Muaj peb hom tseem ceeb ntawmlithium-ion roj teeb(li-ion): cylindrical cells, prismatic cells, thiab hnab cell.Hauv kev lag luam EV, qhov kev loj hlob zoo tshaj plaws nyob ib puag ncig cylindrical thiab prismatic hlwb.Thaum lub cylindrical roj teeb hom tau nrov tshaj plaws nyob rau hauv xyoo tas los no, ob peb yam qhia tias prismatic hlwb yuav siv sij hawm.

Dab tsi yogPrismatic Cells

Aprismatic cellyog ib lub cell uas nws chemistry yog nyob rau hauv ib tug nruj casing.Nws cov duab plaub tso cai rau kev sib koom ua ke ntau chav nyob hauv lub roj teeb module.Muaj ob hom prismatic hlwb: cov nplooj ntawv electrode nyob rau hauv lub casing (anode, separator, cathode) yog stacked los yog dov thiab flattened.

Rau tib lub ntim, stacked prismatic hlwb tuaj yeem tso tawm ntau lub zog ib zaug, muab kev ua haujlwm zoo dua, thaum lub hlwb prismatic flattened muaj ntau lub zog, muab ntau zog.

Prismatic hlwb feem ntau yog siv nyob rau hauv lub zog cia systems thiab hluav taws xob tsheb.Lawv qhov loj dua ua rau lawv cov neeg sib tw tsis zoo rau cov khoom siv me me xws li e-bikes thiab xov tooj ntawm tes.Yog li ntawd, lawv zoo dua rau kev siv zog siv zog.

Dab tsi yog Cylindrical Cells

Acylindrical cellyog ib lub xovtooj kaw rau hauv lub tog raj kheej nruj.Cylindrical hlwb yog me me thiab puag ncig, ua rau nws muaj peev xwm muab tso rau hauv cov khoom siv ntawm txhua qhov ntau thiab tsawg.Tsis zoo li lwm hom roj teeb, lawv cov duab tiv thaiv o, ib qho tshwm sim tsis zoo hauv cov roj teeb uas muaj cov pa roj ntau hauv cov casing.

Cylindrical hlwb tau siv thawj zaug hauv lub laptops, uas muaj nyob nruab nrab ntawm peb thiab cuaj lub hlwb.Tom qab ntawd lawv tau txais koob meej thaum Tesla siv lawv hauv nws thawj lub tsheb hluav taws xob (Roadster thiab Model S), uas muaj nyob nruab nrab ntawm 6,000 thiab 9,000 hlwb.

Cylindrical hlwb kuj tau siv hauv e-bikes, cov cuab yeej kho mob, thiab satellites.Lawv kuj tseem ceeb hauv kev tshawb nrhiav qhov chaw vim lawv cov duab;Lwm hom cell yuav deformed los ntawm atmospheric siab.Qhov kawg Rover xa mus rau Mars, piv txwv li, ua haujlwm siv cov hlwb cylindrical.Lub Formula E kev ua tau zoo hluav taws xob sib tw tsheb siv tib lub hlwb raws li rover hauv lawv lub roj teeb.

Lub ntsiab sib txawv ntawm Prismatic thiab Cylindrical Cells

Zoo li tsis yog tib yam uas txawv prismatic thiab cylindrical hlwb.Lwm qhov sib txawv tseem ceeb suav nrog lawv qhov loj me, tus naj npawb ntawm cov hluav taws xob sib txuas, thiab lawv cov hluav taws xob tso tawm.

Loj

Cov hlwb prismatic muaj ntau dua li cov hlwb cylindrical thiab yog li muaj ntau lub zog ntawm ib lub xov tooj.Txhawm rau muab lub tswv yim ntxhib ntawm qhov sib txawv, ib leeg prismatic cell muaj peev xwm muaj tib lub zog li 20 txog 100 cylindrical hlwb.Qhov me me ntawm cov cylindrical hlwb txhais tau tias lawv tuaj yeem siv rau cov ntawv thov uas xav tau lub zog tsawg dua.Yog li ntawd, lawv yog siv rau ntau yam kev siv.

