The interplay between the crystal structure and magnetism of the sodium-ion batteries made by super ion conductor - Na₃(V₁-xCox)₂(PO₄)₃/C(x=0,0.05)

Chun-Chuen Yang^1*, Po-Hao Chen¹, Kuen-Song Lin², Jian-Sing Li³, Chun-Rong Lin³

¹Department of Physics, Chung Yuan Christian University, Chung Li, Taoyuan, Taiwan
²Department of Chemical Engineering and Material Science, Yuan Ze University, Chung Li, Taoyuan, Taiwan
³3Department of Applied Physics, National Pingtung University, Pingtung, Taiwan

* Presenter:Chun-Chuen Yang, email:chunchuenyang@cycu.edu.tw

The interplay between magnetic ion-doped crystal structure and magnetic field of Na3V2(PO4)3/C (NVP/C) are studied. Magnetic field and temperature affect the ion channels inside the crystal structure of NVP and its outer coating amorphous carbon. The mechanism of the magnetic field influences the ion channel of NVP/C correlates with the dopant of the magnetic ions and the diamagnetism of carbon film. The origin is also associated with the expansion of the diffusion channel. These observations enable new ideas to design the host compounds of ion batteries. Moreover, the cathode of the sodium battery made by these samples can also be controlled by the external magnetic. In these studies, the magnetic ion-doped NVP/C sodium batteries can be utilized in multi-purpose under magnetic and temperature environments.

Keywords: sodium ion battery, NVP, Super ion conductor, magnetism