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.

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.

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

SiO2@MoS2 core–shell nanocomposite layers with high lithium ion diffusion as a triple polysulfide shield for high performance lithium–sulfur batteries

2019 ◽  
Vol 7 (13) ◽  
pp. 7644-7653 ◽  
Author(s):  
Jingyi Wu ◽  
Na You ◽  
Xiongwei Li ◽  
Hongxia Zeng ◽  
Shuai Li ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
High Performance ◽  
Lithium Ion ◽  
Core Shell ◽  
Ion Diffusion ◽  
Lithium Sulfur Batteries ◽  
Lithium Ion Diffusion ◽  
Lithium Sulfur

The synergistic effect of the SiO2@MoS2 core–shell nanocomposite simultaneously facilitates Li+ diffusion and provides triple confinement of polysulfides.

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.

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 MnO2-Coated Dual Core–Shell Spindle-Like Nanorods for Improved Capacity Retention of Lithium–Sulfur Batteries

2020 ◽  
Vol 4 (2) ◽  
pp. 42 ◽  
Author(s):  
Hamza Dunya ◽  
Maziar Ashuri ◽  
Dana Alramahi ◽  
Zheng Yue ◽  
Kamil Kucuk ◽  
...  
Keyword(s):  
High Performance ◽  
Synergistic Effects ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Core Shell ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Dual Core ◽  
Lithium Sulfur

The emerging need for high-performance lithium–sulfur batteries has motivated many researchers to investigate different designs. However, the polysulfide shuttle effect, which is the result of dissolution of many intermediate polysulfides in electrolyte, has still remained unsolved. In this study, we have designed a sulfur-filled dual core–shell spindle-like nanorod structure coated with manganese oxide (S@HCNR@MnO2) to achieve a high-performance cathode for lithium–sulfur batteries. The cathode showed an initial discharge capacity of 1661 mA h g−1 with 80% retention of capacity over 70 cycles at a 0.2C rate. Furthermore, compared with the nanorods without any coating (S@HCNR), the MnO2-coated material displayed superior rate capability, cycling stability, and Coulombic efficiency. The synergistic effects of the nitrogen-doped hollow carbon host and the MnO2 second shell are responsible for the improved electrochemical performance of this nanostructure.

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