完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Yang, Huan | en_US |
dc.contributor.author | Luo, Xu-Feng | en_US |
dc.contributor.author | Matsumoto, Kazuhiko | en_US |
dc.contributor.author | Chang, Jeng-Kuei | en_US |
dc.contributor.author | Hagiwara, Rika | en_US |
dc.date.accessioned | 2020-10-05T01:59:52Z | - |
dc.date.available | 2020-10-05T01:59:52Z | - |
dc.date.issued | 2020-09-15 | en_US |
dc.identifier.issn | 0378-7753 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1016/j.jpowsour.2020.228406 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/155000 | - |
dc.description.abstract | In this study, thermal, physical, and electrochemical properties of the ionic liquid electrolyte system, Na[FTA]-[C(3)C(1)pyrr][FTA], (FTA(-) = (fluorosulfonyl) (trifluoromethylsulfonyl)amide and C(3)C(1)pyrr(+) = N-methyl-N-pro-pylpyrrolidinium) have been investigated for Na secondary batteries. The asymmetric FTA. structure provides a wide liquid-phase temperature range, especially at low x(Na[FTA]) (x(Na[FTA]) = molar fraction of Na[FTA]) and low temperature range. Glass transition at 170-209 K is the only observed thermal behavior in the x(Na [FTA]) of 0.0-0.4. Temperature dependence of viscosity and ionic conductivity obeys the Vogel-Tammann-Fulcher equation, and the correlation between molar conductivity and viscosity follows the fractional Walden rule. The anodic potential limits are above 5 V vs. Na+/Na at 298 and 363 K. The noticeable effects of x(Na [FTA]) are observed in the electrochemical performance of Na metal and hard carbon electrodes. In both cases, a moderate concentration, x(Na[FTA]) of 0.2-0.3, enables favorable charge-discharge behavior. At 363 K, the discharge capacities of the hard carbon electrode at x(Na[FTA]) of 0.3 are 260 and 236 mAh g(-1) at the current densities of 20 and 200 mA g(-1), respectively. The optimum cycling performance occurs at x(Na[FTA]) = 0.3, providing satisfactory capacity retention and high average Coulombic efficiency. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Na secondary batteries | en_US |
dc.subject | Ionic liquids | en_US |
dc.subject | (fluorosulfonyl)(trifluoromethylsulfonyl)amide | en_US |
dc.subject | Hard carbon | en_US |
dc.title | Physicochemical and electrochemical properties of the (fluorosulfonyl) (trifluoromethylsulfonyl)amide ionic liquid for Na secondary batteries | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.jpowsour.2020.228406 | en_US |
dc.identifier.journal | JOURNAL OF POWER SOURCES | en_US |
dc.citation.volume | 470 | en_US |
dc.citation.spage | 0 | en_US |
dc.citation.epage | 0 | en_US |
dc.contributor.department | 材料科學與工程學系 | zh_TW |
dc.contributor.department | Department of Materials Science and Engineering | en_US |
dc.identifier.wosnumber | WOS:000544260600010 | en_US |
dc.citation.woscount | 0 | en_US |
顯示於類別: | 期刊論文 |