1. A g-C3N4-coated paper-based separator for sodium metal batteries.
- Author
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Wu, Longjun, Yao, Xin, Liu, Yongchao, Ma, Jian, Zheng, Hao, Liang, Xin, Sun, Yi, and Xiang, Hongfa
- Subjects
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NITRIDES , *SODIUM compounds , *IONIC conductivity , *METALS , *CHEMICAL stability , *STORAGE batteries - Abstract
A paper-based membrane coated by graphitic carbon nitride (g-C3N4) is prepared via a dip-coating method and used as a separator for sodium metal batteries with merits of low cost and environment-friendliness. Introduction of g-C3N4 effectively improves the ionic conductivity and the structural stability of the separator. Compared with traditional polyethylene separators and Al2O3-coated separators, the g-C3N4-coated separators show better electrolyte wettability, thermal stability, and electrochemical stability. Therefore, Na||Na3V2(PO4)3 battery using the g-C3N4-coated separator exhibits better cycling stability and higher rate capability. These results prove that the g-C3N4-coated paper-based separator is expected to become the next generation of low-cost and high-safety separator in sodium metal batteries. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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