Kev sib txuas

Vim hais tias cov hlwb prismatic loj dua li cov cylindrical hlwb, tsawg lub hlwb yuav tsum tau ua kom tiav tib lub zog.Qhov no txhais tau tias rau tib lub ntim, cov roj teeb uas siv prismatic hlwb muaj tsawg dua cov hluav taws xob sib txuas uas yuav tsum tau welded.Qhov no yog qhov zoo tshaj plaws rau cov hlwb prismatic vim tias muaj tsawg lub sijhawm rau kev tsim khoom tsis raug.

Hwj chim

Cylindrical cells tuaj yeem khaws lub zog tsawg dua li cov hlwb prismatic, tab sis lawv muaj zog ntau dua.Qhov no txhais tau hais tias cov hlwb cylindrical tuaj yeem tso lawv lub zog sai dua li cov hlwb prismatic.Yog vim li cas yog tias lawv muaj kev sib txuas ntau dua ib amp-teev (Ah).Raws li qhov tshwm sim, cylindrical hlwb yog qhov zoo tagnrho rau kev ua haujlwm siab thaum lub hlwb prismatic yog qhov zoo tagnrho rau kev ua kom lub zog ua haujlwm zoo.

Piv txwv ntawm kev siv roj teeb ua haujlwm siab suav nrog Formula E cov tsheb sib tw thiab Ingenuity nyoob hoom qav taub ntawm Mars.Ob leeg xav tau kev ua yeeb yam loj hauv qhov chaw huab cua.

Yog vim li cas prismatic Cells tej zaum yuav noj

Kev lag luam EV hloov zuj zus sai sai, thiab nws tsis paub meej tias cov hlwb prismatic lossis cylindrical hlwb yuav yeej.Tam sim no, cylindrical hlwb tau nthuav dav hauv kev lag luam EV, tab sis muaj cov laj thawj xav tias prismatic hlwb yuav tau txais txiaj ntsig.

Ua ntej, prismatic hlwb muab lub sijhawm los tsav cov nqi los ntawm kev txo qis ntawm cov txheej txheem tsim khoom.Lawv cov qauv ua rau nws muaj peev xwm tsim cov hlwb loj dua, uas txo cov kev sib txuas hluav taws xob uas yuav tsum tau ntxuav thiab welded.

Prismatic roj teeb kuj yog hom zoo tagnrho rau lithium-iron phosphate (LFP) chemistry, ib qho kev sib xyaw ntawm cov khoom uas pheej yig dua thiab siv tau ntau dua.Tsis zoo li lwm cov chemistry, LFP roj teeb siv cov peev txheej uas nyob txhua qhov chaw hauv ntiaj teb.Lawv tsis xav tau cov ntaub ntawv tsis tshua muaj thiab kim xws li npib tsib xee thiab cobalt uas tsav cov nqi ntawm lwm hom cell nce mus.

Muaj cov cim muaj zog uas LFP prismatic hlwb tau tshwm sim.Nyob rau hauv Asia, EV manufacturers twb siv LiFePO4 roj teeb, ib hom LFP roj teeb nyob rau hauv lub prismatic hom.Tesla kuj tau hais tias nws tau pib siv cov roj teeb prismatic tsim nyob rau hauv Suav teb rau cov qauv ntau yam ntawm nws cov tsheb.

LFP chemistry muaj qhov tsis zoo, txawm li cas los xij.Rau ib qho, nws muaj lub zog tsawg dua li lwm cov chemistry tam sim no siv thiab, xws li, tsis tuaj yeem siv rau cov tsheb ua tau zoo xws li Formula 1 hluav taws xob tsheb.Tsis tas li ntawd, roj teeb tswj systems (BMS) muaj lub sij hawm nyuaj rau kwv yees lub roj teeb theem nqi.

Koj tuaj yeem saib daim vis dis aus no kom paub ntau ntxiv txog qhovLFPchemistry thiab vim li cas nws thiaj li muaj koob meej.