Lithium roj teebhais tias tsis yooj yim, qhov tseeb, nws tsis yog qhov nyuaj heev, hais yooj yim, qhov tseeb, nws tsis yooj yim. Yog tias koom nrog hauv kev lag luam no, ces nws yog ib qho tsim nyog yuav tsum paub qee cov ntsiab lus siv hauv kev lag luam roj teeb lithium, nyob rau hauv cov ntaub ntawv no, dab tsi yog cov ntsiab lus siv hauv kev lag luam roj teeb lithium?
Cov lus siv dav siv hauv kev lag luam roj teeb lithium
1.Charge-Rate/Discharge-Rate
Qhia ntau npaum li cas tam sim no kom them thiab tso tawm, feem ntau suav tias yog ntau yam ntawm lub peev xwm nominal ntawm lub roj teeb, feem ntau hu ua ob peb C. Zoo li lub roj teeb uas muaj peev xwm ntawm 1500mAh, nws tau teev tseg tias 1C = 1500mAh, yog tias tso tawm nrog 2C tseem tso tawm nrog tam sim no ntawm 3000mA, 0.1C them thiab tawm yog them thiab tawm nrog 150mA.
2.OCV: Qhib Circuit Court Voltage
Qhov voltage ntawm lub roj teeb feem ntau yog hais txog qhov nominal voltage (tseem hu ua qhov ntsuas hluav taws xob) ntawm lithium roj teeb. Lub nominal voltage ntawm ib tug zoo tib yam lithium roj teeb yog feem ntau 3.7V, thiab peb kuj hu nws voltage platform 3.7V. Los ntawm voltage peb feem ntau xa mus rau qhov qhib Circuit Court voltage ntawm lub roj teeb.
Thaum lub roj teeb yog 20 ~ 80% ntawm lub peev xwm, qhov voltage yog concentrated nyob ib ncig ntawm 3.7V (nyob ib ncig ntawm 3.6 ~ 3.9V), siab dhau heev lawm los yog tsawg muaj peev xwm, qhov voltage txawv dav.
3. Zog / Fais fab
Lub zog (E) uas lub roj teeb tuaj yeem tso tawm thaum tso tawm ntawm tus qauv, hauv Wh (watt teev) lossis KWh (kilowatt teev), ntxiv rau 1 KWh = 1 kWh ntawm hluav taws xob.
Lub tswv yim yooj yim muaj nyob rau hauv phau ntawv physics, E = U * I * t, uas kuj yog sib npaug ntawm lub roj teeb voltage muab faib los ntawm lub peev xwm ntawm lub roj teeb.
Thiab cov qauv rau lub zog yog, P = U * I = E / t, uas qhia txog lub zog uas tuaj yeem tso tawm ib chav tsev ntawm lub sijhawm. Chav tsev yog W (watt) lossis KW (kilowatt).
Ib lub roj teeb uas muaj peev xwm ntawm 1500 mAh, piv txwv li, muaj qhov nominal voltage ntawm feem ntau 3.7V, yog li lub zog sib xws yog 5.55Wh.
4. Kev tiv thaiv
Raws li tus nqi thiab tso tawm tsis tuaj yeem sib npaug rau qhov zoo tshaj plaws fais fab mov, muaj qee yam kev tiv thaiv sab hauv. Internal kuj siv zog thiab ntawm chav kawm qhov me me lub internal kuj zoo dua.
Internal resistance ntawm lub roj teeb yog ntsuas hauv milliohms (mΩ).
Sab hauv tsis kam ntawm lub roj teeb dav dav muaj ohmic sab hauv tsis kam thiab polarized sab hauv tsis kam. Qhov loj ntawm qhov tsis kam sab hauv yog cuam tshuam los ntawm cov khoom siv ntawm lub roj teeb, cov txheej txheem tsim khoom, thiab cov qauv ntawm lub roj teeb.
5. Lub neej voj voog
Lub roj teeb them thiab tso tawm ib zaug hu ua lub voj voog, lub voj voog lub neej yog qhov tseem ceeb ntawm kev ua haujlwm ntawm lub roj teeb. Tus qauv IEC tau teev tseg tias rau lub xov tooj ntawm tes lithium roj teeb, 0.2C tawm mus rau 3.0V thiab 1C them rau 4.2 V. Tom qab 500 rov ua dua, lub roj teeb muaj peev xwm yuav tsum nyob twj ywm ntau dua 60% ntawm qhov pib muaj peev xwm. Hauv lwm lo lus, lub voj voog lub neej ntawm lithium roj teeb yog 500 zaug.
Lub teb chaws tus qauv tau teev tseg tias tom qab 300 cycles, lub peev xwm yuav tsum nyob twj ywm ntawm 70% ntawm qhov pib muaj peev xwm. Cov roj teeb uas muaj peev xwm qis dua 60% ntawm qhov pib muaj peev xwm feem ntau yuav tsum tau txiav txim siab rau cov khoom pov tseg.
6.DOD: Qhov tob ntawm Discharger
Txhais raws li qhov feem pua ntawm lub peev xwm tawm ntawm lub roj teeb raws li feem pua ntawm cov peev txheej ntsuas. Qhov tob ntawm qhov tso tawm ntawm lithium roj teeb feem ntau, lub roj teeb lub neej luv dua.
7. Txiav-Off Voltage
Qhov kev txiav tawm hluav taws xob tau muab faib ua kev them nqi hluav taws xob thiab kev txiav tawm hluav taws xob, uas txhais tau hais tias qhov hluav taws xob uas lub roj teeb tsis tuaj yeem them lossis tawm mus ntxiv. Kev them nyiaj txiav tawm hluav taws xob ntawm lithium roj teeb feem ntau yog 4.2V thiab qhov hluav taws xob tshem tawm yog 3.0V. Sib sib zog nqus them los yog tso tawm ntawm lithium roj teeb dhau qhov kev txiav tawm voltage yog nruj me ntsis txwv.
8. Tus kheej tso tawm
Hais txog tus nqi poob ntawm lub peev xwm ntawm lub roj teeb thaum lub sij hawm cia, qhia raws li qhov feem pua ntawm cov ntsiab lus hauv ib chav tsev ntawm lub sijhawm. Tus kheej tawm tus nqi ntawm ib lub roj teeb lithium yog 2% mus rau 9% / hli.
9.SOC (State of Charge)
Hais txog qhov feem pua ntawm cov roj teeb uas tshuav rau tag nrho cov nqi uas tuaj yeem tso tawm, 0 txog 100%. Reflects tus nqi seem ntawm lub roj teeb.
10. Muaj peev xwm
Hais txog tus nqi zog uas tuaj yeem tau txais los ntawm lub roj teeb lithium nyob rau hauv qee yam kev tso tawm.
Cov mis rau hluav taws xob yog Q = I * t hauv coulombs thiab chav tsev ntawm lub peev xwm ntawm lub roj teeb tau teev tseg raws li Ah (ampere teev) lossis mAh (milliampere teev). Nws txhais tau tias 1AH roj teeb tuaj yeem tso tawm rau 1 teev nrog tam sim no ntawm 1A thaum them tag nrho.
Post lub sij hawm: Aug-03-2022