Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electrochemical capacitors/ ionic dielectrics ?

  1. May 28, 2008 #1
    I'm reading about electrochemical capacitors here:
    httpCOLON//electrochemDOTcwruDOTedu/ed/encycl/art-c03-elchem-cap.htm (Website won't let me post a URL until I've made 15 posts...)

    Do electro chemical capacitors actually store charge indefinitely ? Or do they deplete as soon as the charging electric field is removed ?

    I wonder this because the operating dielectric seems to be an ionic medium and wouldn't the ions promote conductivity between the positive and negative plates and thus wouldn't the capacitor self discharge ?

    Can an ionic material be a dielectric and if so, why doesn't the capacitor self discharge ?

    Thanks
     
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Loading...