Comparison of 4V and 3V electrochemical properties of nanocrystalline LiMn2O4 cathode particles in lithium ion batteries prepared by ultrasonic spray pyrolysis

2014 ◽  
Vol 40 (5) ◽  
pp. 7029-7035 ◽  
Author(s):  
Burçak Ebin ◽  
Vincent Battaglia ◽  
Sebahattin Gürmen
2013 ◽  
Vol 582 ◽  
pp. 123-126
Author(s):  
Takahiro Nakamura ◽  
Takayuki Kodera ◽  
Ryoma Minami ◽  
Takashi Ogihara

LiFePO4/C powders were synthesized by ultrasonic spray pyrolysis using carbon powder instead of organic substances as the carbon source. LiFePO4 (LFP) powders containing different types of carbon powders were prepared and used as cathode active materials in lithium ion batteries. The charge-discharge properties of lithium ion batteries with LFP, LFP/AB, and LFP/CNT powders as the cathode material were worse than those of the battery with LFP/sucrose powder as the cathode active material.


RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79971-79977 ◽  
Author(s):  
Binbin Fan ◽  
Xiaohua Chen ◽  
Aiping Hu ◽  
Qunli Tang ◽  
Haining Fan ◽  
...  

We have demonstrated a facile method to prepared 3D plum candy-like ZnCo2O4 microspheres using an ultrasonic spray pyrolysis technology.


2015 ◽  
Vol 1775 ◽  
pp. 7-12 ◽  
Author(s):  
Anara Molkenova ◽  
Izumi Taniguchi

ABSTRACTSpray pyrolysis has been widely used to prepare homogeneous and uniform ceramic powders with high purity. In this study, we are proposing ultrasonic spray pyrolysis followed by heat treatment to produce SiOx/C composite powders, where sucrose was used as a carbon source. Furthermore, high energy ball milling of the as-prepared powders in the presence of acetylene black was conducted to activate its electrochemical properties by reducing the particle size and improving the functionalization of the SiOx composite particles. SiOx/C nanocomposite finally obtained at a sucrous concentration of 0.1 mol L-1 showed superior electrochemical properties, and the SiOx/C nanocomposite electrode delivered the first discharge and charge capacities of 1252 and 819 mAh g-1, respectively, with an initial columbic efficiency of 65% at a current density of 50 mAh g-1 in the potential range from 0.01 to 3 V versus Li/Li+.


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