ポリ３‐メチルチオフェンの電解重合と二次電池への応用

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タイトル別名
  • Synthesis of poly(3-methylthiophene) by electrochemical polymerization and application to secondary batteries.
  • ポリ 3 メチルチオフェン ノ デンカイ ジュウゴウ ト 2ジ デンチ ヘ ノ

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抄録

The fundamental properties of polythiophene (PT) and poly (3-methylthiophene) (P3MT) synthesized by electrochemical polymerization and the discharge characteristics of P3MT secondary batteries are described. High quality PT and P3MT were synthesized in film forms by electrochemical polymerization in the propylene carbonate solutions containing LiBF4 or LiAsF6. The conductivity of the AsF6- ion-doped (30mol%) P3MT film was 130Scm-1. The P3MT film was very stable in both doped and undoped states. A P3MT/LiBF4+PC+EEC/Al (PC: propylene carbonate, EC: ethylene carbonate) battery could be charged and discharged over 1200 cycles at the doping level of 9% while the coulombic and power efficiencies maintained over 95% and 88%, respectively. This battery exhibited an energy density of 326 Wh/kg based on the weight of the electrode active material at a doping level of 38%. The self-discharge of this battery was relatively small.

収録刊行物

  • 高分子論文集

    高分子論文集 44 (4), 297-303, 1987

    公益社団法人 高分子学会

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