Controlled synthesis of LiNi0.5Mn1.5O4 cathode materials with superior electrochemical performance through urea-based solution combustion synthesis

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 49831-49837 ◽  
Author(s):  
Chunyu Zhu ◽  
Cheng-gong Han ◽  
Tomohiro Akiyama

High-voltage LiNi0.5Mn1.5O4 cathode materials were synthesized using urea-based solution combustion synthesis combined with a calcination treatment.

2010 ◽  
Vol 160-162 ◽  
pp. 554-557
Author(s):  
Gui Yang Liu ◽  
Jun Ming Guo ◽  
Yan Nan Li ◽  
Bao Sen Wang

Spinel LiMn2O4 powders have been prepared at 500 for 5h by solution combustion synthesis in water or ethanol system, using lithium and manganese acetate as raw materials and no fuels. The structure and morphology of the products have been analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The electrochemical performance has been charged or discharged in coin-type battery. XRD analysis indicates that the purity and crystallinity of the product prepared in ethanol are much better than these of the product prepared in water. SEM investigation indicates that the particles of the product prepared in ethanol are smaller and more dispersed than these of the products prepared in water. The product prepared in ethanol also exhibits better electrochemical performance than that of the product prepared in water. The initial discharge capacity of the product prepared in ethanol is 120mAh/g, and remains 110mAh/g after 20 cycles, at a current density of 50mA/g and in the voltage range of 3.2-4.35V.


2020 ◽  
Vol 38 (9) ◽  
pp. 976-982
Author(s):  
Redouan El Khalfaouy ◽  
Servet Turan ◽  
Miguel A. Rodriguez ◽  
Kamil Burak Dermenci ◽  
Umut Savacı ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 79050-79057 ◽  
Author(s):  
Honglei Li ◽  
Shichao Zhang ◽  
Xin Wei ◽  
Puheng Yang ◽  
Zhixu Jian ◽  
...  

Lithium-rich layered Li1.2Ni0.13Co0.13Mn0.54O2 cathode materials have been successfully fabricated by a glucose-assisted combustion method combined with a calcination treatment.


2011 ◽  
Vol 142 ◽  
pp. 213-216
Author(s):  
Gui Yang Liu ◽  
Jun Ming Guo ◽  
Yan Nan Li ◽  
Bao Sen Wang ◽  
Ying He

Spinel LiMn2O4 have been prepared by a flameless solution combustion synthesis, using nitrate and acetate salts as raw materials without any fuels. The effect of ignition temperature on the phase structure, micro morphology and electrochemical performance has been studied. The results indicate that spinel LiMn2O4 with single phase can be prepared successfully by the present method at the ignition temperatures of 300-800°C and calcination temperature of 600°C for 5h. The crystallinity, dispersity of the gains and electrochemical performance of the products increase with the decreasing ignition temperatures.


2021 ◽  
Vol 69 ◽  
pp. 134-142
Author(s):  
S.N. Yadav ◽  
S.J. Rajoba ◽  
R.S. Kalubarme ◽  
V.G. Parale ◽  
L.D. Jadhav

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