Lithium {{0} ion Iс cell
Lithium {{0} ion ion module thiab pawg
Txog lithium {{0} ion roj teeb
Kev tsav tsheb ua tiav ntawm lithium {{0} ion roj teeb hauv 1990s tsis tiav los ntawm ib kauj ruam lossis ib lub tuam txhab; Nws yog qhov tshwm sim ntawm kev tshawb fawb thiab kev koom tes ntawm ntau cov neeg ntse thiab engineers. Txij thaum ntawd los, kev mob siab ua kom tau ua kom tau txais kev ua tau zoo ntxiv rau cov lithium {} ion roj teeb, ua rau muaj kev kawm tseem ceeb. To taub txoj kev tsim muaj lithium {{5 5} ion roj teeb pab peb nkag siab cov kev sib txuas nrog cov thev naus laus zis uas tau hais tseg lub zog niaj hnub cia cua.
Txo tsev cog khoom roj emissions thiab mitigating qhov cuam tshuam ntawm kev sov siab thoob ntiaj teb yog qhov tseem ceeb hauv ntiaj teb cov hom phiaj. Yog li no, txhim kho ib puag ncig tus phooj ywg, muaj zog, ntsuab zog thev naus laus zis los hloov cov roj pob zeb- powered technologies yog qhov tseem ceeb. Nyob rau hauv xyoo tsis ntev los no, kev txhim kho thiab siv lub zog txuas ntxiv tau nce zuj zus, hloov cov roj pob txha pob zeb}} Raws li cov tshuab kis las.
Them thiab tawm ntawm cov lithium {{0} ion roj teeb
Kev them nyiaj thiab rho tawm ntawm lithium {{{} ion roj teeb yog cov txheej txheem thim rov qab. Lub hauv paus ntsiab lus yog tias Lithium ions (LI +) txav ntawm qhov zoo thiab tsis zoo cov hluav taws xob hla tus separator. Thaum lub sijhawm no cov txheej txheem no, hluav taws xob ntws los ntawm Circuit Sab Nrauv kom rov ua tiav cov lithium - tsis muaj kev sib npaug. Qhov tshuaj tiv thaiv no tsis zoo tagnrho, thiab lub zog yog ploj thaum lub sijhawm them thiab rho tawm cov txheej txheem lithium {6} ion roj teeb.
Tus nqi them / tso tawm (c - tus nqi) yog hais txog tus nqi ntawm cov khoom siv lithiation lossis decithau ntawm cov khoom hluav taws xob. C Sawv cev lub roj teeb muaj zog, feem ntau ntsuas hauv ampere -}}} Cov khoom siv tau tso tawm. Ampere yog chav ntawm hluav taws xob tam sim no, sawv cev ntawm tus naj npawb ntawm ceulombs ib ntu sijhawm. Yog li ntawd, cov neeg tam sim no sib npaug los ntawm lub sijhawm yog tus nqi tiag tiag ntawm ceulombs khaws cia hauv lub roj teeb.
Cov mis nyob tom qab
t=lub sijhawm
Cr=c tus nqi
t=1 / cr (mus saib hauv teev)
t=60 nas / cr (mus saib hauv feeb)
0.5C tus nqi piv txwv
2300mAh roj teeb
2300mah / 1000=2.3 a
0.5C x 2.3a=1.15 muaj
1 / 0.5c=2} sijhawm
60/25C=120 feeb
2c tus nqi piv txwv
2300mAh roj teeb
2300mah / 1000=2.3 a
2c x 2.3a=4.6 muaj
1/2c=0.5} sijhawm
60 / 2c=30} feeb
30c tus nqi piv txwv
2300mAh roj teeb
2300mah / 1000=2.3 a
30c x 2.3a=69 muaj
60 / 30c=2 feeb
Cov lus hauv qab no qhia txog lub sijhawm tso tawm rau cov sib txawv c - tus nqi.
| C - tus nqi | Sij hawm |
| 0.05c lossis C / 20 | 20 h |
| 0.1c lossis c / 10 | 10 h |
| 0.2c lossis c / 5 | 5 h |
| 1C | 1 h |
| 2C | 30 Min |
| 3C | 20 feeb |
| 4C | 15 feeb |
| 5C | 12 feeb |
| 6C | 10 feeb |
| 10C | 6 feeb |
| 15C | 6 feeb |
| 20C | 3 feeb |
Lub sijhawm 0.5c, 1c, thiab 2C tau tawm tsam cov roj teeb uas tsis muaj roj teeb, 0.5C yog ib qho tso tawm tag nrho hauv ib teev, 0.5C yog ib teev tso tawm, thiab 2C yog ib qho 30 {{9 {} feeb tawm. Rau feem ntau hnub ci zog cia tes hauj lwm, tus nqi C rau lithium {{14} ion roj teeb yog 0.25c, thiab 1c. Lithium-ion roj teeb siv rau UPS kuj siv 4C.
Yuav ua li cas laij Max. Tawm tam sim no ntawm lub lithium {{1} ion roj teeb
Txhawm rau kev suav, koj yuav tsum paub nws lub peev xwm (c), ntsuas voltage (v), thiab C ntaus (c). Cov mis yog raws li hauv qab no:
Ntau tshaj plaws tawm tam sim no=muaj peev xwm (c) x ntsuas (c) / ntsuas voltage (v)
Piv txwv li, Piv txwv tias koj muaj 200ah lithium {1} ion roj teeb nrog 2C ntaus nqi thiab cov ntsuas hluav taws xob ntawm 51.2V. Qhov ntau tshaj tawm tam sim no yuav:
Qhov ntau kawg tso tawm tam sim no=200 ah x 2 / 51.2v= 78.125 a
Qhov no txhais tau tias lub roj teeb tuaj yeem xa tau ntau qhov kawg ntawm 78.125a yam tsis muaj kev ua kom nws ua rau nws lub neej dhau los.
Qhov cuam tshuam cuam tshuam rau c - tus nqi
1. Kub
Qhov kub thiab qhov kub cuam tshuam rau kev ua tau roj teeb thiab nws tus nqi them mus thiab tso tawm. Thaum ntau dua qhov kub thiab txias, roj teeb tuaj yeem tiv thaiv cov kev tshem tawm sai dua, tab sis kuj tseem pheej hmoo ntawm kev ua kom dhau los thiab kev puas tsuaj.
2. Roj teeb txo thiab mob
Raws li lub roj teeb, lawv lub peev xwm thiab muaj peev xwm tiv thaiv siab siab {} txoj kev tawm mus tsawg kawg feem ntau tsawg. Qhov no yog vim tias sab hauv cov khoom siv hnav tawm sijhawm dhau sijhawm, nce sab hauv sab hauv. Cov roj teeb qub tsis muaj zog ntawm kev tswj hwm cov kev tswj hwm kub thiab kev tawm mus ncig ua si thiab yuav tawm tsam kom txhawb nqa roj teeb qub dua.
3. Cov nplaim loj thiab tsim qauv
Qhov loj dua, lossis cov uas muaj ntau thaj chaw thaj chaw rau cov ntws tam sim no, feem ntau tuaj yeem tuav siab c- tus nqi. Hauv kev sib piv, roj teeb me me tuaj yeem overheat los yog degrade sai dua yog them lossis tshem tawm sai sai.
