Strong Surface Bonding of Polysulfides by Teflonized Carbon Matrix for Enhanced Performance in Room Temperature Sodium‐Sulfur Battery

Vijaya Kumar Saroja Ajay Piriya; Muthusamy Kamaraj; Sundara Ramaprabhu

摘要

Abstract > The practical application of room temperature sodium‐sulfur (Na–S) battery remains far away from the market due to the poor coulombic efficiency and cyclic stability which in turn arises from high dissolution of intermediate polysulfides in carbonate‐based electrolytes, slow reaction kinetics, and low electrical conductivity of sulfur. In this aspect, an advanced cathode structure by incorporating Teflon‐lined conductive carbon substrate (TCS) as a supporting cathode to efficiently immobilize the migration of soluble polysulfides to the anode, as well as enhance the conductivity during the polysulfide conversion, is presented here. After inclusion of TCS, the cell delivers a specific capacity of 800 mAh g ?1 at 0.1C (1C = 1672 mA g ?1 ) with 85% enhancement in specific capacity. Also, a stable cyclic stability of about 300 cycles with an excellent capacity retention of about 93% and coulombic efficiency of nearly 100% is obtained. Teflon, which has a linear carbon chain surrounded completely by fluorine atoms, acts as the anchoring sites for trapping the intermediate sodium polysulfides. This study provides a simple approach of controlling the shuttling effect, which can be beneficial for the development of high energy density room temperature Na–S battery. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 室温钠 - 硫磺（NA-S）电池的实际应用由于库仑效率差和循环稳定性，又出现在碳酸盐基电解质中中间多硫化物的高溶解，慢反应动力学，硫的低电导率。在这方面，通过将Teflon衬里的导电碳基板（TCS）作为支撑阴极，以有效地固定可溶性多硫化物迁移至阳极的先进的阴极结构，以及在此提高多硫化物转化期间的电导率。包含TCS后，该电池提供800 MAH G的特定容量？1 </ sup> 在0.1c（1c = 1672 ma g ？1 </ sup> ）在特定容量中增强85％。而且，获得了约300个循环的稳定循环稳定性，其具有优异的容量保持约为93％，近100％的库仑效率。具有完全由氟原子包围的线性碳链的Teflon作用为捕获中间体钠多硫化物的锚定部位。本研究提供了一种控制穿梭效果的简单方法，这对于高能密度室温Na-S电池的开发可能是有益的。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-18063/'>《Advanced materials interfaces》</a> <b style="margin: 0 2px;">|</b><span>2019年第7期</span><b style="margin: 0 2px;">|</b><span>共9页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vijaya Kumar Saroja Ajay Piriya&option=202" target="_blank" rel="nofollow">Vijaya Kumar Saroja Ajay Piriya;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Muthusamy Kamaraj&option=202" target="_blank" rel="nofollow">Muthusamy Kamaraj;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sundara Ramaprabhu&option=202" target="_blank" rel="nofollow">Sundara Ramaprabhu;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Alternative Energy and Nanotechnology Laboratory (AENL)Indian Institute of Technology MadrasChennai 600036 India;</p> <p>Department of Metallurgical and Materials EngineeringIndian Institute of Technology MadrasChennai 600036 India;</p> <p>Alternative Energy and Nanotechnology Laboratory (AENL)Indian Institute of Technology MadrasChennai 600036 India;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/6960.html" title="特种结构材料">特种结构材料;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=graphene nanoribbon&option=203" rel="nofollow">graphene nanoribbon;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=multiwalled carbon nanotubes&option=203" rel="nofollow">multiwalled carbon nanotubes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=polytetrafluoroethylene&option=203" rel="nofollow">polytetrafluoroethylene;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=room temperature&option=203" rel="nofollow">room temperature;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=sodium&option=203" rel="nofollow">sodium;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=sulfur&option=203" rel="nofollow">sulfur;</a> </p> <div class="translation"> 机译：石墨烯纳米布;多壁碳纳米管;聚四氟乙烯;室温;钠;硫; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022433864.html">Strong Surface Bonding of Polysulfides by Teflonized Carbon Matrix for Enhanced Performance in Room Temperature Sodium‐Sulfur Battery</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vijaya Kumar Saroja Ajay Piriya&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Vijaya Kumar Saroja Ajay Piriya,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Muthusamy Kamaraj&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Muthusamy Kamaraj,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sundara Ramaprabhu&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Sundara Ramaprabhu </a> <a href="/journal-foreign-18063/" target="_blank" rel="nofollow" class="tuijian_authcolor">Advanced materials interfaces .</a> <span>2019</span><span>,第7期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：通过Teflonized碳基团的多硫化物的强表面键合，以提高室温硫磺电池性能</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704019222473.html">Room-Temperature Sodium-Sulfur Batteries with Liquid-Phase Sodium Polysulfide Catholytes and Binder-Free Multiwall Carbon Nanotube Fabric Electrodes</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xingwen Yu&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Xingwen Yu,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Arumugam Manthiram&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Arumugam Manthiram </a> <a href="/journal-foreign-30977/" target="_blank" rel="nofollow" class="tuijian_authcolor">The journal of physical chemistry, C. 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