Carbon Quantum Dots Deposed on TiO2 Hollow Spheres for Lithium-Ion Battery Anodes

2012 ◽  
Vol 68 ◽  
pp. 28-31 ◽  
Author(s):  
Li Zhao ◽  
Fangqi Tao ◽  
Zhao Quan ◽  
Xianlong Zhou ◽  
Yuhong Yuan ◽  
...  

2016 ◽  
Vol 09 (02) ◽  
pp. 1650027 ◽  
Author(s):  
Yongli Cui ◽  
Jiali Wang ◽  
Mingzhen Wang ◽  
Quanchao Zhuang

Shell spinel LiNi[Formula: see text]Mn[Formula: see text]O4 hollow microspheres were successfully synthesized by MnCO3 template, and characterized by XRD, SEM, and TEM. The results show that the hollow LiNi[Formula: see text]Mn[Formula: see text]O4 cathode has good cycle stability to reach 124.5, 119.8, and 96.6[Formula: see text]mAh/g at 0.5, 1, and 5 C, the corresponding retention rate of 98.1%, 98.2%, and 98.0% after 50 cycles at 20[Formula: see text]C, and the reversible capacity of 94.6[Formula: see text]mAh/g can be obtained at 1 C rate at 55[Formula: see text]C, 83.3% retention after 100 cycles. As the temperature decreases from 10[Formula: see text]C to [Formula: see text]C, the resistance of [Formula: see text] increases from 5.5 [Formula: see text] to 135 [Formula: see text], [Formula: see text] from 27 [Formula: see text] to 353.2 [Formula: see text], and [Formula: see text] from 12.7 [Formula: see text] to 73.0 [Formula: see text]. Moreover, the B constant and [Formula: see text] activation energy are 4480[Formula: see text]K and 37.22[Formula: see text]KJ/mol for the NTC spinel material, respectively.


2019 ◽  
Vol 295 ◽  
pp. 246-252 ◽  
Author(s):  
Jianbiao Wang ◽  
Chengyu Yang ◽  
Jingjing Wang ◽  
Lijing Han ◽  
Mingdeng Wei

2013 ◽  
Vol 25 (43) ◽  
pp. 6250-6255 ◽  
Author(s):  
Jae-Min Jeong ◽  
Bong Gill Choi ◽  
Soon Chang Lee ◽  
Kyoung G. Lee ◽  
Sung-Jin Chang ◽  
...  

2018 ◽  
Vol 53 (11) ◽  
pp. 8499-8509 ◽  
Author(s):  
Ruiping Liu ◽  
Chao Shen ◽  
Chao Zhang ◽  
James Iocozzia ◽  
Qi Wang ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (63) ◽  
pp. 58069-58076 ◽  
Author(s):  
Guanglei Wu ◽  
Hongjing Wu ◽  
Kuikui Wang ◽  
Chenhui Zheng ◽  
Yiqun Wang ◽  
...  

A simple template-free hydrothermal method has been developed to prepare multi-shelled SnO2 hollow spheres with controlled interior texture.


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