Pressure Evolution and Analysis of Aged Electrodes at High Temperature in Electrochemical Double Layer Capacitors
文献类型：期刊论文
| 作者 | He, Lizhi1,2; Li, Jianling1,2; Gao, Fei1,2; Wang, Xindong1,2; Ye, Feng3; Yang, Jun3 |
| 刊名 | ELECTROCHEMISTRY
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 79期号:12页码:934-940 |
| 关键词 | EDLC Ageing Gas Evolution Internal Pressure |
| ISSN号 | 1344-3542 |
| 其他题名 | Electrochemistry |
| 中文摘要 | The internal pressure of electrochemical double layer capacitors (EDLCs) using 1.0 mol dm(-3) triethylmethylammonium tetrafluoroborate (TEMABF(4)) in acetonitrile at different voltages at 70 degrees C was measured and sources of the internal pressure were clarified. The PCLV (precharge at low voltage) method was used to weaken the gas evolution and decrease internal pressure. It was found that the EDLC dealt with the PCLV had lower pressure at high voltage than that which was not. Electrochemical impedance spectroscopy was used to measure the capacitance and resistance of the EDLC after ageing. Elemental composition and morphology of the electrodes were analyzed by FESEM-EDX. The gas products generated at 3.0 V were identified by GC-MS. The reaction mechanisms of gas evolution are discussed. |
| 英文摘要 | The internal pressure of electrochemical double layer capacitors (EDLCs) using 1.0 mol dm(-3) triethylmethylammonium tetrafluoroborate (TEMABF(4)) in acetonitrile at different voltages at 70 degrees C was measured and sources of the internal pressure were clarified. The PCLV (precharge at low voltage) method was used to weaken the gas evolution and decrease internal pressure. It was found that the EDLC dealt with the PCLV had lower pressure at high voltage than that which was not. Electrochemical impedance spectroscopy was used to measure the capacitance and resistance of the EDLC after ageing. Elemental composition and morphology of the electrodes were analyzed by FESEM-EDX. The gas products generated at 3.0 V were identified by GC-MS. The reaction mechanisms of gas evolution are discussed. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Electrochemistry |
| 研究领域[WOS] | Electrochemistry |
| 关键词[WOS] | LITHIUM-ION BATTERIES ; SITU NEUTRON-RADIOGRAPHY ; CARBON SUPERCAPACITORS ; GAS EVOLUTION ; SPECTROSCOPY ; BEHAVIOR ; OXYGEN |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000297971200002 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6454]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China 2.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Dept Phys Chem, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Lizhi,Li, Jianling,Gao, Fei,et al. Pressure Evolution and Analysis of Aged Electrodes at High Temperature in Electrochemical Double Layer Capacitors[J]. ELECTROCHEMISTRY,2011,79(12):934-940. |
| APA | He, Lizhi,Li, Jianling,Gao, Fei,Wang, Xindong,Ye, Feng,&Yang, Jun.(2011).Pressure Evolution and Analysis of Aged Electrodes at High Temperature in Electrochemical Double Layer Capacitors.ELECTROCHEMISTRY,79(12),934-940. |
| MLA | He, Lizhi,et al."Pressure Evolution and Analysis of Aged Electrodes at High Temperature in Electrochemical Double Layer Capacitors".ELECTROCHEMISTRY 79.12(2011):934-940. |
入库方式： OAI收割
来源：过程工程研究所
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