Mbiri

Kufalikira kwa ma module kumakumana ndi magawo otsatirawa: Kuchulukana kwa kutentha pambuyo pogwiritsa ntchito ma cell matenthedwe, ma cell thermal runaway ndiyeno module thermal runaway.Kuthamanga kwa kutentha kuchokera ku selo limodzi sikukhudza;komabe, pamene kutentha kumafalikira ku maselo ena, kufalitsa kumayambitsa mphamvu ya domino, yomwe imatsogolera kuthawa kwa kutentha kwa gawo lonse, kutulutsa mphamvu zazikulu.Chithunzi 1chiwonetseros zotsatira za kuyesa kwa kutentha kwa kutentha.Module ili pamoto chifukwa cha kufalitsa kosatsutsika.

Kutentha kwa mkati mwa selo kumakhala kosiyana malinga ndi njira zosiyanasiyana.The coefficient of conductivity kutentha adzakhala apamwamba mu malangizokufananandi mphuno ya cell;pomwe mayendedwe omwe ali ofukula ku mpukutuwo amakhala ndi madulidwe otsika.Chifukwa chake kufalikira kwamafuta kuchokera mbali kupita mbali pakati pa ma cell kumakhala mwachangu kuposa momwe zimakhalira kudzera pama tabu kupita ku ma cell.Chifukwa chake kufalitsa kumatha kuwonedwa ngati kufalikira kwa gawo limodzi.Monga ma module a batri amapangidwira kuti azikhala ndi mphamvu zambiri, danga lapakati pa maselo likucheperachepera, zomwe zidzakulitsa kufalikira kwa kutentha.Chifukwa chake, kupondereza kapena kuletsa kufalikira kwa kutentha mu gawoli kudzatengedwa ngatizotsatiranjira yochepetsera zoopsa. 

Njira yopondereza kuthawa kwamafuta mu module

Titha kuletsa kuthawa kwamafuta mwachangu kapena mosasamala.

Kupondereza kwachangu

Kuponderezedwa kwamphamvu kwamafuta kumatengera kasamalidwe ka matenthedwe, monga:

1) Khazikitsani mapaipi ozizira pansi kapena mbali zamkati za gawo, ndikudzaza ndi madzi ozizira.Kuthamanga kwa madzi ozizira kumatha kuchepetsa kufalitsa.

2) Khazikitsani mapaipi ozizimitsa moto pamwamba pa gawo.Pamene kutentha kwatha, mpweya wotentha kwambiri wotulutsidwa kuchokera ku batri umayambitsa mapaipi kuti azipopera zozimitsa kuti athetse kufalitsa.

Komabe, kasamalidwe ka matenthedwe amafunikira zida zowonjezera, zomwe zimapangitsa kuti pakhale mtengo wokwera komanso kutsika kwamphamvu kwamphamvu.Palinso kuthekera kuti kasamalidwe kachitidwe kangathe kugwira ntchito.

Kupondereza kwapang'onopang'ono

Kupondereza kwapang'onopang'ono kumagwira ntchito poletsa kufalikira kudzera muzinthu za adiabatic pakati pa ma cell othawa kwawo ndi ma cell abwinobwino.

Kawirikawiri, zinthuzo ziyenera kukhala mu:

1. Low matenthedwe madutsidwe.Izi ndi kuchepetsa liwiro la kutentha kufalikira.
2. Kukana kutentha kwakukulu.Zinthuzo siziyenera kuthetsa kutentha kwakukulu ndikutaya mphamvu ya kukana kutentha.
3. Ochepa kachulukidwe.Uku ndikuchepetsa mphamvu ya mphamvu ya voliyumu ndi kuchuluka kwa mphamvu zambiri.

Zinthu zabwino zimatha kuletsa kutentha kufalikira komanso kuyamwa kutentha.

