CAS OpenIR  > 研究所(批量导入)
Pressure Evolution and Analysis of Aged Electrodes at High Temperature in Electrochemical Double Layer Capacitors
Alternative TitleElectrochemistry
He, Lizhi1,2; Li, Jianling1,2; Gao, Fei1,2; Wang, Xindong1,2; Ye, Feng3; Yang, Jun3
2011-12-01
Source PublicationELECTROCHEMISTRY
ISSN1344-3542
Volume79Issue:12Pages:934-940
AbstractThe 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.; 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.
KeywordEdlc Ageing Gas Evolution Internal Pressure
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordLITHIUM-ION BATTERIES ; SITU NEUTRON-RADIOGRAPHY ; CARBON SUPERCAPACITORS ; GAS EVOLUTION ; SPECTROSCOPY ; BEHAVIOR ; OXYGEN
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000297971200002
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6454
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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.
Files in This Item:
File Name/Size DocType Version Access License
Electrochemistry-201(1247KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[He, Lizhi]'s Articles
[Li, Jianling]'s Articles
[Gao, Fei]'s Articles
Baidu academic
Similar articles in Baidu academic
[He, Lizhi]'s Articles
[Li, Jianling]'s Articles
[Gao, Fei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[He, Lizhi]'s Articles
[Li, Jianling]'s Articles
[Gao, Fei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.