Three-dimensional Melamine Carbon Sponge/NaI as Cathode Materials for Sodium-ion Batteries

Authors

Qianying Huang, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, PR China.
Yue Liu, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, PR China.
Zixin Lin, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, PR China.
Shuyi Zheng, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, PR China.
Tingting Mei, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, PR China.
Yuting Tang, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, PR China.
Yinghe Zhang, School of Science, Harbin Institute of Technology (Shenzhen), University Town, Shenzhen 518055, PR China; Shenzhen Key Laboratory of Advanced Functional Carbon Materials Research and Comprehensive Application.
Jun Liu, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, PR China.

Document Type

Article

Corresponding Author(s)

Yinghe Zhang(yinghe.zhang@googlemail.com);
Jun Liu(junliu23@gdut.edu.cn)

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. MC, composed of unique self-growing carbon nanotubes, can provide both physical and chemical adsorption capabilities for intermediate polyiodides to improve the electrochemical performance of NaI. Consequently, the NaI/MC electrode effectively minimizes polyiodide dissolution and reduces the electrochemical impedance. The NaI/MC cathode demonstrates a high average discharge capacity of 92.75mAh g^-1 over 200 cycles while maintaining a coulombic efficiency of 94%. The research findings from our study have promising applications in sodium-ion batteries.

Graphical Abstract

Keywords

sodium-iodine battery, sodium iodide, melamine carbon sponge

DOI

10.61558/2993-074X.3534

Online Date

3-23-2025

Recommended Citation

Qianying Huang , Yue Liu , Zixin Lin , Shuyi Zheng , Tingting Mei , Yuting Tang , Yinghe Zhang , Jun Liu. Three-dimensional Melamine Carbon Sponge/NaI as Cathode Materials for Sodium-ion Batteries[J]. Journal of Electrochemistry, doi: 10.61558/2993-074X.3534.