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