Tsim los ntawm tus kws kho mob Fab Kis Gaston PlantéNyob rau hauv 1859, lead acid yog thawj rechargeable roj teeb rau coj mus muag siv.Txawm hais tias nws muaj hnub nyoog dhau los, cov tshuaj txhuas txhuas txuas ntxiv tau siv dav niaj hnub no.Muaj cov laj thawj zoo rau nws qhov chaw;lead acid yog kev vam khom thiab pheej yig ntawm tus nqi-ib-watt puag.Muaj ob peb lwm cov roj teeb uas xa cov fais fab loj li pheej yig li cov kua qaub, thiab qhov no ua rau cov roj teeb muaj txiaj ntsig zoo rau tsheb, tsheb golf, forklifts, marine thiab uninterruptible power supply (UPS).
Daim phiaj qauv ntawm cov hmoov lead acid roj teeb yog tsim los ntawm cov hlau lead.Cov hlau lead ntshiab yog mos heev thiab yuav tsis txhawb nws tus kheej, yog li cov khoom me me ntawm lwm cov hlau ntxiv kom tau txais cov neeg kho tshuab lub zog thiab txhim kho cov khoom hluav taws xob.Cov additives feem ntau yog antimony, calcium, tin thiab selenium.Cov roj teeb no feem ntau hu ua "lead-antimony" thiab "leadcalcium."
Ntxiv antimony thiab tin pab txoj kev sib sib zog nqus cycling tab sis qhov no ua rau kom cov dej haus thiab nce qhov xav tausib npaug.Calcium txo qhov tso tawm ntawm tus kheej, tab sis qhov zoo ntawm cov hlau lead-calcium phaj muaj cov kev mob tshwm sim ntawm kev loj hlob vim kab sib chaws oxidation thaum raug them tshaj.Niaj hnub nimno cov roj teeb cov kua qaub kuj tseem siv cov tshuaj doping xws li selenium, cadmium, tin thiab arsenic kom txo cov antimony thiab calcium cov ntsiab lus.
Lead acid hnyav thiab tsis tshua muaj zog dua li nickel- thiab lithium-based systems thaum sib sib zog nqus voj voog.Ib qho kev tso tawm tag nrho ua rau muaj kev nyuaj siab thiab txhua lub voj voog tawm / them nqi mus tas li ros lub roj teeb ntawm lub peev xwm me me.Qhov kev poob no yog me me thaum lub roj teeb nyob rau hauv kev ua haujlwm zoo, tab sis qhov fading nce thaum qhov kev ua tau zoo poob mus rau ib nrab ntawm lub peev xwm nominal.Cov yam ntxwv hnav-down no siv rau txhua lub roj teeb hauv ntau qib.
Nyob ntawm qhov tob ntawm qhov tso tawm, cov kua qaub rau cov ntawv thov sib sib zog nqus muab 200 mus rau 300 tawm tawm / them mus.Cov laj thawj tseem ceeb rau nws lub neej luv luv yog daim phiaj corrosion ntawm qhov zoo electrode, depletion ntawm cov khoom nquag thiab nthuav dav ntawm cov phiaj zoo.Qhov tshwm sim kev laus no yog nrawm nrawm ntawm kev ua haujlwm siab thiab thaum nqus cov pa tawm siab.
Them lub roj teeb ua kua qaub yog qhov yooj yim, tab sis qhov tseeb voltage txwv yuav tsum tau soj ntsuam.Xaiv qhov tsis tshua muaj hluav taws xob txwv tiv thaiv lub roj teeb, tab sis qhov no ua rau kev ua haujlwm tsis zoo thiab ua rau muaj sulfation ntawm cov phaj tsis zoo.Lub siab voltage txwv txhim kho kev ua tau zoo tab sis ua rau daim phiaj corrosion ntawm lub phaj zoo.Thaum sulfation tuaj yeem thim rov qab yog tias tau txais kev pabcuam hauv lub sijhawm, corrosion yog ruaj khov.
Lead acid tsis qiv nws tus kheej kom them sai sai thiab nrog rau ntau hom, tus nqi tag nrho yuav siv sijhawm 14-16 teev.Lub roj teeb yuav tsum ib txwm muab khaws cia ntawm lub xeev-ntawm-tus nqi tag nrho.Tsawg nqi ua rau sulfation, ib qho mob uas ua rau lub roj teeb ntawm kev ua haujlwm.Ntxiv cov pa roj carbon rau ntawm qhov tsis zoo electrode txo qhov teeb meem no tab sis qhov no txo qis lub zog tshwj xeeb.
Lead acid muaj lub neej nyob nruab nrab, tab sis nws tsis raug rau lub cim xeeb raws li cov nickel-based systems, thiab cov nqi khaws cia yog qhov zoo tshaj plaws ntawm cov roj teeb rov qab.Thaum NiCd poob kwv yees li 40 feem pua ntawm lawv lub zog khaws cia hauv peb lub hlis, cov kua qaub ua rau nws tus kheej tso tawm tib tus nqi hauv ib xyoos.Lub roj teeb ua kua qaub ua haujlwm zoo ntawm qhov txias txias thiab zoo dua li lithium-ion thaum ua haujlwm hauv subzero.Raws li RWTH, Aachen, Lub teb chaws Yelemees (2018), tus nqi ntawm cov kua qaub dej nyab yog kwv yees li $ 150 ib kWh, yog ib qho qis tshaj hauv cov roj teeb.
Post lub sij hawm: Nov-13-2021