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加压物理活性炭:一种面向锂硫电池应用的高性能、经济型的正极载体材料

李明昊 王章骁 高红叶 波多聪 中林康治 尹圣昊 宫胁仁

新型炭材料(中英文)2026,Vol.41Issue(1):127-141,15.
新型炭材料(中英文)2026,Vol.41Issue(1):127-141,15.DOI:10.1016/S1872-5805(25)61035-3

加压物理活性炭:一种面向锂硫电池应用的高性能、经济型的正极载体材料

Pressurized physically activated carbon used as a high-performance,low cost cathode material in lithium-sulfur batteries

李明昊 1王章骁 1高红叶 2波多聪 3中林康治 4尹圣昊 4宫胁仁4

作者信息

  • 1. 九州大学,综合理工学府,福冈 春日,816-8580 日本
  • 2. 九州大学,超显微解析研究中心,福冈 西区,819-0395 日本
  • 3. 九州大学,综合理工学府,福冈 春日,816-8580 日本||九州大学,超显微解析研究中心,福冈 西区,819-0395 日本||九州大学,综合理工学研究院,福冈 春日,816-8580 日本
  • 4. 九州大学,综合理工学府,福冈 春日,816-8580 日本||九州大学,先导物质研究所,福冈 春日,816-8580 日本
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摘要

Abstract

Lithium-sulfur(Li-S)batteries are prom-ising candidates for next-generation energy storage given their high energy density and potential low cost.Chemically activated carbon(CAC)is often used for their cathodes,because it has a high specific surface area for sulfur loading.We have developed a pressur-ized physical activation(PPA)method that produced an activated carbon(PPAC)with a high specific sur-face area comparable to that of CAC.The pore structure of PPAC could be changed and its use as a cathode material for Li-S batteries was investigated.Battery tests at different capacity rates(C-rates)showed that it had a much improved high-rate per-formance with a discharge capacity of 900 mAh/(g of sulfur)at 1 C,in contrast to only 600 mAh/(g of sulfur)for CAC.Pore structure analyses showed that PPAC prepared at a high activation temperature(1000 ℃)had unusual channel-like mesopores between the microdomains that are the basic structural units of artificial carbon materials.These are connected to micropores developed in each microdomain,and deliver ions from the surroundings to the internal pores and vice versa.The well-de-veloped micropores and mesopores of PPAC respectively ensured the high adsorption of lithium polysulfides and a high rate of ion diffusion.Compared to CAC,PPAC is a high-performance,low-cost cathode material that is promising for use in future Li-S batteries.

关键词

活性炭/加压物理活化/介孔通道/锂硫电池/微域

Key words

Activated carbon/Pressurized physical activation/Mesoporous channel/Lithium-sulfur batteries/Microdo-main

引用本文复制引用

李明昊,王章骁,高红叶,波多聪,中林康治,尹圣昊,宫胁仁..加压物理活性炭:一种面向锂硫电池应用的高性能、经济型的正极载体材料[J].新型炭材料(中英文),2026,41(1):127-141,15.

基金项目

This work was supported by JST SPRING,Grant Number JPMJSP2136.The authors thank ASAHI YUKIZAI CORPORATION for providing spherical phenol resins.日本科学技术振兴机构(JST)SPRING(JPMJSP2136). (JST)

新型炭材料(中英文)

1007-8827

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