ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Super-capacitors are new equipments for energy storage,and they have wide applicationin practice. At present, blanking is used to machining the electrodes of super-capacitor; however,the disadvantages of the method are burrs, electrode collapse. A new method processing electrode ofsuper-capacitor, wire electrical discharge machining in gas (dry WEDM), were presented in thispaper, and the electrode surface morphologies were studied utilizing scan electron microscope(SEM). First, the surface morphologies comparison studies of super-capacitor electrodes processedwith different method, such as shearing, blanking and dry WEDM etc., were performed, andresearch results show that the super-capacitor electrode surfaces machined by dry WEDM achieveflat machining surface, and electrode edges do not collapse. Further surface morphology analysiswas carried out based on different pulse durations and air pressure, and analysis results indicate thatbetter machining surface can be achieved when suitable pulse duration and gas pressure are selected.Finally, surface energy spectrum analysis of the super-capacitor electrode processed by dry WEDMis performed, and the analysis result show that alumina are formed on the middle of electrode,aluminum foil, which is favored to the performance of super-capacitor
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.375-376.401.pdf
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