Muaj peb hom tseem ceeb ntawmcov roj teeb lithium-ion(li-ion): cov hlwb cylindrical, cov hlwb prismatic, thiab cov hlwb hnab. Hauv kev lag luam EV, kev txhim kho zoo tshaj plaws tig mus rau cov hlwb cylindrical thiab prismatic. Txawm hais tias hom roj teeb cylindrical tau nrov tshaj plaws hauv xyoo tas los no, ntau yam qhia tias cov hlwb prismatic yuav siv tau.

Yog Dab TsiCov Cell Prismatic

Iblub cell prismaticyog ib lub cell uas nws cov tshuaj lom neeg raug kaw hauv lub plhaub tawv. Nws cov duab plaub fab tso cai rau kev sib sau ua ke ntau lub units hauv lub roj teeb module. Muaj ob hom prismatic cells: cov ntawv electrode hauv lub plhaub (anode, separator, cathode) yog sib sau ua ke lossis dov thiab flattened.

Rau tib lub ntim, cov hlwb prismatic uas sib sau ua ke tuaj yeem tso tawm ntau lub zog ib zaug, muab kev ua tau zoo dua, thaum cov hlwb prismatic uas tiaj tiaj muaj ntau lub zog, muab kev ruaj khov dua.

Cov hlwb prismatic feem ntau yog siv rau hauv cov txheej txheem khaws cia lub zog thiab cov tsheb fais fab. Lawv qhov loj dua ua rau lawv tsis zoo rau cov khoom siv me me xws li e-tsheb kauj vab thiab xov tooj ntawm tes. Yog li ntawd, lawv zoo dua rau cov ntawv thov siv zog ntau.

Cov Cell Cylindrical Yog Dab Tsi?

Iblub cell cylindricalyog ib lub cell uas kaw rau hauv ib lub thawv kheej kheej. Cov cell cylindrical yog me me thiab puag ncig, ua rau nws muaj peev xwm muab lawv tso rau hauv txhua qhov loj me. Tsis zoo li lwm hom roj teeb, lawv cov duab tiv thaiv kev o, uas yog qhov tshwm sim tsis xav tau hauv cov roj teeb uas cov pa roj sib sau ua ke hauv lub thawv.

Cov hlwb cylindrical tau siv thawj zaug hauv cov laptops, uas muaj peb txog cuaj lub hlwb. Tom qab ntawd lawv tau nrov thaum Tesla siv lawv hauv nws thawj lub tsheb fais fab (Roadster thiab Model S), uas muaj ntawm 6,000 thiab 9,000 lub hlwb.

Cov hlwb cylindrical kuj siv rau hauv e-tsheb kauj vab, cov khoom siv kho mob, thiab cov satellites. Lawv kuj tseem ceeb hauv kev tshawb nrhiav qhov chaw vim lawv cov duab; lwm cov qauv hlwb yuav raug deformed los ntawm lub siab ntawm huab cua. Piv txwv li, lub Rover kawg xa mus rau Mars ua haujlwm siv cov hlwb cylindrical. Lub tsheb sib tw fais fab Formula E ua haujlwm siab siv cov hlwb zoo ib yam li lub rover hauv lawv lub roj teeb.

Qhov Txawv Tseem Ceeb Ntawm Cov Cell Prismatic Thiab Cylindrical

Cov duab tsis yog tib yam uas ua rau cov hlwb prismatic thiab cylindrical txawv. Lwm qhov sib txawv tseem ceeb suav nrog lawv qhov loj me, tus lej ntawm cov kev sib txuas hluav taws xob, thiab lawv cov zis hluav taws xob.

Loj

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

Kev Sib Txuas

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

Lub zog

Cov hlwb cylindrical yuav khaws cia tsawg dua li cov hlwb prismatic, tab sis lawv muaj zog ntau dua. Qhov no txhais tau tias cov hlwb cylindrical tuaj yeem tso lawv lub zog sai dua li cov hlwb prismatic. Qhov laj thawj yog tias lawv muaj ntau qhov kev sib txuas ib amp-teev (Ah). Yog li ntawd, cov hlwb cylindrical zoo tagnrho rau cov ntawv thov kev ua haujlwm siab thaum cov hlwb prismatic zoo tagnrho rau kev ua kom zoo dua ntawm kev siv hluav taws xob.

Piv txwv ntawm cov roj teeb ua haujlwm tau zoo suav nrog Formula E tsheb sib tw thiab Ingenuity helicopter ntawm Mars. Ob qho tib si xav tau kev ua haujlwm zoo heev hauv qhov chaw ib puag ncig hnyav.

Vim li cas Prismatic Cells Tej zaum yuav siv zog

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

Ua ntej, cov hlwb prismatic muab lub sijhawm los txo cov nqi los ntawm kev txo cov kauj ruam tsim khoom. Lawv hom ntawv 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 vuam.

Cov roj teeb Prismatic kuj yog hom ntawv zoo tagnrho rau cov tshuaj lithium-iron phosphate (LFP), uas yog cov khoom siv pheej yig dua thiab yooj yim dua. Tsis zoo li lwm cov tshuaj lom neeg, cov roj teeb LFP siv cov peev txheej uas nyob txhua qhov chaw hauv ntiaj teb. Lawv tsis xav tau cov khoom siv tsawg thiab kim xws li nickel thiab cobalt uas ua rau tus nqi ntawm lwm hom cell nce siab.

Muaj cov cim qhia tias LFP prismatic cells tab tom tshwm sim. Hauv cov teb chaws Es Xias, cov chaw tsim khoom EV twb siv cov roj teeb LiFePO4, ib hom roj teeb LFP hauv hom prismatic. Tesla kuj tau hais tias nws tau pib siv cov roj teeb prismatic tsim nyob rau hauv Suav teb rau cov qauv txheem ntawm nws lub tsheb.

Txawm li cas los xij, cov tshuaj lom neeg LFP muaj qhov tsis zoo tseem ceeb. Rau ib qho, nws muaj zog tsawg dua li lwm cov tshuaj lom neeg uas siv tam sim no thiab, yog li ntawd, tsis tuaj yeem siv rau cov tsheb ua haujlwm siab xws li Formula 1 lub tsheb fais fab. Tsis tas li ntawd, cov txheej txheem tswj roj teeb (BMS) muaj lub sijhawm nyuaj rau kwv yees qib roj teeb.

Koj tuaj yeem saib daim video no kom paub ntau ntxiv txog qhov noLFPchemistry thiab vim li cas nws thiaj li nrov zuj zus.