2024 Tus sau: Priscilla Miln | [email protected]. Kawg hloov kho: 2024-02-18 01:33
Lithium roj teeb, raws li lub npe qhia, khiav ntawm cov hlau alkali mos hu ua "lithium". Cov khoom siv ntuj no yog qhov lightest ntawm tag nrho cov paub hlau. Nws yog sib dua li dej, yog li ntawd, nws yog buoyant, tsis tsuas yog nyob rau hauv aqueous daws, tab sis txawm nyob rau hauv kerosene. Raws li, lithium muaj qhov dav tshaj plaws electrochemical muaj peev xwm, uas tso cai rau peb kom muaj kev nyab xeeb txog nws cov hlau nquag tshaj plaws.
roj teeb lithium, tsim los ntawm nws lub hauv paus, muaj qhov hnyav-dav tsis zoo, nrog rau lub zog loj heev.
Qhov zoo tseem ceeb uas txhua lub roj teeb lithium muaj yog:
- Me me rau tus kheej them tam sim no. Qhov no tso cai rau ua kom lub neej ua haujlwm hauv lub xeev tsis muaj zog los ntawm ob peb zaug piv rau alkaline counterparts.
- Tsis xav tau kev rov ua kom raws sijhawm los ntawm lub zog sab nraud.
- Yuav ua li cas tsis muaj peev xwm poob ntawm qhov ntsuas kub qis, uas ua rau cov roj teeb lithium tseem ceeb hauv Far North.
- Long service life.
- Me memas.
Cov neeg tsim khoom tsim cov roj teeb lithium nrog cov tshuaj sib txawv, uas tso cai rau koj kom tau txais cov khoom tsom mus rau qhov sib txawv ntawm kev khiav hauj lwm voltages, nrog rau muaj zog sib txawv.
Cov hom roj teeb lithium feem ntau yog:
1. Li-MnO2 nrog rau qhov nominal voltage ntawm 3 V. Hom ntau tshaj. Nws muaj lub peev xwm siab thiab qhov ntsuas kub tseem ceeb ntawm kev siv. Muaj peev xwm xa cov tam sim no tseem ceeb.
2. Li-FeS2 los yog lithium hlau disulfide roj teeb. Lawv muaj rau 1.5 V thiab yog lwm txoj hauv kev zoo rau cov roj ntsha ntsev thiab alkaline. Tus nqi qis ntawm qhov ntsuas hluav taws xob tso cai rau lawv siv ncaj qha rau hauv cov khoom siv.
Qhov zoo ntawm hom roj teeb no yog raws li hauv qab no:
A) Txog 4 npaug lub neej ntev dua li cov roj teeb alkaline.
B) Nyhav 30%.
B) cov zis tam sim no.
D) Lub neej txee ntev tshaj 10 xyoo.
Tseem muaj ib qho teeb meem: tus nqi siab.
3. Li-Ion los yog lithium-ion roj teeb. Lawv yog tsim rau lub nominal voltage ntau ntawm 3.5 mus rau 4 V. Nyob rau hauv cov khoom siv fais fab ntawm hom no, nws yog xim hlau lithium hloov los ntawm nws cov ions, uas ua rau lawv cov hauj lwm zoo dua. Hom roj teeb no muaj peev xwm rov qab tau, yog li lawv feem ntau hu ua accumulators. Lawv tsis raug rau qhov hu ua "nco nyhuv" thiabmuaj lub zog ua haujlwm siab. Hauv hom tsis muaj zog, kev tso tawm tus kheej tshwm sim, uas yog kwv yees li 5 feem pua ntawm ib hlis. rhiab heev rau qhov kub thiab txias.
Vim lithium yog cov hlau nquag, kev tsim cov roj teeb lithium feem ntau cuam tshuam los ntawm kev ruaj ntseg tshwj xeeb. Cov hlau no nquag cuam tshuam nrog dej, ua rau tso tawm hydrogen thiab alkali. Tsis tas li ntawd, kev sib xyaw nrog oxygen yuav tsum tsis txhob tso cai vim qhov no tuaj yeem ua rau tawg.
Pom zoo:
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