Nrog rau kev txhim kho txuas ntxiv ntawm lub zog tshiab tsheb, cov roj teeb hluav taws xob kuj tau txais kev saib xyuas ntau dua. Roj teeb, lub cev muaj zog thiab hluav taws xob tswj qhov system yog peb lub hauv paus tseem ceeb ntawm lub zog tshiab tsheb, ntawm cov roj teeb lub zog yog qhov tseem ceeb tshaj plaws, tuaj yeem hais tias yog "lub siab" ntawm lub zog tshiab tsheb, tom qab ntawd lub roj teeb ntawm lub zog tshiab. muab faib ua pawg twg?
1, lead-acid roj teeb
Lub roj teeb lead-acid (VRLA) yog lub roj teeb uas nws cov electrodes feem ntau yog ua los ntawm txhuas thiab nws cov oxides, thiab nws cov electrolyte yog sulfuric acid tov. Lub ntsiab tseem ceeb ntawm qhov zoo electrode yog lead dioxide, thiab lub ntsiab ntawm qhov tsis zoo electrode yog txhuas. Nyob rau hauv lub xeev tawm, lub ntsiab tseem ceeb ntawm ob qho tib si zoo thiab tsis zoo electrodes yog lead sulfate. Lub nominal voltage ntawm ib lub xov tooj ntawm tes lead-acid roj teeb yog 2.0V, tuaj yeem tawm mus rau 1.5V, tuaj yeem them rau 2.4V; Hauv cov ntawv thov, 6 ib leeg-cell lead-acid roj teeb feem ntau txuas nrog hauv cov koob los tsim cov roj teeb nominal lead-acid ntawm 12V, nrog rau 24V, 36V, 48V, thiab lwm yam.
Nickel-cadmium roj teeb (feem ntau abbreviated NiCd, pronounced "nye-cad") yog hom nrov ntawm cov roj teeb cia. Lub roj teeb siv nickel hydroxide (NiOH) thiab cadmium hlau (Cd) ua tshuaj los tsim hluav taws xob. Txawm hais tias qhov kev ua tau zoo zoo dua li cov roj ntsha lead-acid, lawv muaj cov hlau hnyav thiab ua paug rau ib puag ncig tom qab raug tso tseg.
Nickel-cadmium roj teeb tuaj yeem rov ua dua 500 zaug ntawm kev them nqi thiab tawm, kev lag luam thiab ruaj khov. Nws cov kev tiv thaiv sab hauv yog me me, tsis yog tsuas yog kev tiv thaiv sab hauv me me xwb, tuaj yeem them sai sai, tab sis kuj tuaj yeem muab cov tam sim no loj rau cov khoom thauj, thiab qhov hloov hluav taws xob tsawg heev thaum tso tawm, yog lub roj teeb zoo tshaj plaws DC fais fab mov. Piv nrog rau lwm hom roj teeb, nickel-cadmium roj teeb tuaj yeem tiv taus overcharge lossis overdischarge.
Nickel-hlau hydride roj teeb yog tsim los ntawm hydrogen ions thiab hlau npib tsib xee, lub zog cia yog 30% ntau dua li cov roj teeb nickel-cadmium, sib dua li cov roj teeb nickel-cadmium, lub neej ntev kev pab cuam, thiab tsis muaj kuab paug rau ib puag ncig, tab sis tus nqi yog ntau. kim tshaj nickel-cadmium roj teeb.
Lithium roj teeb yog ib chav kawm ntawm lithium hlau los yog lithium alloy raws li cov khoom siv tsis zoo electrode, kev siv cov tshuaj tsis muaj dej electrolyte ntawm lub roj teeb. Cov roj teeb lithium tuaj yeem muab faib ua ob pawg: lithium hlau roj teeb thiab lithium ion roj teeb. Cov roj teeb lithium-ion tsis muaj lithium nyob rau hauv lub xeev nws yog xim hlau thiab yog rechargeable.
Cov roj teeb lithium hlau feem ntau yog cov roj teeb uas siv manganese dioxide ua cov khoom siv hluav taws xob zoo, lithium hlau lossis nws cov hlau alloy ua cov khoom tsis zoo electrode, thiab siv cov kev daws teeb meem tsis muaj dej. Cov khoom muaj pes tsawg leeg ntawm lithium roj teeb feem ntau yog: cov khoom zoo electrode, cov khoom tsis zoo electrode, diaphragm, electrolyte.
