活性炭細孔構造を反映した電気二重層キャパシタ等価回路モデルの開発

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2018/09/01

タイトル(英語): Development of Equivalent Circuit Model for Electric Double-Layer Capacitors Reflecting Pore Structure of Activated Carbon

著者名: 河野　昭彦（金沢工業大学工学部），田中　康太（金沢工業大学工学部），漆畑　広明（金沢工業大学工学部），藤田　洋司（金沢工業大学工学部），小山　正人（金沢工業大学工学部）

著者名(英語): Akihiko Kono (College of Engineering, Kanazawa Institute of Technology), Kota Tanaka (College of Engineering, Kanazawa Institute of Technology), Hiroaki Urushibata (College of Engineering, Kanazawa Institute of Technology), Yoji Fujita (College of Enginee

キーワード: 電気二重層キャパシタ，活性炭細孔構造，等価回路，充放電シミュレーション　　electric double-layer capacitor，pore structure of activated carbon，equivalent circuit，charge/discharge simulation

要約(英語): In this study, an equivalent circuit model of electric double-layer capacitors (EDLCs) reflecting a branched-pore structure for activated carbon was developed. Geometrical parameters such as pore diameter, pore depth, and branch number of the macro pore, meso pore, and micro pore were estimated from the analysis of the electrochemical impedance for EDLCs, combining theoretical equations and an equivalent circuit model. The developed equivalent circuit model was applied to charge/discharge simulations of EDLCs. The experimental and simulated cell voltages during pulsed-current charge were found to be in excellent agreement. Distributions of currents and voltages in the macro pore, meso pore, and micro pore during pulsed-current charges were discussed using equivalent circuit simulations. Electric-double layers were charged in order of the macro pore, the meso pore, and the micro pore. It was suggested that charge delays of the meso pore and the micro pore originated from both solution resistances in pores and the branch structure of the pore for activated carbon.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.138 No.9 （2018）

本誌掲載ページ: 739-746 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/138/9/138_739/_article/-char/ja/