Electrochemical performance of cathodes prepared on current collector with different surface morphologies

被引：30

作者：

Nakamura, Tatsuya ^{[1
]}

Okano, Shingo ^{[1
]}

Yaguma, Noriko ^{[2
]}

Morinaga, Yukari ^{[2
]}

Takahara, Hikari ^{[1
]}

Yamada, Yoshihiro ^{[1
]}

机构：

[1] Univ Hyogo, Div Elect Mat & Devices, Dept Elect Engn & Comp Sci, Grad Sch Engn, Himeji, Hyogo 6712280, Japan

[2] MEC Co Ltd, Amagasaki, Hyogo 6600832, Japan

来源：

JOURNAL OF POWER SOURCES | 2013年 / 244卷

关键词：

Cathode; Current collector; Potential profile; Complex impedance; LITHIUM-ION BATTERIES; ALUMINUM CORROSION; ELECTROLYTE; INTERFACE;

D O I：

10.1016/j.jpowsour.2013.02.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：532 / 537

页数：6

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