scholarly journals Sepiolite/CNT/S@PANI composite with stable network structure for high performance lithium sulfur batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 17950-17957 ◽  
Author(s):  
Guolong Yuan ◽  
Junan Pan ◽  
Yaguang Zhang ◽  
Junxi Yu ◽  
Yanjia He ◽  
...  
Keyword(s):  
Network Structure ◽  
High Performance ◽  
Conductive Polymer ◽  
Chemical Oxidation ◽  
Vacuum Heat Treatment ◽  
Oxidation Method ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
Stable Network ◽  
Lithium Sulfur

The cathode composite materials for lithium sulfur batteries with a stable network structure consisting of natural sepiolite powders, carbon nanotubes and conductive polymer were synthesized by vacuum heat treatment and chemical oxidation method.

C–S@PANI composite with a polymer spherical network structure for high performance lithium–sulfur batteries

2016 ◽  
Vol 18 (1) ◽  
pp. 261-266 ◽  
Author(s):  
Junkai Wang ◽  
Kaiqiang Yue ◽  
Xiaodan Zhu ◽  
Kang L. Wang ◽  
Lianfeng Duan
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
3D Structure ◽  
Conductive Polymer ◽  
Cycling Performance ◽  
High Specific Capacity ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
And Migration ◽  
Lithium Sulfur

C–S@PANI composite with conductive polymer spherical network was synthesized. Its 3D structure inhibits the dissolution and migration of polysulfides into electrolyte, delivering high specific capacity and a stable cycling performance.

scholarly journals Effect of Polyaniline on Sulfur/Sepiolite Composite Cathode for Lithium-Sulfur Batteries

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 755
Author(s):  
Kalaiselvi Chelladurai ◽  
Priyanka Venkatachalam ◽  
Subadevi Rengapillai ◽  
Wei-Ren Liu ◽  
Chia-Hung Huang ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Conductive Polymer ◽  
Composite Cathode ◽  
Active Mass ◽  
Pinning Effect ◽  
Initial Discharge ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
Stable Network ◽  
Lithium Sulfur

Composite materials with a stable network structure consisting of natural sepiolite (Sp) powders (both sieved sepiolite and post-treated sepiolite), sulfur(S), and conductive polymer Polyaniline (PAni) have been successfully synthesized using a simple heat treatment. The morphology of composites illustrates that the sepiolite is composed of many needle-like fibrous clusters. The initial discharge capacity of the post-treated sepiolite/sulfur/PAni composite is about 1230 mA h g−1 at 0.1 C, and it remains at 826 mA h g−1 even after 40 cycles with the corresponding coulombic efficiency above 97%. Such performance is attributed to the specific porous structure, outstanding adsorption characteristics, and excellent ion exchange capability of sepiolite, as well as the excellent conductivity of PAni. In addition, the PAni coating has a pinning effect on sulfur, which influences the consumption of the active mass and enhances the cycling constancy and the coulombic efficiency of the composite material at elevated current rates.

Sandwich-type porous carbon/sulfur/polyaniline composite as cathode material for high-performance lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104591-104596 ◽  
Author(s):  
Yakun Bu ◽  
Jing Wu ◽  
Xiaotao Zhao ◽  
Kui Ding ◽  
Qin Liu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
Sandwich Type ◽  
Lithium Sulfur ◽  
Sulfur Nanoparticles

Sandwich-type porous carbon/sulfur/polyaniline (SPC–S–PANI) composite with active sulfur nanoparticles confined within porous carbon is prepared.

Shape-controlled MnO2 as a sulfur host for high performance lithium–sulfur batteries

2020 ◽  
Vol 44 (26) ◽  
pp. 11365-11372
Author(s):  
You Ge ◽  
Ping Chen ◽  
Wenjing Zhang ◽  
Qi Shan ◽  
Yanan Fang ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Network Structure ◽  
High Performance ◽  
Three Dimensional ◽  
Porous Network ◽  
Lithium Sulfur Batteries ◽  
One Step ◽  
Sulfur Host ◽  
Shape Controlled ◽  
Lithium Sulfur

The three-dimensional porous network structure self-assembled from birnessite-type MnO2 flakes and urchin-like structure composed of MnO2 nanotubes was fabricated by a convenient one-step hydrothermal method as the sulfur scaffold for high performance lithium–sulfur batteries.

Ionically cross-linked PEDOT:PSS as a multi-functional conductive binder for high-performance lithium–sulfur batteries

2018 ◽  
Vol 2 (7) ◽  
pp. 1574-1581 ◽  
Author(s):  
Longlong Yan ◽  
Xiguang Gao ◽  
Joseph Palathinkal Thomas ◽  
Jenner Ngai ◽  
Haig Altounian ◽  
...  
Keyword(s):  
High Performance ◽  
Conductive Polymer ◽  
Cycling Stability ◽  
Battery Capacity ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Mg2+ cross-linked conductive polymer PEDOT:PSS is used as a cathode binder to improve the Li–S battery capacity and cycling stability.

Sulfur quantum dots wrapped by conductive polymer shell with internal void spaces for high-performance lithium–sulfur batteries

2015 ◽  
Vol 3 (7) ◽  
pp. 4049-4057 ◽  
Author(s):  
Ling Huang ◽  
Jianli Cheng ◽  
Xiaodong Li ◽  
Demao Yuan ◽  
Wei Ni ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Conductive Polymer ◽  
Precipitation Method ◽  
Core Shell ◽  
Polymer Shell ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Novel core–shell sulfur quantum dots/PVK nanocomposites were synthesized by a facile two-step dissolution–precipitation method.

Bifunctional semi-closed YF3-doped 1D carbon nanofibers with 3D porous network structure including fluorinating interphases and polysulfide confinement for lithium–sulfur batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (44) ◽  
pp. 21324-21339 ◽  
Author(s):  
Yan Hao ◽  
Liyuan Wang ◽  
Yueyao Liang ◽  
Benqiao He ◽  
Yaofang Zhang ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Network Structure ◽  
High Performance ◽  
Porous Network ◽  
Porous Networks ◽  
Lithium Sulfur Batteries ◽  
First Time ◽  
Lithium Sulfur

In this study, semi-closed YF3-doped 1D carbon nanofibers with 3D porous networks (SC-YF3-doped 3D in 1D CNFs) are fabricated for the first time via electro-blown spinning technology and regarded as cathodes for high performance lithium sulfur cells.

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...

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