scholarly journals Synthesis and Electrochemical Characteristics of Carbon Coated SiOx/ZnO Composites by Sol-gel Method

2016 ◽  
Vol 22 (4) ◽  
pp. 308-315
Author(s):  
Gwang-Yong Baek ◽  
Sang Mun Jeong ◽  
Byung-Ki Na
2010 ◽  
Vol 55 (12) ◽  
pp. 3864-3869 ◽  
Author(s):  
Tao Jiang ◽  
Wencheng Pan ◽  
Jian Wang ◽  
Xiaofei Bie ◽  
Fei Du ◽  
...  

2012 ◽  
Vol 501 ◽  
pp. 56-60 ◽  
Author(s):  
Jaafar Mohd Hilmi ◽  
Mohamed Nor Sabirin ◽  
Rosiyah Yahya ◽  
Norlida Kamarulzaman

LiCoO2 is a well established commercial Li-ion battery cathode. However, due to cost constraints and the toxicity of the metal, other layered compounds should be investigated. In this paper, layered LiMn0.3Co0.3Ni0.3Fe0.1O2 were prepared using sol-gel method with CH3COOLi•2H2O, (CH3CO2)2Mn•4H2O, (CH3CO2)2Co•4H2O, (CH3CO2)2Ni•4H2O and Fe (NO3)3•9H2O as starting materials. The sample was characterized by simultaneous thermogravimetric analysis, x-ray powder diffraction and scanning electron microscopy. The electrochemical characteristics were studied by a charge-discharge cycle done on the fabricated cell using a charge current of 1.0 mA and a discharge current 0.5 mA between 4.2 and 0.5 V. The XRD results showed that the layered LiMn0.3Co0.3Ni0.3Fe0.1O2 were of pure phase with discharge capacity of about 136 mAhg-1. The batteries were then subjected to a series of charge-discharge cycling in the voltage range of 2.5 to 4.2 V. The results showed there was little loss of capacity after 10 cycles.


2011 ◽  
Vol 266 ◽  
pp. 22-25 ◽  
Author(s):  
Rong Yang ◽  
Er Wei Kang ◽  
Bai Ling Jiang ◽  
Xiao Ping Song

LiFePO4/C is synthesized via sol-gel method using Fe3+ as iron sources and complexing agents, followed by sintering at high temperature for crystallization. The amount of carbon in these composites is less than 6.8 wt.% and the XRD experiment confirms that all samples are pure single phase indexed with orthorhombic Pnma space group. The particle size of the LiFePO4/C synthesized by acetic acid as complexing agent is drastically fine with 200nm. The electrochemical performance of this material, including reversible capacity, cycle number and charge-discharge characteristics, exhibits better.


2002 ◽  
Vol 12 (12) ◽  
pp. 3827-3831 ◽  
Author(s):  
S. H. Park ◽  
Y.-K. Sun ◽  
C. S. Yoon ◽  
C.-K. Kim ◽  
J. Prakash

2005 ◽  
Vol 22 (1) ◽  
pp. 46-51 ◽  
Author(s):  
Ki Soo Park ◽  
Myung Hun Cho ◽  
Sung Jang Jin ◽  
Chi Hoon Song ◽  
Kee Suk Nahm

2007 ◽  
Vol 52 (16) ◽  
pp. 5251-5257 ◽  
Author(s):  
Quanqi Chen ◽  
Jianming Wang ◽  
Zheng Tang ◽  
Weichun He ◽  
Haibo Shao ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document