화학공학소재연구정보센터
Journal of Power Sources, Vol.244, 532-537, 2013
Electrochemical performance of cathodes prepared on current collector with different surface morphologies
LiCo1/3Ni1/3Mn1/3O2 cathode electrodes were prepared onto Al current collectors with different surface morphologies through usual doctor blade technique. Their electrochemical performances, especially at high current rate, were influenced by the surface morphology of the current collector:. These implied the less polarization for the electrode prepared on the surface roughened current collector. In addition, the AC complex impedance analysis exhibited that the interface resistance between the film electrode and the current collector as well as the interface resistance between the electrode and the electrolyte was reduced in the case of the surface-roughened current collector, but that the Ohmic resistance was enlarged. (C) 2013 Elsevier B.V. All rights reserved.