化工进展 ›› 2017, Vol. 36 ›› Issue (S1): 311-318.DOI: 10.16085/j.issn.1000-6613.2017-0701

• 材料科学与技术 • 上一篇    下一篇

锂硫电池硫基碳正极材料的研究进展

杨果1, 马壮2, 杨绍斌1, 沈丁1   

  1. 1. 辽宁工程技术大学材料科学与工程学院, 辽宁 阜新 123000;
    2. 辽宁科技学院, 辽宁 本溪 117004
  • 收稿日期:2017-04-20 修回日期:2017-06-17 出版日期:2017-12-31 发布日期:2017-12-13
  • 通讯作者: 杨绍斌,博士,教授,博士生导师,研究方向为电化学储能材料
  • 作者简介:杨果(1993-),男,硕士研究生,研究方向为锂硫电池正极材料。E-mail:1402068074@qq.com。
  • 基金资助:
    国家自然科学基金项目(51274119)。

Research progress of sulfur-based carbon cathode materials in lithium-sulfur batteries

YANG Guo1, MA Zhuang2, YANG Shaobin1, SHEN Ding1   

  1. 1. College of Material Science and Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China;
    2. Liaoning Institute of Science and Technology, Benxi 117004, Liaoning, China
  • Received:2017-04-20 Revised:2017-06-17 Online:2017-12-31 Published:2017-12-13

摘要: 用于锂硫电池的碳质材料具有优异的力学、电学、导热性能,可调的孔结构以及丰富的表面特性,能有效地限制多硫化物的溶解,改善锂硫电池的电化学性能。因此,本文分别从一维碳、二维碳和三维碳这3个方面综述了锂硫电池硫基碳复合正极材料的研究进展,探讨了改性硫基碳正极材料的制备方法和结构设计。分析表明,高比表面积和高孔容积的多孔纳米碳材料对提高锂硫电池电化学性能而言至关重要,并提出用金属硫化物掺杂的有序介孔碳复合材料作为锂硫电池的正极材料能促进锂离子在正负极间的迁移,提高锂硫电池的循环稳定性和活性物质利用率。

关键词: 锂硫电池, 复合材料, 多孔介质, 电化学, 稳定性

Abstract: The carbonaceous material used in lithium-sulfur batteries has excellent mechanical,electrical,thermal conductivity,adjustable pore structure,and rich surface properties,can effectively limit the dissolution of polysulfides to improve the electrochemical performance of lithium-sulfur batteries.In this paper,the research progress of sulfur-sulfur carbon-based composite cathode materials is reviewed from three aspects:one-dimensional carbon,two-dimensional carbon and three-dimensional carbon.The preparation method and structure design of modified sulfur-based carbon cathode materials are discussed.The results show that the porous nano-carbon with high specific surface area and high pore volume is very important to improve the electrochemical performance of lithium-sulfur battery,and the ordered mesoporous carbon composites doped with metal sulfide are proposed as lithium-sulfur.The cathode material can promote the migration of lithium ions between positive and negative electrodes,improve the cycle stability of lithium-sulfur batteries and active material utilization.

Key words: lithium-sulfur battery, composites, porous media, electrochemistry, stability

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