scholarly journals Improved Cyclability of Liquid Electrolyte Lithium/Sulfur Batteries by Optimizing Electrolyte/Sulfur Ratio

Energies ◽  
2012 ◽  
Vol 5 (12) ◽  
pp. 5190-5197 ◽  
Author(s):  
Sheng Zhang
Keyword(s):  
Liquid Electrolyte ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

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.

Self-discharge characteristics of lithium/sulfur batteries using TEGDME liquid electrolyte

2006 ◽  
Vol 52 (4) ◽  
pp. 1563-1566 ◽  
Author(s):  
H.S. Ryu ◽  
H.J. Ahn ◽  
K.W. Kim ◽  
J.H. Ahn ◽  
K.K. Cho ◽  
...  
Keyword(s):  
Liquid Electrolyte ◽  
Discharge Characteristics ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Lithium-Sulfur Batteries Based on Nitrogen-Doped Carbon and an Ionic-Liquid Electrolyte

ChemSusChem ◽  
2012 ◽  
Vol 5 (10) ◽  
pp. 2079-2085 ◽  
Author(s):  
Xiao-Guang Sun ◽  
Xiqing Wang ◽  
Richard T. Mayes ◽  
Sheng Dai
Keyword(s):  
Ionic Liquid ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte ◽  
Nitrogen Doped ◽  
Lithium Sulfur Batteries ◽  
Nitrogen Doped Carbon ◽  
Lithium Sulfur

The Enhanced Electrochemical Performance of Lithium/Sulfur Battery with Protected Lithium Anode

2012 ◽  
Vol 476-478 ◽  
pp. 676-680 ◽  
Author(s):  
Ming Sen Zheng ◽  
Jia Jia Chen ◽  
Quan Feng Dong
Keyword(s):  
Electrochemical Performance ◽  
Liquid Electrolyte ◽  
Discharge Performance ◽  
Lithium Sulfur Batteries ◽  
Unit Cells ◽  
Protection Layer ◽  
Sulfur Battery ◽  
Enhanced Electrochemical Performance ◽  
Lithium Sulfur ◽  
Charge Discharge

The protection layer was introduced to the surface of the Li anode to enhance the charge/discharge performance of lithium/sulfur batteries. The Pt protection layer was formed by magnetron sputtering method. When the Li anode is coated with the protection layer, the unit cells with a liquid electrolyte showed an enhanced charge/discharge performance, resulting in an average discharge capacity of 750mAh/g during 90 cycles. All the charge/discharge tests were performed at room temperatures.

The Significance of Elemental Sulfur Dissolution in Liquid Electrolyte Lithium Sulfur Batteries

2016 ◽  
Vol 7 (3) ◽  
pp. 1601635 ◽  
Author(s):  
Peter Paul R. M. L. Harks ◽  
Carla B. Robledo ◽  
Tomas W. Verhallen ◽  
Peter H. L. Notten ◽  
Fokko M. Mulder
Keyword(s):  
Elemental Sulfur ◽  
Liquid Electrolyte ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Solvate ionic liquid electrolyte with 1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl ether as a support solvent for advanced lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 18186-18190 ◽  
Author(s):  
Hai Lu ◽  
Yan Yuan ◽  
Zhenzhong Hou ◽  
Yanqing Lai ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Electrolyte ◽  
Cell Performance ◽  
Lithium Sulfur Battery ◽  
Ionic Liquid Electrolyte ◽  
Lithium Sulfur Batteries ◽  
Sulfur Battery ◽  
Fluorinated Ether ◽  
Lithium Sulfur

1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl ether (TFTFE) was used as a support solvent of solvate ionic liquid (SIL) for lithium-sulfur battery. The fluorinated ether improves the cell performance remarkably.

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.

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