Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries

Deqing He; Zihao Xie; Qian Yang; Wei Wang; Chao Su

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Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries

Updated：2026-01-06

- Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries
- Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries
- 中国化学工程学报（英文版） 2024年67卷第3期页码：58-67
- Affiliations：
  
  1. School of Energy and Power, Jiangsu University of Science and Technology,Zhenjiang,China,212100
  2. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University,Nanjing,China,211816
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2024
- Accepted：
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Deqing He, Zihao Xie, Qian Yang, 等. Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries[J]. 中国化学工程学报（英文版）, 2024,67(3):58-67.

Deqing He, Zihao Xie, Qian Yang, Wei Wang, Chao Su. Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries[J]. Chinese Journal of Chemical Engineering, 2024, 67(3): 58-67.
Deqing He, Zihao Xie, Qian Yang, 等. Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries[J]. 中国化学工程学报（英文版）, 2024,67(3):58-67. DOI：

Deqing He, Zihao Xie, Qian Yang, Wei Wang, Chao Su. Tungsten oxide/nitrogen-doped carbon nanotubes composite catalysts for enhanced redox kinetics in lithium-sulfur batteries[J]. Chinese Journal of Chemical Engineering, 2024, 67(3): 58-67. DOI：

摘要

Abstract

The sluggish redox kinetics of polysulfides in lithiumesulfur (LieS) batteries are a significant obstacle to their widespread adoption as energy storage devices. However

recent studies have shown that tungsten oxide (WO

) can facilitate the conversion kinetics of polysulfides in LieS batteries. Herein

we fabricated host materials for sulfur using nitrogen-doped carbon nanotubes (N-CNTs) and WO

. We used low-cost components and simple procedures to overcome the poor electrical conductivity that is a disadvantage of metal oxides. The composites of WO

and N-CNTs (WO

/N-CNTs) create a stable framework structure

fast ion diffusion channels

and a 3D electron transport network during electrochemical reaction processes. As a result

the WO

/N-CNT-Li

cathode demonstrates high initial capacity (1162 mA·h·g

-1

at≥0.5 C)

excellent rate performance (618 mA·h·g

-1

at 5.5 C)

and a low capacity decay rate (0.093% up to 600 cycles at 2 C). This work presents a novel approach for preparing tungsten oxide/carbon composite catalysts that facilitate the redox kinetics of polysulfide conversion.

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