulfide near the cathode to increase the reaction kinetics. The lithium-sulfur cell achieves a very high initial discharge capacity of 1558 and 656 mAh g−1 at 0.1 and 3 C, respectively. Moreover, a cell with a high sulfur mass loading of 4.2 mg cm−2 still delivers a high capacity of 1136 mAh g−1 at a current density of 0.2 C and it showed a capacity of 939 mAh g−1 even after 100 cycles. The WNW/CNT interlayer maintains structural stability even after electrochemical testing. This excellent performance and structural stability are due to the chemical adsorption and catalytic effects of the thiosulfate mediator on WNW.

scholarly journals Author Correction: Chemical Adsorption and Physical Confinement of Polysulfides with the Janus-faced Interlayer for High-performance Lithium-Sulfur Batteries

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Poramane Chiochan ◽  
Siriroong Kaewruang ◽  
Nutthaphon Phattharasupakun ◽  
Juthaporn Wutthiprom ◽  
Thana Maihom ◽  
...  
Keyword(s):  
High Performance ◽  
Chemical Adsorption ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

In situ grown α-Cos/Co heterostructures on nitrogen doped carbon polyhedra enabling the trapping and reaction-intensification of polysulfides towards high performance lithium sulfur batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20579-20588 ◽  
Author(s):  
Shaonan Gu ◽  
Zhaowen Bai ◽  
Soumyadip Majumder ◽  
Baoling Huang ◽  
Guohua Chen
Keyword(s):  
High Performance ◽  
Catalytic Conversion ◽  
Nitrogen Doped ◽  
Strong Adsorption ◽  
Lithium Sulfur Batteries ◽  
Nitrogen Doped Carbon ◽  
Lithium Sulfur

The α-CoS/Co heterostructure provides a strong adsorption and facilitates fast catalytic conversion of polysulfides.

Blocking polysulfides with a Janus Fe3C/N-CNF@RGO electrode via physiochemical confinement and catalytic conversion for high-performance lithium–sulfur batteries

2021 ◽  
Author(s):  
Jiayi Li ◽  
Hongwei Zhang ◽  
Linqu Luo ◽  
Hao Li ◽  
Junyu He ◽  
...  
Keyword(s):  
High Performance ◽  
Catalytic Conversion ◽  
Cycling Stability ◽  
Physical Barrier ◽  
Chemical Immobilization ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A novel Janus Fe3C/N-CNF@RGO electrode was successfully constructed, which realizes the co-existence of chemical immobilization, catalytic ability, and physical barrier in 3D conductive networks, enabling robust cycling stability of Li–S battery

Enhanced Catalytic Conversion of Polysulfides Using Bimetallic Co7Fe3 for High-Performance Lithium–Sulfur Batteries

ACS Nano ◽  
2020 ◽  
Vol 14 (9) ◽  
pp. 11558-11569 ◽  
Author(s):  
Pan Zeng ◽  
Cheng Liu ◽  
Xiaofeng Zhao ◽  
Cheng Yuan ◽  
Yungui Chen ◽  
...  
Keyword(s):  
High Performance ◽  
Catalytic Conversion ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A sulfur host based on cobalt–graphitic carbon nanocages for high performance lithium–sulfur batteries

2017 ◽  
Vol 5 (47) ◽  
pp. 24901-24908 ◽  
Author(s):  
Dengji Xiao ◽  
Qian Li ◽  
Huifang Zhang ◽  
Yuanyuan Ma ◽  
Chunxiang Lu ◽  
...  
Keyword(s):  
High Performance ◽  
Graphitic Carbon ◽  
Chemical Adsorption ◽  
Lithium Sulfur Batteries ◽  
Physical Entrapment ◽  
Sulfur Host ◽  
Lithium Sulfur

This work improves the performance of Li–S batteries by providing both the physical entrapment and chemical adsorption of lithium polysulfides by the Co–graphitic nanocages.

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