Présentation au sujet: "NAME: Abdul Saleem Mir Enrollment Number: 49/2010 7th ELECTRICAL"— Transcription de la présentation:
1 NAME: Abdul Saleem Mir Enrollment Number: 49/2010 7th ELECTRICAL SUPERCAPACITORAs energy storage deviceThis template can be used as a starter file for presenting training materials in a group setting.SectionsRight-click on a slide to add sections. Sections can help to organize your slides or facilitate collaboration between multiple authors.NotesUse the Notes section for delivery notes or to provide additional details for the audience. View these notes in Presentation View during your presentation.Keep in mind the font size (important for accessibility, visibility, videotaping, and online production)Coordinated colorsPay particular attention to the graphs, charts, and text boxes.Consider that attendees will print in black and white or grayscale. Run a test print to make sure your colors work when printed in pure black and white and grayscale.Graphics, tables, and graphsKeep it simple: If possible, use consistent, non-distracting styles and colors.Label all graphs and tables.NAME: Abdul Saleem MirEnrollment Number: 49/20107th ELECTRICAL
2 Supercapacitor Definition Supercapacitors are electrochemical devices with following features:High energy density.High power density.High capacitance.Longer life
3 HISTORYThe first supercapacitor based on double layer mechanism was developed in 1957 by General Electric using porous electrode.Standard Oil Company Cleveland Ohio rediscovered this effect in 1966 & gave licensing to NEC in 1978 for market production.Give a brief overview of the presentation. Describe the major focus of the presentation and why it is important.Introduce each of the major topics.To provide a road map for the audience, you can repeat this Overview slide throughout the presentation, highlighting the particular topic you will discuss next.
4 Principle Construction It consists of following components:Current collector: Metal contacts are used as current collectors .
5 Polarized electrode: Highly activated carbon is used as electrode because of following reasons: It is highly porousIt has extraordinarily high specific surface areaIt has good conductivityHigh temperature and chemical stabilityCorrosion resistantThis is another option for an Overview slides using transitions.
6 ElectrolyteIt contains dissolved and solvated ions that migrate to and from the electrodes during charge and discharge respectively.Electrolytes are of two types:Water solubleWater insoluble
7 Separator It acts as mechanical separation between two electrodes. It must provide electronic insulation between the electrode of opposite polarizationIt must support ionic conductionfrom one electrode to another.
14 Applications Used in Diesel engine start up in submarines & tanks. Used to recover braking energy in HEV & modern trains and deliver the same during accelerating periods.Can be used in f &V control in power systemsUsed as backup energy source for GPS guided missiles
15 Flat style of super capacitor used for mobile devices. RadialTypical knob capacitorFor PCB mounting used for memory backupRadial style of lithium-Ion capacitor for PCB mounting used for industrial applications
17 ReferencesR.Morrison, ‘’The chemical physics of surfaces’’ New York: Plenum,1990.E.J.Dowgiallo & A.F.Bruke ‘’ Ultracapacitors for electric and hybrid vehicles: A technology update.’’B.E.Conway, ‘’Electrochemical Supercapacitors’’, chemical industry press.IEEE transactions on industry applications, vol. 36.‘’Transient analysis of pulsed charging in Supercapacitors’’ IEEE documentation.