Mabatire a lithiamu asanduka gawo lofunikira kwambiri pazachilengedwe zatsopano, amathandizira chilichonse kuyambira pamagalimoto amagetsi ndi malo osungiramo mphamvu mpaka pamagetsi osunthika. Komabe, vuto lomwe ogwiritsa ntchito padziko lonse lapansi amakumana nalo ndi kukhudzidwa kwakukulu kwa kutentha kwa batire - chilimwe nthawi zambiri imabweretsa zovuta monga kutupa kwa batri ndi kutayikira, pomwe nyengo yozizira imabweretsa kuchepa kwakukulu komanso kusakwanira kwacharge. Izi zimachokera ku kutentha kwachibadwa kwa mabatire a lithiamu, okhala ndi mabatire a lithiamu iron phosphate, imodzi mwa mitundu yogwiritsidwa ntchito kwambiri, yomwe imagwira ntchito bwino pakati pa 0 ° C ndi 40 ° C. Mkati mwa izi, machitidwe amkati amkati ndi kusuntha kwa ion kumagwira ntchito bwino kwambiri, kuwonetsetsa kuti mphamvu zambiri zimatulutsa.
Kutentha kunja kwa zenera lotetezeka ili kumabweretsa chiwopsezo chachikulu ku mabatire a lithiamu. M'malo otentha kwambiri, kuphulika kwa electrolyte ndi kuwonongeka kumathamanga, kutsika kwa ion conductivity komanso kutulutsa mpweya womwe umayambitsa kutupa kapena kuphulika kwa batri. Kuphatikiza apo, kukhazikika kwazinthu zama elekitirodi kumasokonekera, zomwe zimapangitsa kutaya mphamvu kosasinthika. Zowonjezereka kwambiri, kutentha kwakukulu kungayambitse kuthawa kwa kutentha, kugwirizana kwa unyolo komwe kungayambitse zochitika za chitetezo, zomwe ndi chifukwa chachikulu cha kuwonongeka kwa zipangizo zatsopano zamagetsi. Kutentha kocheperako kumakhala kovutiranso: kuchuluka kwa ma electrolyte viscosity kumachepetsa kusamuka kwa lithiamu ion, kukulitsa kukana kwamkati ndikuchepetsa kutulutsa kwachangu. Kulipiritsa mokakamizidwa m'malo ozizira kungayambitse ma ion a lithiamu kuti adutse pamtunda woyipa wa elekitirodi, kupanga ma lithiamu dendrites omwe amaboola cholekanitsa ndi kuyambitsa mabwalo apakati amkati, kuyika zoopsa zachitetezo.
Pofuna kuchepetsa kuopsa kwa kutentha kumeneku, Lithium Battery Protection Board, yomwe imadziwika kuti BMS (Battery Management System), ndiyofunikira. Zogulitsa zamtundu wapamwamba kwambiri za BMS zili ndi masensa apamwamba kwambiri a NTC omwe amawunika kutentha kwa batire mosalekeza. Pamene kutentha kumadutsa malire otetezeka, dongosolo limayambitsa alamu; pakakhala ma spikes othamanga kwambiri, nthawi yomweyo imayambitsa njira zodzitetezera kuti zidutse dera, kuteteza kuwonongeka kwina. BMS yapamwamba yokhala ndi malingaliro owongolera kutentha pang'ono imathanso kupangitsa kuti mabatire azikhala abwino kwambiri m'malo ozizira, kuthana bwino ndi zovuta monga kuchepetsedwa kwamitundu ndi zovuta zochapira, kuwonetsetsa kuti magwiridwe antchito akuyenda bwino pamatenthedwe osiyanasiyana.
Monga gawo lalikulu la chitetezo cha batri la lithiamu, BMS yogwira ntchito kwambiri sikuti imateteza chitetezo chogwira ntchito komanso imawonjezera moyo wa batri, kupereka chithandizo chofunika kwambiri pa ntchito yodalirika ya zida zatsopano zamagetsi.
Nthawi yotumiza: Oct-23-2025
