2D MXene nanosheets enable small-sulfur electrodes to be flexible for lithium–sulfur batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (17) ◽  
pp. 8442-8448 ◽  
Author(s):  
Qian Zhao ◽  
Qizhen Zhu ◽  
Jiawei Miao ◽  
Peng Zhang ◽  
Bin Xu
Keyword(s):  
Rate Performance ◽  
Lithium Sulfur Batteries ◽  
Sulfur Electrode ◽  
Lithium Sulfur

A flexible small-sulfur electrode with MXene as a conductive binder and flexible backbone is constructed combining good flexibility, stable cycling and good rate performance.

Boosting Rate Performance of Li–S Batteries under High-Mass-Loading Sulfur based on Hierarchical NCNT@Co-CoP Nanowires Integrated Electrode

2021 ◽  
Author(s):  
Jianbo Li ◽  
Wenfu Xie ◽  
Shimeng Zhang ◽  
Simin Xu ◽  
Mingfei Shao
Keyword(s):  
Storage Systems ◽  
High Mass ◽  
Mass Loading ◽  
Rate Performance ◽  
Next Generation ◽  
Practical Application ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Lithium−sulfur batteries (Li–S) has been gradual becoming one of the most promising next-generation storage systems, but its practical application is still limited by the extremely low S loading as well...

scholarly journals Co-W Bimetallic Carbides as Sulfur Host for High-Performance Lithium–Sulfur Batteries

2021 ◽  
Author(s):  
Dongke Zhang ◽  
Ting Huang ◽  
Pengfei Zhao ◽  
Ze Zhang ◽  
Xingtao Qi ◽  
...  
Keyword(s):  
High Performance ◽  
Conductive Network ◽  
Rate Performance ◽  
Cycle Stability ◽  
Sulfur Cathode ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Lithium Sulfur ◽  
Excellent Stability

Abstract Due to the low conductivity of sulfur and the dissolution of polysulfides, the research and application of lithium-sulfur (Li-S) batteries have encountered certain resistance. Increasing conductivity and introducing polarity into the sulfur host can effectively overcome these long-standing problems. Herein, We first prepared Co3W3C@ C@ CNTs / S material and used it in the cathode of lithium-sulfur batteries, The existence of carboxylated CNTs can form a conductive network, accelerate the transmission of electrons and improve the rate performance, and polar Co3W3C can form a strong interaction with polysulfide intermediates, effectively inhibiting its shuttle effect, improving the utilization of sulfur cathode electrodes, and improving the capacity and cycle stability. The Co3W3C@C@CNTs / S electrode material has a capacity of 1,093 mA h g-1 at a 0.1 A g− 1 and 482 mA h g-1 at 5 A g− 1. Even after 500 cycles of 2 A g− 1, the capacity of each cycle is only reduced by 0.08%. The excellent stability of this material can provide a new idea for the future development of lithium-sulfur batteries.

Polymer lithium–sulfur batteries with a Nafion membrane and an advanced sulfur electrode

2015 ◽  
Vol 3 (30) ◽  
pp. 15683-15691 ◽  
Author(s):  
Xingwen Yu ◽  
Jorphin Joseph ◽  
Arumugam Manthiram
Keyword(s):  
Liquid Electrolyte ◽  
Nafion Membrane ◽  
Battery System ◽  
Lithium Sulfur Batteries ◽  
Lithiated Nafion ◽  
Sulfur Electrode ◽  
Lithium Sulfur ◽  
Polysulfide Shuttle

A non-porous, cation-selective, lithiated Nafion membrane effectively suppresses the polysulfide-shuttle. The Li–S battery system with the lithiated Nafion membrane exhibits significantly enhanced cyclability compared to the cells with the traditional liquid-electrolyte integrated porous separator.

scholarly journals Three-dimensional image based modelling of transport parameters in lithium–sulfur batteries

2019 ◽  
Vol 21 (8) ◽  
pp. 4145-4154 ◽  
Author(s):  
Chun Tan ◽  
Matthew D. R. Kok ◽  
Sohrab R. Daemi ◽  
Daniel J. L. Brett ◽  
Paul R. Shearing
Keyword(s):  
Computed Tomography ◽  
Electrical Conductivity ◽  
Three Dimensional ◽  
Transport Parameters ◽  
X Ray ◽  
Dimensional Image ◽  
Molecular Diffusivity ◽  
Lithium Sulfur Batteries ◽  
Sulfur Electrode ◽  
Lithium Sulfur

A sulfur electrode was imaged with X-ray micro and nano computed tomography for the modelling of effective molecular diffusivity and electrical conductivity through flux based simulations.

Self-assembled CdS quantum dots in carbon nanotubes: induced polysulfide trapping and redox kinetics enhancement for improved lithium–sulfur battery performance

2019 ◽  
Vol 7 (2) ◽  
pp. 806-815 ◽  
Author(s):  
Dong Cai ◽  
Lili Wang ◽  
La Li ◽  
Yupu Zhang ◽  
Junzhi Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Rate Performance ◽  
Cds Quantum Dots ◽  
Redox Kinetics ◽  
Lithium Sulfur Batteries ◽  
Cds Qds ◽  
Self Assembled ◽  
Sulfur Battery ◽  
Lithium Sulfur

Self-assembled CdS-QDs in carbon nanotubes are highly efficient cathode materials for lithium–sulfur batteries with improved rate performance and cycle life. The configuration suppresses polysulfide shuttling and enhances redox kinetics.

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