uring . ▁The ▁two ▁China ▁locations ▁provide ▁nick el - z inc ▁battery ▁design , ▁development , ▁testing ▁and ▁high ▁volume ▁battery ▁manufact uring ▁operations . ▁ ▁As ▁of ▁ 2 0 1 8 , ▁Z inc F ive ▁has ▁commer cially ▁available ▁products ▁using ▁nick el - z inc ▁batter ies ▁in ▁the ▁intellig ent ▁transport ation ▁and ▁mission ▁critical ▁IT / data ▁center ▁mark ets ▁in ▁the ▁form ▁of ▁un inter rupt ible ▁power ▁supplies . ▁Also ▁available ▁is ▁nick el - z inc ▁batter ies ▁for ▁station ary , ▁mot ive ▁and ▁start - stop ▁applications . ▁ ▁See ▁also ▁ ▁B atter y ▁rec y cling ▁ ▁The ▁ 2 0 0 0 s ▁comm od ities ▁bo om ▁ ▁I - re cycle ▁Power Gen ix ▁acquired ▁by ▁Z inc F ive , ▁Inc . ▁ ▁References ▁ ▁Category : B atter y ▁manufact ur ers ▁Category : E lect ric ▁vehicle ▁battery ▁manufact ur ers ▁Category : N ick el ▁Category : Comp an ies ▁based ▁in ▁San ▁Diego <0x0A> </s> ▁Cur vil ine ar ▁coordinates ▁can ▁be ▁form ulated ▁in ▁tensor ▁calculus , ▁with ▁important ▁applications ▁in ▁physics ▁and ▁engineering , ▁particularly ▁for ▁describing ▁transport ation ▁of ▁physical ▁quantities ▁and ▁de formation ▁of ▁matter ▁in ▁fluid ▁mechan ics ▁and ▁continu um ▁mechan ics . ▁ ▁Vector ▁and ▁tensor ▁algebra ▁in ▁three - dimensional ▁cur vil ine ar ▁coordinates ▁ ▁Element ary ▁vector ▁and ▁tensor ▁algebra ▁in ▁cur vil ine ar ▁coordinates ▁is ▁used ▁in ▁some ▁of