Kusanthula zinthu

• Airgel

Airgel imatchedwa "chopepuka kwambiri chotchinjiriza kutentha".Imachitidwa bwino pakutchinjiriza kutentha komanso kulemera.Amagwiritsidwa ntchito kwambiri mu gawo la batri poteteza kufalikira kwamafuta.Pali mitundu yambiri ya aerogel, monga silicon dioxide aerogel, aerogel, glass fiber airgel ndi pre-oxidized fiber.Kutentha kwa Airgel kusanjikiza kwazinthu zosiyanasiyana kumakhala ndi zotsatira zosiyanasiyana pakuthawa kwamafuta.Izi ndichifukwa choti mitundu yosiyanasiyana ya matenthedwe amtundu wamafuta, yomwe imagwirizana kwambiri ndi kapangidwe kake kakang'ono.Chithunzi 2 chikuwonetsa mawonekedwe a SEM azinthu zosiyanasiyana asanawotchedwe komanso atatha.

Kafukufuku akuwonetsa kuti ngakhale kutchinjiriza kwa fiber kumakhala kotsika mtengo, ntchito yoletsa kufalikira kwa kutentha ndiyoyipa kuposa zida za airgel.Mwa mitundu yosiyanasiyana ya zida za airgel, pre-oxidized fiber airgel imachita bwino kwambiri, chifukwa imasunga kapangidwe kake ikayaka.Ceramic fiber airgel imagwiranso ntchito bwino pakuteteza kutentha.

• Zinthu zosinthira gawo

Kusintha kwa gawo kumagwiritsidwanso ntchito kwambiri kupondereza kufalikira kwa kutentha chifukwa chakusunga kwake kutentha.Sera ndi PCM wamba, ndi kutentha kwa gawo lokhazikika.Panthawi yotenthaThawani, kutentha kumatulutsidwa kwambiri.Chifukwa chake PCM iyenera kukhala yayikuluntchitowa kuyamwa kutentha.Komabe, sera imakhala ndi kutsika kwa kutentha komwe kumakhudza kuyamwa kutentha.Pofuna kulimbikitsa ntchito yake, ofufuza amayesa kuphatikiza sera ndi zipangizo zina, monga kuwonjezera tinthu tachitsulo, gwiritsani ntchito thovu lachitsulo kuti muyike PCM, onjezerani.graphite, mpweya wa carbon nano chubu kapena graphite yowonjezera, ndi zina zotero.

Hydrophilic polima ndi mtundu wa PCM woletsa njira yothamanga yotentha.Zida zodziwika bwino za hydrophilic polima ndi: colloidal silicon dioxide, saturated calcium chloride solution,Tetraethyl phosphate, tetraphenyl hydrogen phosphate,sOdium polyacrylate, ndi zina.

•  Zinthu zosakanizidwa

Kuthamanga kwa kutentha sikungathe kuletsedwa ngati tingodalira aerogel.Kuti bwinobwinokutsekerezakutentha, tiyenera kuphatikiza airgel ndi PCM.

Kupatula zinthu zosakanizidwa, titha kupanganso zinthu zosanjikiza zambiri ndi ma coefficients osiyanasiyana opangira matenthedwe mbali zosiyanasiyana.Titha kugwiritsa ntchito zida zopangira matenthedwe apamwamba kuti titenthetse mu gawo, ndikuyika zinthu zotchinjiriza kutentha pakati pa maselo kuti tiletse kufalikira kwa kutentha.

Mapeto

Kuwongolera kufalikira kwamafuta othawa kwawo ndi nkhani yovuta.Opanga ena adapanga njira zothetsera kutentha kufalikira, koma akufufuzabe china chatsopano, kuti achepetse mtengo komanso chikoka pakukula kwa mphamvu.Tikuyang'anabe pa kafukufuku waposachedwapa.Palibe“zakuthupi zapamwamba” zomwe zimatha kuletsa kutha kwa matenthedwe kwathunthu.Pamafunika zoyeserera zambiri kuti mupeze mayankho abwino kwambiri.