To inhibit decrease in charge discharge, storage and charge discharge cycle characteristics due to reduction of phosphorus atoms in a battery including lithium phosphorus oxynitride as a solid electrolyte, a transition metal element is incorporated into {HEAD ~ lithium phosphorus oxynitride} to prepare {TAIL ~ a solid electrolyte} 
To inhibit decrease in charge discharge , storage and charge discharge cycle characteristics due to reduction of phosphorus atoms in a battery including lithium phosphorus oxynitride as a solid electrolyte , a transition metal element is incorporated into { HEAD ~ lithium phosphorus oxynitride } to prepare { TAIL ~ a solid electrolyte }
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 OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL