...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ChemElectroChem >Nitrogen-Deficient Graphitic Carbon Nitride/Carbon Nanotube as Polysulfide Barrier of High-Performance Lithium-Sulfur Batteries
【24h】

Nitrogen-Deficient Graphitic Carbon Nitride/Carbon Nanotube as Polysulfide Barrier of High-Performance Lithium-Sulfur Batteries

机译：氮气缺乏的石墨氮化物/碳纳米管作为高性能锂 - 硫磺电池的多硫化物屏障

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 (Li-S) batteries have been attracting growing interest in the past few years due to their outstanding theoretical energy density, but the lower cycle performance and especially the migration of polysulfides significantly inhibited its applicability. Herein, we propose a novel strategy for trapping lithium polysulfides (LiPSs) by combining nitrogen-deficient graphitic carbon nitride (g-C3N4-x) and carbon nanotubes (CNTs) to form a functional interlayer between the separator and sulfur cathode in Li-S batteries. The defect chemistry present in g-C3N4-x not only improves the chemical affinity toward polysulfides but also catalyzes the polysulfide reactions. Besides, the interwoven scaffold-like CNT network in the g-C3N4-x/CNT composite accelerates the process of electron transfer. Based on this synergistic effect, the cells with g-C3N4-x/CNT-modified separators showed a remarkable discharge capacity of 1128 mAh g(-1) at 0.2 C, and a reversible capacity of 774 mAh g(-1) after 100 cycles, indicating an efficient strategy toward high-performance modified separators.
机译：None

著录项

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