Electrochemical Performance of Sulfur-Loaded Cathodes Based on Reduced Graphene Oxide-Filled Wood-Derived Carbon Skeletons

ZHOU Zhengye; YAN Yinglin; CAO Tuotuo; YANG Rong; HOU Liang; KANG Yuxiang; XIA Huifan; LU Hongyu

doi:10.11949/0438-1157.20260587

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Electrochemical Performance of Sulfur-Loaded Cathodes Based on Reduced Graphene Oxide-Filled Wood-Derived Carbon Skeletons

更新时间：2026-06-24

- Electrochemical Performance of Sulfur-Loaded Cathodes Based on Reduced Graphene Oxide-Filled Wood-Derived Carbon Skeletons
- CIESC Journal (2026)
- 作者机构：
  
  1.西安理工大学生态环境与化工学院，陕西西安 710054
  2.西安理工大学材料科学与工程学院，陕西西安 710048
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260587
  CLC： TQ152
- Received：25 April 2026，
  
  Revised：2026-06-24，
  
  Accepted：24 June 2026，
- 稿件说明：
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ZHOU Zhengye, YAN Yinglin, CAO Tuotuo, et al. Electrochemical Performance of Sulfur-Loaded Cathodes Based on Reduced Graphene Oxide-Filled Wood-Derived Carbon Skeletons[J/OL]. CIESC Journal, 2026.
DOI：

ZHOU Zhengye, YAN Yinglin, CAO Tuotuo, et al. Electrochemical Performance of Sulfur-Loaded Cathodes Based on Reduced Graphene Oxide-Filled Wood-Derived Carbon Skeletons[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260587.

摘要

椴木基碳骨架与单质硫复合作为自支撑正极，其有序多孔结构能够有效提升能量密度，但对硫及多硫化锂的限域能力不足。通过在孔道中填充还原氧化石墨烯进行改性，显著提升了椴木基碳骨架的比表面积与导电性，同时利用其表面极性官能团增强对多硫化锂的化学吸附，进而稳定电极结构，提升电化学性能。改性后的椴木基复合材料在0.1倍电流密度下的首周放电比容量为1077.1 mAh/g，循环100周后仍能保持983.7 mAh/g的可逆容量，保持率为91.3%。

Abstract

A self-supporting cathode was prepared by combining sulfur with a linden-derived carbon skeleton. The ordered porous structure of this carbon skeleton helps to increase energy density. However

it has limited ability to confine sulfur or lithium polysulfides. To address this issue

reduced graphene oxide was introduced into the pores of the carbon skeleton. This modification significantly improved the specific surface area and electrical conductivity of the carbon skeleton. Moreover

the polar functional groups on the reduced graphene oxide surface enhance the chemical adsorption of lithium polysulfides. This helps stabilize the electrode structure and improve electrochemical performance. The modified linden-derived composite achieved an initial discharge capacity of 1077.1 mAh/g at 0.1C. After 100 cycles

it still retained a reversible capacity of 983.7 mAh/g

with a capacity retention of 91.3%.

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references

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