Self-propagation combustion preparation and properties of neodymium ion-doped lithium manganate nanoparticles

Abstract

Abstract: A neodymium ion-doped lithium manganate(LiMn_1.99Nd_0.01O₄) nanoparticle was prepared using the self-propagation combustion method. The crystal structure, microscopic morphology, and electrochemical performance of the material were characterized by XRD, SEM, and CV. The results show that neodymium ion doping does not affect the crystal structure, but can reduce the particle size of LiMn₂O₄ particles, thereby improving its electrochemical performance. The discharge specific capacity at 0.2C is as high as 125.6 mAh·g^－1. The initial discharge capacity at 1C is 118.4 mAh·g^－1, and the discharge-specific capacity after 100 cycles is 110.4 mAh·g^－1. The capacity retention rate is 93.2%.

Key words: self-propagating combustion, lithium manganate, cathode material, lithium ion battery

CLC Number:

O646

ZHANG Qing-tang, ZHU Yong-fang, HU Xiao-jun. Self-propagation combustion preparation and properties of neodymium ion-doped lithium manganate nanoparticles[J]. Journal of Lanzhou University of Technology, 2023, 49(1): 69-73.

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