The problem has been solved by the use of polymer electrolyte having a ketonic carbonyl group wherein the weight ratio of the ketonic carbonyl group is in the range of {HEAD ~ 15 to 50 wt %} based on {TAIL ~ the weight} of the polymer material 
based on
The problem has been solved by the use of polymer electrolyte having a ketonic carbonyl group wherein the weight ratio of the ketonic carbonyl group is in the range of { HEAD ~ 15 to 50 wt % } based on { TAIL ~ the weight } of the polymer material
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 HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH