高性能锂硫电池用碳硫复合电极设计
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- 英文论文题名：C/S hybrid electrode for high performance Li-S batteries
- 论文作者：李峰 ; 方若翩 ; 周光敏 ; 刘畅 ; 成会明
- 英文论文作者：Feng LI ; Ruopian Fang ; Guangmin Zhou ; Chang Liu ; Hui-ming Cheng ; Institute of Metal Research ; Chinese Academy of Science
- 年：2016
- 作者机构：中国科学院金属研究所;
- 论文关键词：锂硫电池 ; 碳硫复合 ; 石墨烯 ; 碳纳米管
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十九分会：纳米碳材料
- 语种：中文
- 分类号：TM912
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十九分会 ; 纳米碳材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：164k
- 原文格式：D
- 会议级别：全国
摘要
锂硫电池作为一种高效的能源存储器件,具有能量密度高和环境友好等优点,成为下一代高性能二次电池体系代表,而引起了广泛研究兴趣。炭材料,包括碳纳米管和石墨烯,具有大的比表面积、丰富的孔结构和官能团、优异的导电性,与硫复合后,可有效构建三维导电网络,锚定并分散硫元素,控制硫的溶解,缓冲或限域硫在充放电过程中的体积变化,从而获得高性能电极材料~1。以纳米炭材料为基础,从纳米炭导电网络的构建和限域效应出发~(2,3),并从电池整体结构和器件角度考虑~4,进行高面密度和担载量的纳米碳硫复合正极的设计~(5,6),并获得高能量密度、快速充放电性能及良好循环稳定性硫/碳质复合正极材料。
Sulfur cathode materials with multi-electrons reaction are potential high energy electrode materials. However, the sulfur impedes the application as its low electrical conductivity, poor structural stability and low cycle life during discharge/charge. Carbon materials have large surface area, high electrical conductivity, rich porosity. We designed and developed high-performance sulfur/carbon hybrid cathode materials by confining sulfur in micropores, surface active sites and integrated electrode structure. The results obtained high sulfur loading and content electode with high-capacity, high-power, fast charge/discharge, long life.
Sulfur cathode materials with multi-electrons reaction are potential high energy electrode materials. However, the sulfur impedes the application as its low electrical conductivity, poor structural stability and low cycle life during discharge/charge. Carbon materials have large surface area, high electrical conductivity, rich porosity. We designed and developed high-performance sulfur/carbon hybrid cathode materials by confining sulfur in micropores, surface active sites and integrated electrode structure. The results obtained high sulfur loading and content electode with high-capacity, high-power, fast charge/discharge, long life.
引文
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[2]Wang,D.W.;Zhou,G.M.;Li,F;Wu,K.S.,et al,Physical Chemistry Chemical Physics,2012,14,8703
[3]Zhou,G.M.;Yin,L.Y.;Wang,D.W.;Li,L;et al,ACS Nano,2013,7,5367.
[4]Zhou,G.M.;Pei,S.F.;Li,L;Wang,D.W.;et al.Advanced Materials,2014,26,625
[5]Hu,G.J.;Xu,C.;Sun,Z.H.;Wang,S.G.;et al,Advanced Materials,28(8):1603-1609(2016)
[6]Fang,R.P.;Zhao,S.Y.;Hou,P.X.;Cheng,M.;et al,Advanced Materials 10.1002/adma.201506014