book ▁▁▁ ▁For ▁illustr ations ▁see : ▁El ph id ium , ▁World ▁Modern ▁For amin if era ▁Database ▁ ▁Further ▁reading ▁▁▁▁ ▁Category : El ph idi idae ▁Category : Rot ali ida ▁gener a ▁Category : C en oz o ic ▁life ▁Category : Ext ant ▁E oc ene ▁first ▁appearances <0x0A> </s> ▁Power Gen ix , ▁was ▁a ▁San ▁Diego - based ▁company ▁developing ▁and ▁manufact uring ▁Nick el - z inc ▁( N i Z n ) ▁re charge able ▁batter ies , ▁prior ▁to ▁being ▁acquired ▁by ▁Z inc F ive , ▁Inc . ▁in ▁ 2 0 1 6 . ▁Z inc F ive ▁manufact ur ers ▁cell ▁and ▁mon ob loc ▁nick el - z inc ▁batter ies ▁and ▁is ▁the ▁world ▁leader ▁in ▁innov ation ▁and ▁delivery ▁of ▁nick el - z inc ▁battery - based ▁un inter rupt ible ▁power ▁supplies ▁for ▁mission ▁critical ▁applications ▁in ▁Data ▁Cent ers ▁and ▁Int ellig ent ▁Transport ation ▁and ▁offer ▁batter ies ▁for ▁station ary , ▁mot ive ▁and ▁start - stop ▁applications . ▁With ▁ 9 5 ▁pat ents ▁awarded , ▁Z inc F ive ▁lever ages ▁nick el - z inc ▁chem istry ▁within ▁its ▁solutions ▁to ▁provide ▁high ▁power ▁density ▁and ▁performance ▁simultane ous ▁with ▁superior ▁safety ▁and ▁environmental ▁advantages . ▁ ▁Z inc F ive ▁has ▁global ▁operations ▁in ▁the ▁US ▁and ▁China . ▁The ▁location ▁near ▁Port land , ▁OR ▁serves ▁as ▁corpor ate ▁headquarters ▁and ▁U PS ▁solutions ▁design ▁and ▁manufact