The encapsulant layer is formed from a material which, upon oxidation during {TAIL ~ processing} or during {HEAD ~ charging} of the electrode, is convertible to a highly conductive form, and which, upon subsequent discharge of the electrode, does not revert to its previous form 
The encapsulant layer is formed from a material which , upon oxidation during { TAIL ~ processing } or during { HEAD ~ charging } of the electrode , is convertible to a highly conductive form , and which , upon subsequent discharge of the electrode , does not revert to its previous form
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