Electrochemical capacitors

The image shows a portable super capacitor battery bank. Credit: Mashpedia.

"Electrochemical capacitors, also called supercapacitors, store energy using either ion adsorption (electrochemical double layer capacitors) or fast surface redox reactions (pseudo-capacitors)."[1]

Electrochemistry

"The discovery that ion desolvation occurs in pores smaller than the solvated ions has led to higher capacitance for electrochemical double layer capacitors using carbon electrodes with subnanometre pores, and opened the door to designing high-energy density devices using a variety of electrolytes."[1]

Planetary sciences

For a capacitor in an electrical or electronic circuit, charge balance occurs within the capacitor. But, for a planetary capacitor with a variable charge between the spherical plates, the charge between the plates should be negative. The bleed out of positive charges allows the full internal surface of a super capacitor to be used for negative charge only.

Materials

"The chloride permeability of Type V cement concrete specimens was in the range of 2,700 to 3,300 coulombs, putting these concretes in the moderate permeability classification, according to ASTM C1202."[2]

"The electrical resistivity of concrete decreases both due to the presence of moisture and chloride ions."[2]

"AASHTO T277 and ASTM C1202 have specified a rapid test method to rank the chloride penetration resistance of various concretes by applying a potential of 60 V DC to a concrete specimen and measuring the charge passed through the specimen during six hours of testing."[3]

Original research

Hypothesis:

  1. Supercapacitors may provide a material which can be used to make a charge storage device for up to 1013 coulombs.

See also

References

External links

This is a research project at http://en.wikiversity.org

Educational level: this is a research resource.
Resource type: this resource is an article.
Resource type: this resource contains a lecture or lecture notes.
Subject classification: this is a chemistry resource .
Subject classification: this is an engineering resource .
Subject classification: this is a materials science resource.
Subject classification: this is a physics resource .
Subject classification: this is a technology resource .
This article is issued from Wikiversity - version of the Thursday, March 31, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.