Co 3 O 4 -Induced Na 2 CO 3 -Rich SEI Film on an FeNCN Electrode with Promoted Loading and High-Rate Na-Storage Performance

作者：Shuzhuo Bai, Jiayin Li, Qingqing Huang, Chenyu Wu, Wen Wen, Jintao Wu, Yalin Zhang, Chunyi Cai, Haotian Fan, Liyun Cao, Yongheng Zhao, Hong Yang, Jianfeng Huang · 发表于：Nano Letters · 年份：2024 · DOI：10.1021/acs.nanolett.4c03570 · 被引用次数：7 · 研究领域：Advancements in Battery Materials、Supercapacitor Materials and Fabrication、Nanomaterials for catalytic reactions

Iron carbodiimide (FeNCN) often suffers from unstable interfacial structure with an unexpected failure of Na-ion storage performance. In this work, Co 3 O 4 particles were deposited on the surface of FeNCN. This Co 3 O 4 nanolayer led to the formation of a Na 2 CO 3 -rich inorganic component SEI film to enhance the stability of a promoted-loading FeNCN electrode interface with fast Na + migration pathway. Benefitting from this strategy, the FeNCN electrode could present a capacity retention rate of 99.95% per cycle after 1500 cycles at 1 A g –1 . The design of interfacial structure in a promoted-loading electrode could be a reference for stable and high-rate performance of carbodiimide-based materials.