Electrochemical properties of carbon-coated LiFePO4 cathode using graphite, carbon black, and acetylene black

2006 ◽  
Vol 52 (4) ◽  
pp. 1472-1476 ◽  
Author(s):  
Ho Chul Shin ◽  
Won Il Cho ◽  
Ho Jang
2005 ◽  
Vol 146 (1-2) ◽  
pp. 521-524 ◽  
Author(s):  
G.X. Wang ◽  
L. Yang ◽  
S.L. Bewlay ◽  
Y. Chen ◽  
H.K. Liu ◽  
...  

2012 ◽  
Vol 137 (1) ◽  
pp. 169-176 ◽  
Author(s):  
Kun-Young Kang ◽  
Young-Gi Lee ◽  
Sanghyo Kim ◽  
Seung Ree Seo ◽  
Jin-Chul Kim ◽  
...  

2016 ◽  
Vol 724 ◽  
pp. 87-91 ◽  
Author(s):  
Chang Su Kim ◽  
Yong Hoon Cho ◽  
Kyoung Soo Park ◽  
Soon Ki Jeong ◽  
Yang Soo Kim

We investigated the electrochemical properties of carbon-coated niobium dioxide (NbO2) as a negative electrode material for lithium-ion batteries. Carbon-coated NbO2 powders were synthesized by ball-milling using carbon nanotubes as the carbon source. The carbon-coated NbO2 samples were of smaller particle size compared to the pristine NbO2 samples. The carbon layers were coated non-uniformly on the NbO2 surface. The X-ray diffraction patterns confirmed that the inter-layer distances increased after carbon coating by ball-milling. This lead to decreased charge-transfer resistance, confirmed by electrochemical impedance spectroscopy, allowing electrons and lithium-ions to quickly transfer between the active material and electrolyte. Electrochemical performance, including capacity and initial coulombic efficiency, was therefore improved by carbon coating by ball-milling.


1928 ◽  
Vol 1 (3) ◽  
pp. 458-464
Author(s):  
D. J. Beaver ◽  
T. P. Keller

Abstract The data presented herein show that in general the presence of oxygen on carbon black retards the rate of vulcanization in direct proportion to the amount of oxygen present and also decreases the maximum physical properties obtainable with a given amount of accelerator. The aging data show that the presence of this oxygen on the black increases the rate of aging as the amount of oxygen increases, but not in direct proportion to the per cent of this oxygen present. It can be concluded, therefore, that compounds which contain a small amount of oxygen, such as thermatomic, G black, or acetylene black, will give better aging stocks than compounds containing higher amounts of oxygen such as lampblack and standard channel blacks. No correlation could be found between the acetone extract, iodine adsorption, or oil adsorption, and the effect of these blacks on the rate of cure or aging.


2009 ◽  
Vol 115 (1) ◽  
pp. 245-250 ◽  
Author(s):  
Y.Z. Dong ◽  
Y.M. Zhao ◽  
Y.H. Chen ◽  
Z.F. He ◽  
Q. Kuang

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