A positive active material for {TAIL ~ 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 yttrium 
A positive active material for { TAIL ~ 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 yttrium
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH