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