SYNTHESIS AND CHARACTERIZATION OF P2-Na1.0Li0.15Mn0.8Ni0.2O2 MATERIAL FOR CATHODE IN SODIUM-ION BATTERIES | Nghĩa | TNU Journal of Science and Technology

SYNTHESIS AND CHARACTERIZATION OF P2-Na1.0Li0.15Mn0.8Ni0.2O2 MATERIAL FOR CATHODE IN SODIUM-ION BATTERIES

About this article

Received: 06/07/25                Revised: 26/11/25                Published: 26/11/25

Authors

1. Nguyen Van Nghia, Hanoi Architectural University
2. Nguyen Van Ky, Le Quy Don Technical University
3. Vu Dinh Lam, Graduate University of Science and Technology - VAST
4. Nguyen Thi Thu Hoa Email to author, 1) Hanoi Architectural University, 2) Graduate University of Science and Technology - VAST

Abstract


In this work, a Na1.0Li0.15Mn0.8Ni0.2O2  material with a P2-type structure was successfully synthesized using the simple solid state technique. The crystal structure and morphological characteristics of  Na1.0Li0.15Mn0.8Ni0.2O2 material were comprehensively analyzed by X ray analysis, scanning electron microscopy, and energy dispersive spectroscopy. The Na1.0Li0.15Mn0.8Ni0.2O2 compound was used to make CR2032-type coin cells  for evaluating its electrochemical characteristics. Electrochemical testing revealed that the initial charge and discharge capacities of the Na1.0Li0.15Mn0.8Ni0.2O2 cathode, at a current density of 10 mA.g-1 within the voltage range of 1.5 - 4.5 V, were 127.29 mAh.g-1 and 114.11 mAh.g-1, respectively. After 50 charge-discharge cycles, the retained capacity is approximately  57.2% of the first cycle discharge capacity. The results show that the Na1.0Li0.15Mn0.8Ni0.2O2 oxide is a potential cathode for sodium ion battery applications.

Keywords


Sodium-ion battery; Cathode materials; Solid-state reaction; Sodium manganese-based oxide materials; Layered structural materials

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References


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DOI: https://doi.org/10.34238/tnu-jst.13181

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