电化学（中英文）2025，Vol.31Issue(5)：62-69,8.DOI:10.61558/2993-074X.3534
三维三聚氰胺碳海绵/碘化钠复合材料作为钠离子电池正极材料的研究
Three-Dimensional Melamine Carbon Sponge/NaI as Cathode Materials for Sodium-ion Batteries
摘要
Abstract
The sodium-iodine(Na-I)battery exhibits significant potential as an alternative energy storage device to the lithium-ion battery.However,its development is hindered by inadequate electrical and thermal stability,as well as the dissolution and shuttling of polyiodide.In this study,we report a preparation method for melamine carbon sponge(MC)via carbonizing a commercially available kitchen sponge.It was revealed that the as-prepared MC,composed of unique self-growing carbon nanotubes,could provide both physical and chemical adsorption capabilities for intermediate polyiodides to improve the electrochemical performance of NaI.Consequently,the NaI/MC electrode effectively minimized polyiodide dissolution and reduced the electrochemical impedance.The NaI/MC cathode demonstrated a high average discharge capacity of 92.75 mAh·g-1 over 200 cycles while maintaining a coulombic efficiency of 94％.The research findings from our study have promising applications in Na-I batteries.关键词
钠碘电池/碘化钠/三聚氰胺碳海绵Key words
Sodium-iodine battery/Sodium iodide/Melamine carbon sponge引用本文复制引用
黄倩莹,刘悦,林子鑫,郑淑怡,梅婷婷,唐宇婷,张颖鹤,刘军..三维三聚氰胺碳海绵/碘化钠复合材料作为钠离子电池正极材料的研究[J].电化学（中英文）,2025,31(5):62-69,8.基金项目
The work was supported by Shenzhen Key Labo-ratory of Advanced Functional Carbon Materials Re-search and Comprehensive Application(Grant No.ZDSYS20220527171407017). （Grant No.ZDSYS20220527171407017）
