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Development of Lignin-Based Terpolyester Film and Its Application to Separator Material for Electric Double-Layer Capacitor
Title: | Development of Lignin-Based Terpolyester Film and Its Application to Separator Material for Electric Double-Layer Capacitor |
Authors: | Koda, Keiichi Browse this author →KAKEN DB | Taira, Shogo Browse this author | Kubota, Atsushi Browse this author | Isozaki, Tomofumi Browse this author | You, Xiangyu Browse this author | Uraki, Yasumitsu Browse this author →KAKEN DB | Sugimura, Kazuki Browse this author →KAKEN DB | Nishio, Yoshiyuki Browse this author →KAKEN DB |
Keywords: | Electric double-layer capacitor (EDLC) | polyethylene glycol lignin (PEGL) | terpolyester | separator | self-standing film |
Issue Date: | 4-May-2019 |
Publisher: | Taylor & Francis |
Journal Title: | Journal of wood chemistry and technology |
Volume: | 39 |
Issue: | 3 |
Start Page: | 198 |
End Page: | 213 |
Publisher DOI: | 10.1080/02773813.2018.1562472 |
Abstract: | For new application of technical lignins as separator material for electric double-layer capacitor (EDLC), we tried first to prepare bipolyester film by melt-polycondensation of polyethylene glycol lignin (PEGL) and maleic anhydride. The EDLC assembled with this film, however, showed lower electrochemical performance than the reference EDLC with commercial cellulosic separator. Porous bipolyester film was then prepared and the resulting EDLC exhibited improved specific capacitance, but high intrinsic and charge transfer resistances. Non-porous terpolyester film was prepared next, using polyethylene glycol 500,000 to improve flexibility of the film, which might lower the resistances. This film was flexible enough and provided the resulting EDLC with superior electrochemical performance to the bipolyester film. EDLC with porous terpolyester film was finally prepared and showed the highest electrochemical performance, comparable to the reference EDLC. Porous morphology and flexibility were key factors to fabricate lignin-based self-standing film as separator material for high-performance EDLC. |
Rights: | This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Wood Chemistry and Technology on 4 May 2019, available online: http://www.tandfonline.com/10.1080/02773813.2018.1562472. |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/77816 |
Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 幸田 圭一
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