Synthesis and performance of shape-controlled spinel LiNi0.5 Mn1.5O4
CHEN Qiang
HUO Hang
ZHAO Rui-rui
ZHU Ji-tao
JIANG Jian-hui
CHEN Hong-yu
Abstract：LiNi0.5 Mn1.5 O4 powders were synthesized by sol-gel method.The salt solution was add-ed into the oxalic acid solution at different feeding speeds.The crystal structures,material mor-phologies and electrochemical performances of the LiNi0.5 Mn1.5 O4 cathode materials were exam-ined by XRD and SEM technologies.The results reveal optimized synthesis parameters:the salt solution of a feeding speed of 0.17 ml/s and preheated temperature at 450 ℃ for 4 h.The as-made material delivers a discharge capacity of 1 3 5 mAh/g at 1 C rate with a high capacity reten-tion of 96.26% after 55 cycles.
Keywords：Li-ion battery5 V cathode materialLiNi0.5 Mn1.5 O4sol-gel method
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 71-75 )