roj teeb lithium yog ib puag ncig tus phooj ywg, lub zog siv zog, tuaj yeem ua haujlwm tau ntev yam tsis tau them rov qab, thiab ua haujlwm ntawm qhov kub qis. Txij li thaum lawv muaj zog heev, thiab qhov no distinguishes lawv nyiam los ntawm lwm yam khoom siv zoo sib xws, lawv cov khoom tau nce tas li. Lawv muaj nyob rau hauv cylindrical thiab prismatic duab.
Lawv siv hauv laptops, xov tooj ntawm tes thiab lwm yam khoom siv nqa tau. Lawv cov kev khiav hauj lwm voltage yog hais txog plaub volts. Lawv ua haujlwm hauv qhov kub ntawm -20 txog +60 ° C. Tseem muaj cov roj teeb lithium uas tuaj yeem ua haujlwm ntawm qhov kub ntawm -40 ° C. Kev ua haujlwm tseem tab tom ua kom nthuav dav qhov kub zoo. Lawv tus kheej tso tawm hauv thawj lub hlis ntawm kev ua haujlwm yog 4-6%, tom qab ntawd daim duab no txo qis, thiab hauv ib xyoos lawv poob txog li nees nkaum feem pua ntawm lawv lub peev xwm. Cov yam ntxwv no zoo dua li cov nickel-cadmium version. Lawv tuaj yeem kav ntev li ntawm 500 mus rau 1000 lub voj voog, tab sis lawv tus lej nyob ntawm tus nqi ntawm qhov txwv kev them nqi hluav taws xob.
AA hom roj teeb lithium yog siv rau txhua yam khoom siv uas muaj qhov tshwj xeeb rau AA roj teeb. Muaj lithium polymer thiab lithium ionaccumulators. Cov qub muaj kev nyab xeeb dua, muaj qhov me me thiab tuaj yeem ua tau zoo, vim lawv tsis muaj cov kua electrolyte. Lub cev rau lawv yog ua los ntawm metallized polymer. Thiab tam sim no feem ntau ntawm cov neeg sawv cev ntawm cov roj teeb no tau muag hauv qhov kev taw qhia tshwj xeeb nrog helium electrolyte. Qhov tsis zoo yog qhov rhiab heev rau overcharging, txij li thaum nrog kev nce hauv qhov tso tawm tam sim no, kev khiav hauj lwm voltage txo. Khaws cov cuab yeej no ntawm chav tsev kub, them tag nrho thiab rov them dua ib xyoos ib zaug. Vim hais tias yog tias qhov no tsis ua tiav, ces overdischarge yuav tshwm sim. Tsis muaj peev xwm thaum khaws cia tshwm sim vim cov tshuaj tiv thaiv ntawm cov electrolyte nrog cov electrodes. Tom qab ob peb lub hlis ntawm kev cia, lub roj teeb voltage yuav txo qis, vim li ntawd, lub charger yuav tsis tuaj yeem them nws.
Charging
roj teeb lithium raug them ua ntej ntawm qhov tam sim no mus rau qhov hluav taws xob ntawm 4.2 V, thiab tom qab ntawd ntawm qhov hluav taws xob tas li. Lawv muaj tsawg tsis kam mus overdischarge. Qhov no ua rau qhov kub thiab txias hauv rooj plaub. Thiab nws tuaj yeem depressurized. Yog li ntawd, lawv yuav tsum raug them mus rau theem pom zoo los ntawm phau ntawv qhia. Nws yog teeb meem heev los ua kom qhov voltage thaum them, yog li koj tuaj yeem txo lub neej ntawm lub cuab yeej.
Txoj Cai Ua Haujlwm
Lithium roj teeb muaj lub neej ntev ntawm 2-3 xyoos. Thiab qhov no tsis yog nyob ntawm seb lawv tau siv ntau npaum li cas. Lawv yuav tsum tsis txhob khaws cia rau qhov chaw ntev, tab sis yog npaj rau kev ua haujlwm tas mus li.
Lawv muaj kev tiv thaiv tshwj xeeb tiv thaiv kev tso tawm ntau dhau thiab tso tawm tob, yog li lawv tuaj yeem nyob hauv lub charger thiab khoom siv txhua lub sijhawm.
Yog tias yuav khaws lub roj teeb rau 1 lub hlis, nws yuav tsum tau them tag nrho. Qhov ntsuas kub yuav tsum nyob nruab nrab ntawm +5 ° C thiab + 20 ° C. Yog tias koj khaws nws hauv lub xeev tso tawm, tom qab ob lub hlis nws yuav ua tsis tiav.
Nws yog qhov zoo dua tsis txhob khaws lub cuab yeej ntawm qhov kub qis dua -10 ° C, vim qhov no yuav txo tau lub sijhawm ua haujlwm ntawm lub cuab yeej siv los ntawm nws. Thaum kub hauv qab +5 ° C, nws yuav tsis tuaj yeem them tag nrho. Thiab ntawm qhov kub siab tshaj +40 °, lub roj teeb tawm sai heev.
