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タイトル: | Novel composite electrolyte membranes consisting of fluorohydrogenate ionic liquid and polymers for the unhumidified intermediate temperature fuel cell |
著者: | Lee, Je Seung Nohira, Toshiyuki https://orcid.org/0000-0002-4053-554X (unconfirmed) Hagiwara, Rika https://orcid.org/0000-0002-7234-3980 (unconfirmed) |
著者名の別形: | 野平, 俊之 萩原, 理加 |
キーワード: | Ionic liquid Fluorohydrogenate Polymer Composite electrolyte membrane Ionic conductivity Fuel cell |
発行日: | 27-Sep-2007 |
出版者: | Elsevier BV |
誌名: | Journal of Power Sources |
巻: | 171 |
号: | 2 |
開始ページ: | 535 |
終了ページ: | 539 |
抄録: | Novel composite electrolyte membranes consisting of [EMIm](FH)ₙF (EMIm = 1-ethyl-3-methylimidazolium, n = 1.3 and 2.3) ionic liquids and fluorinated polymers were synthesized and their physical and electrochemical properties were measured under unhumidified conditions for their application to the intermediate temperature fuel cells. The ionic conductivities of composite membrane, P(VdF-co-HFP)/s-DFBP-HFDP/[EMIm](FH)₂.₃F (1/0.3/1.75 in weight ratio), were 11.3 and 34.7 mS cm⁻¹ at 25 and 130 °C, respectively. The open circuit voltage (OCV) observed for the single cell using [EMIm](FH)₂.₃F composite electrolyte was ∼1.0 V at 130 °C for over 5 h. The maximum power density of 20.2 mW cm⁻² was observed under the current of 60.1 mA cm⁻² at 120 °C. From the high thermal stability and high ionic conductivity, the fluorohydrogenate ionic liquid composite membranes are regarded as promising candidates for the electrolytes of the unhumidified intermediate temperature fuel cells. |
著作権等: | © 2007. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/260594 |
DOI(出版社版): | 10.1016/j.jpowsour.2007.06.012 |
出現コレクション: | 学術雑誌掲載論文等 |
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