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
Abstract
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.
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。
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