scholarly journals Effect of pH values on structural, optical, electrical and electrochemical properties of spinel LiMn2O4 cathode materials

2019 ◽  
Vol 4 (2) ◽  
pp. 245-251 ◽  
Author(s):  
Prakash Chand ◽  
Vivek Bansal ◽  
Sukriti ◽  
Vishal Singh
2013 ◽  
Vol 225 ◽  
pp. 286-292 ◽  
Author(s):  
Liang Xiao ◽  
Yonglin Guo ◽  
Deyu Qu ◽  
Bohua Deng ◽  
Hanxing Liu ◽  
...  

2014 ◽  
Vol 147 ◽  
pp. 271-278 ◽  
Author(s):  
Weicheng Wen ◽  
Bowei Ju ◽  
Xianyou Wang ◽  
Chun Wu ◽  
Hongbo Shu ◽  
...  

2012 ◽  
Vol 581-582 ◽  
pp. 353-358 ◽  
Author(s):  
Xian Yan Zhou ◽  
Mi Mi Chen ◽  
Chang Wei Su ◽  
Yan Xia ◽  
Xiang Zhong Huang ◽  
...  

LiMn2O4 cathode materials were successfully prepared by solid-state combustion synthesis with the lithium carbonate and the manganese carbonate as raw materials and the citric acid as fuel. The effect of citric acid on composition, microstructure and electrochemical properties of LiMn2O4 cathode materials was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV) and galvanostatic charge-discharge test. The results indicated that a pure phase of LiMn2O4 was prepared at the product with 5 wt% citric acid. However, an impure phase of Mn3O4 was found at other products. The crystal size distribution was more uniform at the higher content of citric acid. The products with 5 wt% and 10 wt% citric acid, the cubic structure morphologies of which were more prominent, and the capacities of which were higher than that of bare LiMn2O4 product. Their initial discharge specific capacities were 119.6 mAh•g-1 and 114.0 mAh•g-1, and their capacity retention ratios after 40 cycles were 85.0% and 87.7%, respectively.


2013 ◽  
Vol 566 ◽  
pp. 16-21 ◽  
Author(s):  
Hongwei Tang ◽  
Zhaorong Chang ◽  
Haili Zhao ◽  
Xiao-Zi Yuan ◽  
Haijiang Wang ◽  
...  

2005 ◽  
Vol 150 ◽  
pp. 216-222 ◽  
Author(s):  
Xiangming He ◽  
Jianjun Li ◽  
Yan Cai ◽  
Yaowu Wang ◽  
Jierong Ying ◽  
...  

2011 ◽  
Vol 196 (7) ◽  
pp. 3640-3645 ◽  
Author(s):  
Xiaofeng Zhang ◽  
Honghe Zheng ◽  
Vincent Battaglia ◽  
Richard L. Axelbaum

2015 ◽  
Vol 3 (7) ◽  
pp. 3633-3640 ◽  
Author(s):  
Sisi Huang ◽  
Hao Wu ◽  
Penghui Chen ◽  
Yi Guo ◽  
Bo Nie ◽  
...  

A pH-mediated approach to synthesize single crystalline LiMn2O4 is developed by truncating a small portion of the surface to support Li diffusion while leaving most of the remaining surfaces with minimal Mn dissolution.


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