掺杂 N 的碳纳米管中空间致密的 FeF3 阴极用于锂存储。

IF 4.3 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2024-11-05 DOI:10.1039/d4cc04960h

Jun Li , Xifei Li , Mengyao Li , Qinting Jiang , Junqian Liu , Ruixian Duan , Guiqiang Cao , Jingjing Wang , Wenbin Li

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引用次数: 0

摘要

在此，通过原位热解和气相氟化策略，开发出了一种 N 掺杂碳纳米管封装 FeF3 纳米粒子（FeF3@N-CNTs）的复合材料。三维碳约束支架增强了转化反应动力学，并有效抑制了循环过程中 FeF3 阴极的显著体积变化。因此，FeF3@N-CNTs 表现出卓越的速率能力，在 2 A g-1 的条件下循环 5000 次后仍能保持 110.6 mA h g-1 的高放电容量。这项研究为开发长循环转换型阴极材料提供了一种创新策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Spatially confined FeF3 cathodes in N-doped carbon nanotubes for lithium storage†

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Spatially confined FeF3 cathodes in N-doped carbon nanotubes for lithium storage†

Herein, a N-doped carbon nanotube encapsulated FeF₃ nanoparticle (FeF₃@N-CNTs) composite was developed via in situ pyrolysis and gas-phase fluorination strategies. The 3D carbon constrained scaffold enhances conversion reaction kinetics and effectively suppresses significant volume changes in the FeF₃ cathode during cycling. Consequently, FeF₃@N-CNTs exhibits excellent rate capability and maintains a high discharge capacity of 110.6 mA h g⁻¹ after 5000 cycles at 2 A g⁻¹. It is believed that this study presents an innovative strategy for the development of long-cycling conversion-type cathode materials.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.