Highly dispersed sulfur in a porous aromatic framework as a cathode for lithium–sulfur batteries

2013 ◽  
Vol 49 (43) ◽  
pp. 4905 ◽  
Author(s):  
Bingkun Guo ◽  
Teng Ben ◽  
Zhonghe Bi ◽  
Gabriel M. Veith ◽  
Xiao-Guang Sun ◽  
...  
Keyword(s):  
Porous Aromatic Framework ◽  
Lithium Sulfur Batteries ◽  
Highly Dispersed ◽  
Lithium Sulfur

Highly Dispersed Catalytic Co3S4 among a Hierarchical Carbon Nanostructure for High-Rate and Long-Life Lithium–Sulfur Batteries

ACS Nano ◽  
2019 ◽  
Vol 13 (4) ◽  
pp. 3982-3991 ◽  
Author(s):  
Hui Zhang ◽  
Mingchu Zou ◽  
Wenqi Zhao ◽  
Yunsong Wang ◽  
Yijun Chen ◽  
...  
Keyword(s):  
High Rate ◽  
Carbon Nanostructure ◽  
Lithium Sulfur Batteries ◽  
Highly Dispersed ◽  
Long Life ◽  
Hierarchical Carbon ◽  
Lithium Sulfur

Excellent Performance of Lithium-Sulfur batteries with Carbonized Porous Aromatic Framework Nanobeads as Support

2016 ◽  
Vol 219 ◽  
pp. 143-151 ◽  
Author(s):  
Wenli Zhai ◽  
Wenlu Tu ◽  
Yang Liu ◽  
Haiyan Gao ◽  
Jianguo Yu ◽  
...  
Keyword(s):  
Excellent Performance ◽  
Porous Aromatic Framework ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Cellulose Separators with Integrated Carbon Nanotube Interlayers for Lithium-Sulfur Batteries: An Investigation into the Complex Interplay Between Cell Components

2019 ◽  
Author(s):  
Yu-Chuan Chien ◽  
Ruijun Pan ◽  
Ming-Tao Lee ◽  
Leif Nyholm ◽  
Daniel Brandell ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Solid Electrolyte Interphase ◽  
Holistic Approach ◽  
Cycle Life ◽  
Complex Interplay ◽  
Positive Electrodes ◽  
Lithium Sulfur Batteries ◽  
Cell Components ◽  
Redox Shuttle ◽  
Lithium Sulfur

This work aims to address two major roadblocks in the development of lithium-sulfur (Li-S) batteries: the inefficient deposition of Li on the metallic Li electrode and the parasitic "polysulfide redox shuttle". These roadblocks are here approached, respectively, by the combination of a cellulose separator with a cathode-facing conductive porous carbon interlayer, based on their previously reported individual benefits. The cellulose separator increases cycle life by 33%, and the interlayer by a further 25%, in test cells with positive electrodes with practically relevant specifications and a relatively low electrolyte/sulfur (E/S) ratio. Despite the prolonged cycle life, the combination of the interlayer and cellulose separator increases the polysulfide shuttle current, leading to reduced Coulombic efficiency. Based on XPS analyses, the latter is ascribed to a change in the composition of the solid electrolyte interphase (SEI) on Li. Meanwhile, electrolyte decomposition is found to be slower in cells with cellulose-based separators, which explains their longer cycle life. These counterintuitive observations demonstrate the complicated interactions between the cell components in the Li-S system and how strategies aiming to mitigate one unwanted process may exacerbate another. This study demonstrates the value of a holistic approach to the development of Li-S chemistry.<br>

Separator modified by Ketjen black for enhanced electrochemical performance of lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 13680-13685 ◽  
Author(s):  
Di Zhao ◽  
Xinye Qian ◽  
Lina Jin ◽  
Xiaolong Yang ◽  
Shanwen Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Side ◽  
Electrochemical Performances ◽  
Lithium Sulfur Batteries ◽  
Enhanced Electrochemical Performance ◽  
Lithium Sulfur

A routine separator modified by a Ketjen black (KB) layer on the cathode side has been investigated to improve the electrochemical performances of Li–S batteries.

scholarly journals A review of biomass materials for advanced lithium–sulfur batteries

2019 ◽  
Vol 10 (32) ◽  
pp. 7484-7495 ◽  
Author(s):  
Huadong Yuan ◽  
Tiefeng Liu ◽  
Yujing Liu ◽  
Jianwei Nai ◽  
Yao Wang ◽  
...  
Keyword(s):  
Recent Progress ◽  
Low Cost ◽  
High Abundance ◽  
Chemical Adsorption ◽  
Environmental Friendliness ◽  
Lithium Sulfur Batteries ◽  
Biomass Materials ◽  
Physical And Chemical ◽  
Lithium Sulfur

This review summarizes recent progress of biomass-derived materials in Li–S batteries. These materials are promising due to their advantages including strong physical and chemical adsorption, high abundance, low cost, and environmental friendliness.

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