Changes

An '''anode''' is the positive [[electrode]] in an [[electrochemical cell]] ([[battery]]). Also, the earth or ground in a [[cathodic protection]] system. Also, the positive terminal of a [[diode]].<ref>http://www1.eere.energy.gov/solar/solar_glossary.html</ref>

An '''anode''' is the positive [[electrode]] in an [[battery]].  As [[electron]]s flow through a closed electric [[circuit]] from the [[cathode]] to the anode, it experiences a buildup of negative charge. When this cancels out the anode's original positive charge, the battery has been exhausted and is no longer usable<ref>Zumdal, Steven S.  <u>Chemistry</u></ref>.

 

'''Anode''' can also refer to the positive terminal of any [[voltage]] difference<ref>http://www1.eere.energy.gov/solar/solar_glossary.html</ref>.

== References ==

== References ==

[[Category:Solar Energy]]

[[Category:Solar Energy]]