收藏本站
收藏 | 投稿 | 手机打开
二维码
手机客户端打开本文

A multi-layered Ti_3C_2/Li_2S composite as cathode material for advanced lithium-sulfur batteries

Xin Liang  Jufeng Yun  Kun Xu  Hongfa Xiang  Yong Wang  Yi Sun  Yan Yu  
【摘要】:Lithium-sulfur(Li-S) batteries with lithium sulfide(Li_2 S) as cathode have attracted great attention recently,because of high specific capacity(1166 mA h g~(-1)) of Li_2 S and potential safety of using Li metal-free anode.Li_2 S cathode has lower volume expansion and higher thermal stability than the traditional sulfur cathode.However,the problems of "shuttle effect" and poor electrical conductivity of the cathode material still need to be overcome.In this work,multi-layered Ti_3 C_2/Li_2 S(ML-Ti_3 C_2/Li_2 S) composite has been prepared and applied as a cathode in advanced Li-S batteries.The unique multi-layer sheet structure of Ti_3 C_2 provides space for the storage of Li_2 S,and its good conductivity greatly enhances the usage ratio of Li_2 S and improves the conductivity of the whole Li_2 S cathode.Compared with commonly used graphene,ML-Ti_3 C_2 can trap polysulfides effectively by chemical adsorption and also activate the reaction of Li_2 S to polysulfides by forming Ti-S bond.As a result,during the cycling of the batteries with ML-Ti_3 C_2/Li_2 S cathodes,the activation voltage barrier of the first cycle has decreased to 2.8 V,and the "shuttle effect" has been suppressed effectively.The cycling and rate performances of the ML-Ti_3 C_2/Li_2 S cathodes have been significantly improved compared to that of graphene/Li_2 S cathodes.They maintain a capacity of 450 mAh g~(-1) at 0.2 C after 100 cycles,and deliver attractive rate performances of 750,630,540,470 and 360 mAh g~(-1) at 0.1 C,0.2 C,0.5 C,1 C,and 2 C,respectively.

