储能科学与技术 ›› 2018, Vol. 7 ›› Issue (3): 465-470.doi: 10.12028/j.issn.2095-4239.2018.0036

• 新储能体系 • 上一篇    下一篇

柔性锂硫电池的材料设计与实现

闻雷1, 梁骥2, 石颖1, 陈静1, 孙振华1, 吴敏杰1, 李峰1   

  1. 1. 中国科学院金属研究所, 沈阳材料科学国家科学中心, 辽宁 沈阳 110016;
    2. Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, NSW 2522 Australia
  • 收稿日期:2018-03-12 修回日期:2018-04-13 出版日期:2018-05-01 发布日期:2018-04-17
  • 通讯作者: 李峰,研究员,主要研究方向为能源材料及器件,E-mail:fli@imr.ac.cn
  • 作者简介:闻雷(1974-),男,博士,副研究员,主要研究方向为柔性储能器件,E-mail:leiwen@imr.ac.cn
  • 基金资助:
    长续航动力锂电池新材料与新体系研究(2016YFB0100101),国家自然科学基金(51525206,51521091,51372253,U1401243),中国科学院战略性先导项目(XDA09010104)。

Materials design and its implementation for flexible Li-S batteries

WEN Lei1, LIANG Ji2, SHI Ying1, CHEN Jing1, SUN Zhenhua1, WU Minjie1, LI Feng1   

  1. 1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Shenyang 110016, Liaoning, China;
    2. Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, NSW 2522 Australia
  • Received:2018-03-12 Revised:2018-04-13 Online:2018-05-01 Published:2018-04-17

摘要: 随着具有变形功能的移动电子设备的出现和发展,具有更高能量密度的柔性锂硫电池受到越来越多的重视。本文总结了柔性锂硫电池关键材料的发展现状,并对柔性锂硫电池的未来发展方向进行了展望。锂硫电池柔性化的主要难点在于其关键材料的变形设计,通过将硫正极附着于碳纳米管和石墨烯薄膜、聚合物等柔性基底上,利用基底提供变形支撑,能够制备出一体化的复合锂硫电池正极。相对于可变形正极材料,锂金属负极的柔性化具有更大的挑战。未来通过发展新型的锂金属担载材料或采用非金属锂负极,有望实现锂硫电池负极的可变形特征。虽然存在尚待解决的问题很多,柔性锂硫电池经过适当的电化学性能和力学性能改进,将在移动电子领域得到广泛应用。

关键词: 柔性电池, 锂硫电池, 力学特性, 纳米碳材料

Abstract: With the emergence and development of flexible mobile electronic, flexible lithium-sulfur (Li-S) batteries with higher energy density have received more and more attention. In this perspective, we summarize the key materials and current status of flexible Li-S batteries, and presents its future development. The key factors in the flexible Li-S battery lies in the conformal design of its materials. By integrating the positive sulfur electrode to a flexible substrate, such as carbon nanotube membrane, graphene film and polymer, an integrated flexible Li-S composite sulfur electrode can be obtained. In the design, these substrates act as flexible support. Compared with conformal Li-S cathode, the fabrication of flexible lithium metal anode possess greater challenge. By developing new host material for lithium metal or using lithium-free anode, flexible anode materials for Li-S batteries is expected. Although there are many problems to be solved, flexible Li-S batteries with improved electrochemical properties and mechanical properties are anticipated in the field of mobile electronics.

Key words: flexible batteries, Li-S batteries, mechanical properties, carbon nanomaterials

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