A positive active material for nickel electrodes of alkaline storage batteries consists of {HEAD ~ particles} of hydroxide containing mainly nickel and covered with a layer of a hydroxide phase based on nickel and {TAIL ~ yttrium} 
A positive active material for nickel electrodes of alkaline storage batteries consists of { HEAD ~ particles } of hydroxide containing mainly nickel and covered with a layer of a hydroxide phase based on nickel and { TAIL ~ yttrium }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL