Facilely Fabricating F-Doped Fe 3 N Nanoellipsoids Grown on 3D N-Doped Porous Carbon Framework as a Preeminent Negative Material

• Published in: Molecules (Basel, Switzerland) Switzerland), 2024-02, Vol.29 (5)
• Main Authors: Zhang, Dan, Zhang, Chunyan, Xu, Huishi, Huo, Zhe, Shi, Xinyu, Liu, Xiaodi, Liu, Guangyin, Yu, Chuang
• Format: Article
• Language: English
• ISSN: 1420-3049
• DOI: 10.3390/molecules29050959

Transition metal nitride negative electrode materials with a high capacity and electronic conduction are still troubled by the large volume change in the discharging procedure and the low lithium ion diffusion rate. Synthesizing the composite material of F-doped Fe N and an N-doped porous carbon framework will overcome the foregoing troubles and effectuate a preeminent electrochemical performance. In this study, we created a simple route to obtain the composite of F-doped Fe N nanoellipsoids and a 3D N-doped porous carbon framework under non-ammonia atmosphere conditions. Integrating the F-doped Fe N nanoellipsoids with an N-doped porous carbon framework can immensely repress the problem of volume expansion but also substantially elevate the lithium ion diffusion rate. When utilized as a negative electrode for lithium-ion batteries, this composite bespeaks a stellar operational life and rate capability, releasing a tempting capacity of 574 mAh g after 550 cycles at 1.0 A g . The results of this study will profoundly promote the evolution and application of transition metal nitrides in batteries.