{HEAD ~ The invention} is also directed to {TAIL ~ the use} of poly SPPO as a surface coating for an electrode in an alkaline battery system, a metal oxide battery system, including manganese dioxide and nickel oxide, a zinc/bromine, or a zinc/air battery system 
is directed to
{ HEAD ~ The invention } is also directed to { TAIL ~ the use } of poly SPPO as a surface coating for an electrode in an alkaline battery system , a metal oxide battery system , including manganese dioxide and nickel oxide , a zinc / bromine , or a zinc / air battery system
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