Surface modification of LiNi0.5Mn1.5O4 cathodes with ZnAl2O4 by a sol–gel method for lithium ion batteries

2014 ◽  
Vol 115 ◽  
pp. 326-331 ◽  
Author(s):  
Yongho Lee ◽  
Junyoung Mun ◽  
Dong-Won Kim ◽  
Joong Kee Lee ◽  
Wonchang Choi
2016 ◽  
Vol 189 ◽  
pp. 147-157 ◽  
Author(s):  
Qianyu Zhang ◽  
Yan Liu ◽  
Huansheng Lu ◽  
Daoping Tang ◽  
Chuying Ouyang ◽  
...  

2022 ◽  
Author(s):  
He Duan ◽  
Zhiyong Zhou ◽  
Yanming Zhao ◽  
Youzhong Dong

Single-phase magnesium molybdate, MgMoO4, is successfully synthesized by a facile sol-gel method. Attributed to the multielectron reaction and the synergistic effect of the elements molybdenum (Mo) and magnesium (Mg), the...


2015 ◽  
Vol 3 (9) ◽  
pp. 955-960 ◽  
Author(s):  
Lingfang Li ◽  
Changling Fan ◽  
Xiaobing Huang ◽  
Xiang Zhang ◽  
Shaochang Han

2013 ◽  
Vol 232 ◽  
pp. 258-263 ◽  
Author(s):  
Shuangke Liu ◽  
Jing Xu ◽  
Dezhan Li ◽  
Yun Hu ◽  
Xiang Liu ◽  
...  

2012 ◽  
Vol 1440 ◽  
Author(s):  
Satoru Tsumeda ◽  
Scott D. Korlann ◽  
Shunzo Suematsu ◽  
Kenji Tamamitsu

ABSTRACTOlivine lithium manganese phosphate, LiMnPO4 is a promising cathode material for high energy and safe lithium ion batteries. However, LiMnPO4 possesses excessively poor electrochemical activity, compared to conventional cathode materials. To enhance the electrochemical activity, we have synthesized LiMnPO4/multi-walled carbon nanotube (MWCNT) composites by employing an in-situ sol-gel method. The LiMnPO4/MWCNT composites were investigated by utilizing X-ray diffraction, thermogravimetric analysis, scanning electron microscope, transmission electron microscope, and galvanostatic charge-discharge cycling. The LiMnPO4 showed a particle size of ca. 50 nm and capacity of 102 mAh/g at 0.1 C without C.V. charging mode. This study demonstrated that the electrochemical activity of LiMnPO4 was significantly affected by not only pH and the amount of a chelating agent but also unreacted Mn2+. This is the first report analyzing the existence and effects of unreacted Mn2+ in LiMnPO4 synthesized by a sol-gel method.


RSC Advances ◽  
2015 ◽  
Vol 5 (91) ◽  
pp. 74774-74782 ◽  
Author(s):  
Wenjun Zhu ◽  
Hui Yang ◽  
Wenkui Zhang ◽  
Hui Huang ◽  
Xinyong Tao ◽  
...  

A Li4Ti5O12/TiO2/carbon (Li4Ti5O12/TiO2/C) nanocrystalline composite has been successfully synthesized by a facile sol–gel method and subsequent calcination treatment.


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