Electrochemical Polymerization of Electroactive Polyaniline in Nonaqueous Solution and Its Application in Rechargeable Lithium Batteries

Tetsuya Osaka, Satoshi Ogano, Katsuhiko Naoi

研究成果: Article査読

121 被引用数 (Scopus)

抄録

An electroactive polyaniline (PAn) was successfully prepared from nonaqueous propylene carbonate (PC) solution containing acid (CF3 COOH) and electrolyte (LiC104). PAn deposition and the doping-undoping process of deposited PAn film were investigated by consecutive cyclic voltammetry in various electropolymerization solutions. It is confirmed by infrared spectral measurement that there is no essential difference in the manner of bonding between the electroactive PAn films deposited from aqueous and PC solutions. Inspection by scanning electron microscope revealed that PAn films deposited from aqueous HC104 solution had a fibrous structure, whereas the PAn film deposited from PC solution had a porous surface which resembled polypyrrole films. The shape of the electro-oxidation curve is found to be essentially different, depending on the solvent or the pKa value of acid in an electropolymerization solution. An electroactive PAn film deposited from PC solution was applied to an effective cathode material of a rechargeable lithium battery (Li/LiClO4-PC/ PAn). The Li/LiC104-PC/PAn (deposited from PC solution) battery showed a high coulombic efficiency and high-energy density in charging-discharging behavior. The electroactivity of PAn film deposited from PC solution was found to be as high as, or higher than, that of PAn film deposited from aqueous solution.

本文言語English
ページ(範囲)306-309
ページ数4
ジャーナルJournal of the Electrochemical Society
136
2
DOI
出版ステータスPublished - 1989 2月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

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