• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >MoO2@C modified separator as an interlayer for high performance lithium-sulfur batteries
【24h】

MoO2@C modified separator as an interlayer for high performance lithium-sulfur batteries

机译：Moo2 @ C改装的分离器作为高性能锂硫电池的中间层

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lithium-sulfur batteries have attracted much attention as a promising next-generation energy storage system due to their high theoretical specific capacity and energy density. However, lithium-sulfur batteries are still facing some problems that hinder their large-scale commercial application. High conductivity molybdenum dioxide coated with carbon composite (MoO2@C) were introduced to coat the separator to study its application in lithium sulfur batteries. Molybdenum dioxide coated with carbon composite nanoparticles were synthesized by hydrothermal method and high-temperature calcination and then was coated on the separator with acetylene black. The coating layer can take advantage of the synergetic effect of physical barrier and chemical adsorption to reduce the loss of active substances. The electrochemical performance of the battery has been improved by applying MoO2@C in lithium-sulfur separator. The first discharge specific capacity is 917 mA h g(-1) under the current density of 1.0 A g(-1), after 300 cycles, the capacity is 618 mA h g(-1); after 200 cycles under the current density of 2.0 A g(-1), the reversible specific capacity can still maintain 551 mA h g(-1).
机译：锂硫电池由于其较高的理论比容量和能量密度，作为一种很有前途的下一代储能系统而备受关注。然而，锂硫电池仍面临一些问题，阻碍了其大规模商业应用。碳复合材料包覆高导电性二氧化钼(MoO2@C)为了研究隔膜在锂硫电池中的应用，我们引入了涂层。采用水热法和高温煅烧法制备了包覆碳复合纳米颗粒的二氧化钼，并在分离器上包覆乙炔黑。涂层可以利用物理屏障和化学吸附的协同作用，减少活性物质的损失。通过应用，电池的电化学性能得到了改善MoO2@C在锂硫分离器中。在电流密度为1.0ag（-1）的情况下，首次放电比容量为917mahg（-1），300次循环后容量为618mahg（-1）；在电流密度为2.0 A g（-1）的条件下，经过200次循环后，可逆比容量仍能保持551 mA h g（-1）。

著录项

  • 来源
    《Nanotechnology》 |2021年第10期|共11页
  • 作者

    Li Qian; Wang Yasai; Wang Yang; Yang Liwen; Chen Yanxiao; Guo Xiaodong; Wu Zhenguo; Zhong Benhe; Xiang Wei;

  • 作者单位

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Sichuan Univ Sch Chem Engn 24 South Sect 1 Yihuan Rd Chengdu 610065 Peoples R China;

    Chengdu Univ Technol Coll Mat &

    Chem &

    Chem Engn Chengdu 610059 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    lithiumamp; 8211; sulfur battery; MoO2@ carbon; separator; polysulfide; shuttle effect;

    机译：锂离子电池;8211;硫电池;MoO2@碳;分离器;多硫化物;穿梭效应;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号