Ntawm cov khoom siv cathode, cov khoom siv feem ntau yog lithium cobaltate, lithium manganate, lithium hlau phosphate thiab ternary cov ntaub ntawv (nickel-cobalt-manganese polymers). Cov khoom siv hluav taws xob zoo nyob hauv qhov loj (qhov loj ntawm qhov zoo thiab qhov tsis zoo ntawm cov khoom siv hluav taws xob yog 3: 1 ~ 4: 1), vim tias qhov ua tau zoo ntawm cov khoom siv electrode ncaj qha cuam tshuam rau kev ua haujlwm ntawm lithium-ion roj teeb, thiab nws cov nqi. ncaj qha txiav txim tus nqi ntawm lub roj teeb.
Ntawm cov ntaub ntawv tsis zoo electrode, cov ntaub ntawv tsis zoo electrode tam sim no feem ntau yog ntuj graphite thiab graphite dag. Cov ntaub ntawv anode uas tau tshawb fawb yog nitrides, PAS, tin-based oxides, tin alloys, nano-anode cov ntaub ntawv, thiab lwm yam intermetallic compounds. Raws li ib qho ntawm plaub yam tseem ceeb ntawm cov roj teeb lithium, cov khoom siv hluav taws xob tsis zoo ua lub luag haujlwm tseem ceeb hauv kev txhim kho roj teeb muaj peev xwm thiab kev ua haujlwm ntawm lub voj voog, thiab yog nyob rau hauv lub hauv paus ntawm nruab nrab mus txog ntawm lithium roj teeb kev lag luam.
Roj Cell yog cov txheej txheem tsis-combustion electrochemical zog hloov khoom siv. Cov tshuaj siv hluav taws xob ntawm hydrogen (lwm cov roj) thiab cov pa oxygen txuas ntxiv mus rau hauv hluav taws xob. Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog tias H2 yog oxidized rau hauv H + thiab e- nyob rau hauv qhov kev txiav txim ntawm anode catalyst, H + mus txog qhov zoo electrode los ntawm proton exchange membrane, reacts nrog O2 los tsim dej ntawm lub cathode, thiab e- mus txog lub cathode los ntawm lub sab nraud Circuit Court, thiab cov tshuaj tiv thaiv tas li generates ib tug tam sim no. Txawm hais tias cov roj cell muaj lo lus "roj teeb", nws tsis yog lub zog cia khoom nyob rau hauv cov kev xav ib txwm muaj, tab sis lub zog tsim khoom, uas yog qhov sib txawv loj tshaj ntawm cov roj hlwb thiab cov roj teeb ib txwm muaj.
Thermal shock test chamber: Lub chamber no simulates qhov kub thiab txias hloov ceev uas cov roj teeb yuav ntsib thaum lub sijhawm ua haujlwm. Los ntawm kev nthuav tawm cov roj teeb rau qhov kub hloov pauv, xws li hloov pauv sai sai ntawm qhov kub thiab txias, peb tuaj yeem ntsuas lawv qhov kev ua tau zoo thiab kev ntseeg tau raws li qhov kub thiab txias.
Xenon teeb aging chamber: Cov khoom siv no rov ua dua lub hnub ci teeb pom kev zoo los ntawm kev nthuav tawm cov roj teeb rau lub teeb hluav taws xob hnyav los ntawm xenon teeb. Qhov kev simulation no pab ntsuas lub roj teeb qhov kev ua haujlwm tsis zoo thiab ua haujlwm ntev thaum raug lub teeb ntev ntev.
UV aging test chamber: Lub chamber no ua raws li qhov chaw tiv thaiv hluav taws xob ultraviolet. Los ntawm kev muab cov roj teeb rau UV lub teeb raug, peb tuaj yeem simulate lawv cov kev ua tau zoo thiab ua haujlwm ntev nyob rau hauv lub sijhawm ntev UV raug mob.
Kev siv cov khoom siv sib xyaw ua ke no tso cai rau kev qaug zog thiab kev sim ntawm lub neej ntawm cov roj teeb. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias ua ntej ua cov kev ntsuam xyuas no, nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov lus qhia txog kev nyab xeeb thiab ua raws li cov lus qhia ua haujlwm ntawm cov cuab yeej kuaj xyuas kom meej thiab muaj kev nyab xeeb.
Post lub sij hawm: Sep-12-2023
