Improving Charge/Discharge Properties of Radical Polymer Electrodes Influenced Strongly by Current Collector/Carbon Fiber Interface

被引：54

作者：

Yoshihara, Sunao ^{[2
]}

Isozumi, Hiroshi ^{[2
]}

Kasai, Masanori ^{[2
]}

Yonehara, Hisatomo ^{[2
]}

Ando, Yuko ^{[1
]}

Oyaizu, Kenichi ^{[1
]}

Nishide, Hiroyuki ^{[1
]}

机构：

[1] Waseda Univ, Dept Appl Chem, Tokyo 1698555, Japan

[2] DIC Corp, Graph Arts Lab, Tokyo 1748520, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2010年 / 114卷 / 25期

关键词：

SCANNING-TUNNELING-MICROSCOPY; ACTIVE MATERIAL; BATTERY; DENSITY; BEARING;

D O I：

10.1021/jp1019526

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：

Charge/discharge processes of organic radical batteries based on the radical polymer's redox reaction are largely influenced by carbon fibers consisting in the composite electrodes to help electron transfer. To find the optimal structure of the composite electrodes, the dominant electron transfer processes were determined by ac impedance measurement of the composite electrodes. A strong correlation between the overall electron transfer resistance of the composite electrodes and the materials of the current collector suggests that the electric conduction to the current collector through the contact resistance should be crucial. It was also confirmed that the charge/discharge performance of the composite electrode was related to the overall electron transfer resistance of the composite electrode. These results indicated that the charge/discharge performance of the radical battery was dominated by the interfacial electron transfer processes at the current collector/carbon fiber interface and that the rate performance would be much improved by suitably designing the interfacial structure.

引用

页码：8335 / 8340

页数：6

共 31 条

[1] Oxide Contacts in Organic Photovoltaics: Characterization and Control of Near-Surface Composition in Indium-Tin Oxide (ITO) Electrodes [J].