查找使用阿拉丁产品的科研文献

In situ FeF3 coating on FeNCN to stabilize discharged products Fe0 for enhanced loading and high-rate Na storage performance

Jiayin Li,Wen Wen,Shuzhuo Bai,Jing Zhang,Chenyu Wu,Jintao Wu,QingQing Huang,Yalin Zhang,Chunyi Cai,Liyun Cao,Yijun Liu,Haibo Zhang,Hua Tan,Jianfeng Huang

The instability of the interfacial structure during the synthesis of iron carbodiimide (FeNCN) leads to a decline in its electrochemical performance during cycling. By depositing FeF 3 particles on the surface of FeNCN, the in-situ transformation of this FeF 3 nanolayer into a FeF 2 nanolayer effectively utilizes the discharge product Fe 0 . This process constructs a mechanically stable sandwich-structured SEI film, thereby enhancing the stability of the FeNCN electrode interface. Consequently, the FeNCN electrode exhibits a capacity of 350.54 mAh g −1 after 2000 cycles at 2 A g −1 , with a capacity retention rate of 99.54 %. This strategy provides crucial theoretical and technical insights for regulating carbodiimide-based materials to achieve stable, long-cycle performance in electrode materials.