Dab tsi yog Cov Roj Teeb Tseem Ceeb?

qhuav cell roj teeb
Cov roj teeb qhuav tseem hu ua manganese-zinc roj teeb. Lub npe hu ua cov roj teeb qhuav yog txheeb ze rau cov roj teeb hluav taws xob, thiab lub npe hu ua manganese-zinc yog hais txog lawv cov khoom siv raw. Rau cov roj teeb qhuav ua los ntawm lwm cov ntaub ntawv xws li nyiaj oxide roj teeb thiab nickel-cadmium roj teeb. Qhov voltage ntawm manganese-zinc roj teeb yog 1.5V. Cov roj teeb qhuav siv cov khoom siv tshuaj lom neeg los tsim hluav taws xob hluav taws xob. Nws qhov hluav taws xob tsis siab thiab qhov tsis tu ncua tam sim no nws tuaj yeem tsim tsis tau tshaj 1 amp.
Lead acid roj teeb
Lub roj teeb yog ib qho ntawm cov roj teeb uas siv ntau tshaj plaws. Siv lub khob los yog yas tank, sau nrog sulfuric acid, thiab ntxig ob daim hlau lead. Ib qho yog txuas nrog qhov zoo electrode ntawm lub charger, thiab lwm qhov yog txuas nrog qhov tsis zoo electrode ntawm lub charger. Tom qab ntau tshaj kaum teev ntawm kev them nyiaj, lub roj teeb tsim. Nws muaj 2 volts ntawm nws qhov zoo thiab tsis zoo terminals. Qhov zoo ntawm cov roj teeb yog tias lawv tuaj yeem siv tau ntau zaus. Tsis tas li ntawd, vim nws qhov kev tiv thaiv sab hauv yog qhov me me, nws tuaj yeem muab cov tam sim no loj. Siv nws los ua lub zog ntawm lub tsheb lub cav, thiab qhov tam sim no tuaj yeem ncav cuag ntau dua 20 amps. Lub roj teeb khaws cov hluav taws xob hluav taws xob thaum them nyiaj, thiab hloov hluav taws xob tshuaj mus rau hauv hluav taws xob hluav taws xob thaum tso tawm. [1]
lithium roj teeb
Roj teeb nrog lithium raws li qhov tsis zoo electrode. Nws yog hom tshiab ntawm cov roj teeb muaj zog tau tsim tom qab xyoo 1960. Raws li cov electrolyte siv, nws muab faib ua:
① Kub kub molten ntsev lithium roj teeb;
② Organic electrolyte lithium roj teeb;
③Inorganic non-aqueous electrolyte lithium roj teeb;
④ Cov khoom siv electrolyte lithium roj teeb;
⑤ Lithium-dej roj teeb.
Qhov zoo ntawm cov roj teeb lithium yog qhov siab ib leeg ntawm tes, lub zog tshwj xeeb, lub neej ntev ntev (txog 10 xyoo), kev ua haujlwm siab thiab kub qis, thiab tuaj yeem siv tau ntawm -40 ~ 150 degree . Qhov tsis zoo yog tias nws kim heev thiab tsis muaj kev nyab xeeb heev. Tsis tas li ntawd, voltage lag thiab teeb meem kev nyab xeeb yuav tsum tau txhim kho. Kev loj hlob ntawm cov roj teeb muaj zog thiab qhov tshwm sim ntawm cov khoom siv cathode tshiab, tshwj xeeb tshaj yog kev tsim cov khoom siv lithium hlau phosphate, yog qhov kev pab zoo rau kev tsim cov roj teeb lithium.