Prepare and optimize NASICON-type Na4MnAl(PO4)3 as low cost cathode for sodium 
ion batteries

Zheng, Y.; Liu, J.; Huang, D.; Chen, Hedong; Hou, X.

doi:10.1016/j.surfin.2022.102151

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Prepare and optimize NASICON-type Na₄MnAl(PO₄)₃ as low cost cathode for sodium ion batteries

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Chen, Hedong
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Zheng, Y., Liu, J., Huang, D., Chen, H., & Hou, X. (2022). Prepare and optimize NASICON-type Na₄MnAl(PO₄)₃ as low cost cathode for sodium ion batteries. Surfaces and Interfaces, 32: 102151, pp. 1-7. doi:10.1016/j.surfin.2022.102151.

Cite as: https://hdl.handle.net/21.11116/0000-000A-BD7D-6

Abstract

Though the Na4MnAl(PO4)3 (NMAP) show the lower cost, higher energy density and environmental friendless than Na3V2(PO4)3, the NMAP exhibits the low capacity and undesirable cycling stability. Herein, the Na4MnAl(PO4)3 was synthesized by a simple sol-gel method. First, the impacts of various synthesized temperature and calcined time on electrochemical property of NMAP were systemically revealed. It is impressive that the optimized NMAP among synthesized samples exhibits the obviously improved specific capacity and cycling stability. The NMAP can deliver the specific capacity of 110 mAh g−1 at 0.1 C and maintain the capacity retention of 50% after 100 cycles. The electrochemical impedance spectroscopy and various scanning CV tests are applied to clarify the dynamics of Na+ diffusion electrochemical reaction. Moreover, the reason for capacity decay is revealed by the XRD and electrochemical measurements. This investigation can provide meaningful reference for the developed low cost NMAP and optimized its electrochemical property. © 2022