知网文化
【相似文献】
中国期刊全文数据库 前18条
1 ;Structure and electrochemical properties of La, F dual-doped LiLa_(0.01)Mn_(1.99)O_(3.99)F_(0.01) cathode materials[J];Journal of University of Science and Technology Beijing;2008年04期
2 Zhen-Dong Yang;Zhi-Wen Chang;Qi Zhang;Keke Huang;Xin-Bo Zhang;;Decorating carbon nanofibers with Mo_2C nanoparticles towards hierarchically porous and highly catalytic cathode for high-performance Li-O_2 batteries[J];Science Bulletin;2018年07期
3 ;Effects of different iron sources on the performance of LiFePO_4/C composite cathode materials[J];Journal of University of Science and Technology Beijing;2008年06期
4 吕晓军;李劼;赖延清;方钊;;Effect of baking processes on properties of TiB_2/C composite cathode material[J];Journal of Central South University of Technology;2009年03期
5 ;A new candidate as the cathode material for intermediate and low temperature SOFCs[J];Rare Metals;2006年S1期
6 ;Solid-state synthesis and electrochemical properties of SmVO_4 cathode materials for low temperature SOFCs[J];Rare Metals;2006年S1期
7 ;Microstructure and properties of a Mo-CeO_2 heated cathode material[J];Rare Metals;2004年03期
8 Jialing Wu;Junmei Chen;Yang Huang;Kun Feng;Jun Deng;Wei Huang;Yunling Wu;Jun Zhong;Yanguang Li;;Cobalt atoms dispersed on hierarchical carbon nitride support as the cathode electrocatalyst for high-performance lithium-polysulfide batteries[J];Science Bulletin;2019年24期
9 Zhen-Dong Yang;Zhi-Wen Chang;Ji-Jing Xu;Xiao-Yang Yang;Xin-Bo Zhang;;CeO_2@NiCo_2O_4 nanowire arrays on carbon textiles as high performance cathode for Li-O_2 batteries[J];Science China(Chemistry);2017年12期
10 ;Post-treatment method for improving field emission from carbon nanotubes/nanofibers[J];Optoelectronics Letters;2006年04期
11 Xin Li;Yu Zhi Jiang;Xi Kun Li;Hai Xia Jiang;Jun Long Liu;Jun Feng;Shi Bin Lin;Xin Guan;;Electrochemical property of LiFePO_4/C composite cathode with different carbon sources[J];Rare Metals;2018年09期
12 ;Synthesis and performance of Li_3V_2(PO_4)_3/C composites as cathode materials[J];Rare Metals;2008年06期
13 Jing Li;Chen Zhang;Cheng-Jun Wu;Ying Tao;Lei Zhang;Quan-Hong Yang;;Improved performance of Li-Se battery based on a novel dual functional CNTs@graphene/CNTs cathode construction[J];Rare Metals;2017年05期
14 Yanbiao Ren;Shuang Zhao;Honglei Li;Shichao Zhang;Jian Liu;Yao Xiao;;Facile fabrication of hierarchical porous Co_3O_4 nanoarrays as a free-standing cathode for lithium–oxygen batteries[J];Journal of Energy Chemistry;2019年03期
15 李玉魁;李晓荃;刘兴辉;卢文科;;Fabrication Research and Property of Enhanced Petaling Cold Cathode with Carbon Nanotube[J];Journal of Donghua University(English Edition);2013年02期
16 王凤歌;李玉魁;卢文科;;Enhanced Field Emission Performance and Better Emitting Current Stability of Mixed Multilayer Carbon Nanotube Cathode[J];Journal of Donghua University(English Edition);2015年03期
17 陈权启;李小栓;王建明;;Electrochemical performance of LiFePO_4/(C+Fe_2P) composite cathode material synthesized by sol-gel method[J];Journal of Central South University of Technology;2011年04期
18 Aikai Yang;Xingchao Wang;Yong Lu;Licheng Miao;Wei Xie;Jun Chen;;Core-shell structured 1,4-benzoquinone@TiO_2 cathode for lithium batteries[J];Journal of Energy Chemistry;2018年06期
中国重要会议论文全文数据库 前10条
1 Jaekook Kim;;Synthesis of LiMnPO_4 Nanocrystalline Materials[A];Program and Abstract of ICAM Workshop Physics of Novel Energy Materials[C];2010年
2 HE Qing;ZHAO Dong-lin;ZHU Yang-yang;ZHANG Jing-xing;;Singlecrystalline V_2O_5 nanowire/graphene composite as cathode material for lithium-ion batteries[A];第八届中国功能材料及其应用学术会议摘要[C];2013年
3 Xifeng DING;Wenliang Zhu;;Nano-structured composite cathode by infiltration process for solid oxide fuel cells[A];第二届海峡两岸功能材料科技与产业峰会(2015)摘要集[C];2015年
4 Haiyan Gao;Shaofan Mei;Yongnan Zhao;;Synthesis and modification of Li_2FeSiO_4/C composite as cathode material for lithium-ion batteries[A];中国化学会第九届全国无机化学学术会议论文集——L能源材料化学[C];2015年
5 She-huang Wu;Je-Jang Shiu;;Effects of surface modifications on the cycling performance of LiNi_(0.5)Mn_(1.5)O_4 cathode materials[A];中国颗粒学会超微颗粒专委会2013年年会暨第八届海峡两岸超微颗粒学术研讨会论文集[C];2013年
6 Wang Lizhen;Su Dan;Zou Zhenyao;Jiang Qing;Meng Haoyang;;Research on surface modification of lead carbon battery cathode collector[A];河南省化学会2016年学术年会论文摘要集[C];2016年
7 Jie Hou;Zheng Gong;Junyu Zhang;Yusen Wu;Wei Liu;;The effect of Bi-doping on the electrochemical performance of LSM-based cathode materials based on Er_(0.4)Bi_(1.6)O_3 symmetrical cells[A];第二届海峡两岸功能材料科技与产业峰会(2015)摘要集[C];2015年
8 Dan Zhu;Chenkai Sun;Yang Gao;Weihua Chen;Jianmin Zhang;Liwei Mi;;Synthesis of Li_2FeSiO_4/C cathode material by template self sacrifice method[A];第六届中国储能与动力电池及其关键材料学术研讨与技术交流会摘要集[C];2014年
9 Xinyong Tao;;Green Carbon-based Nanomaterials for Energy Storage[A];第二届淮海绿色功能材料论坛暨第四届徐州清洁能源材料论坛·摘要集[C];2017年
10 ;Improvements of Rechargeable Batteries with Nanomaterials and Nanotechnologies[A];纳米材料与技术应用进展——第四届全国纳米材料会议论文集[C];2005年
中国硕士学位论文全文数据库 前1条
1 白晓梦;多孔蜂窝状氮化碳、硫化钴的制备及其在锂硫电池中的应用[D];山东大学;2019年
中国知网广告投放
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978