The present invention has been made to solve these problems, and provides an all solid state polymer electrolyte having high ion conductivity achieved by the selection of a specific polymer material or a gel state polymer electrolyte having high ion conductivity achieved by the addition of a solvent in {HEAD ~ small enough amounts} to prevent {TAIL ~ the reduction} of the reliability 
to prevent
The present invention has been made to solve these problems , and provides an all solid state polymer electrolyte having high ion conductivity achieved by the selection of a specific polymer material or a gel state polymer electrolyte having high ion conductivity achieved by the addition of a solvent in { HEAD ~ small enough amounts } to prevent { TAIL ~ the reduction } of the reliability
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