A Study on Preparation Methods of LiNi0.5Mn0.5O2 Cathode Materials

2012 ◽  
Vol 625 ◽  
pp. 189-192
Author(s):  
Feng Rao Lang

This paper selects the LiNi0.5Mn0.5O2 with layer structure as the research object, and does the future research about preparation methods and synthesis conditions. LiNi0.5Mn0.5O2 cathode material was successfully synthesized by co-precipitation method. In order to explore the optimal path of LiNi0.5Mn0.5O2 material synthesized by co-precipitation method optimal path, pretreatment, calcining heat, calcining time, cooling way on the material structure. Finally find the better synthesis conditions and improve synthesis technology.

2017 ◽  
Vol 53 (40) ◽  
pp. 5569-5572 ◽  
Author(s):  
Yang Liu ◽  
Dandan He ◽  
Ruimin Han ◽  
Gangya Wei ◽  
Yun Qiao

Nanostructured KxNayMnFe(CN)6 (x + y ≤ 2) has been synthesized via a facile co-precipitation method.


2013 ◽  
Vol 781-784 ◽  
pp. 239-242
Author(s):  
Lei Wang ◽  
Peng Xiao

In this paper, SiMgAl hydotalcite synthesis conditions were investigated using co-precipitation method, within a relatively stable pH environment of 8~9. Our research, analysis and discussion focused on the effects of major factors, such as material molar ratio ,silicon content and aged condition, on the structures of synthetic products. To achieve stable and accurate data, synthetic products were characterized by XRD and IR under the identical conditions. As shown in the results, it is suggested that the best Crystallization temperature is 70°C, molar ratio of Mg to Al is 3:1, and the best content of Silicon is 0.015mol/mol.


2013 ◽  
Vol 160 (5) ◽  
pp. A3108-A3112 ◽  
Author(s):  
Dapeng Wang ◽  
Ilias Belharouak ◽  
Guangwen Zhou ◽  
Khalil Amine

2007 ◽  
Vol 14 (06) ◽  
pp. 1135-1141 ◽  
Author(s):  
JIE-GUANG SONG ◽  
LIAN-MENG ZHANG ◽  
JUN-GUO LI ◽  
JIAN-RONG SONG

Although Zirconium diboride ( ZrB 2) is a desirable combination with some good properties, it is easily oxidized in the high-temperature air to impact high-temperature properties, which dwindles the applied range. In order to decrease oxidization and improve the high-temperature properties of ZrB 2, the surface of ZrB 2 is coated with Al ( OH )3– Y ( OH )3 to synthesize Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles. In this paper, the conditions of synthesizing Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles by the co-precipitation method are investigated. Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles are synthesized under different conditions, but the conditions of synthesizing Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles with the better coating quality require pH = 9, the appropriate concentration ( Al 3+ = 0.017 mol/L , Y 3+ = 0.01 mol/L ) of composite solution, reaction time of 60 min, titration speed of 0.05 ml/s, using the dispersant in the ZrB 2 suspension and the ultrasonic dispersion, respectively.


2011 ◽  
Vol 236-238 ◽  
pp. 2076-2079
Author(s):  
Yan Rong Sun ◽  
Tao Fan ◽  
Yong Huang ◽  
Li Guo Ma ◽  
Feng Liu

The introduction of biomineralization was coupled with the co-precipitation synthesis process of nano-hydroxyapatite with the addition of chondroitin sulfate as a template agent. The effect of a variety of processing conditions on the properties of final hydroxyapatite (HA) product was investigated by orthogonal design. The ratio of calcium to phosphorus was detected by chemical analysis, the phase composition was evaluated by X-ray diffraction (XRD), and the powder morphology was characterized by transmission electron microscope (TEM). The process scheme, moreover, was optimized by the analysis of four aspects which may have different extent of influence on product properties. It can be concluded from the results that product properties can be affected remarkably by the content of chondroitin sulfate and the pH value of reactant, less remarkably by the reaction temperature and slightly by the reaction time.


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