Cov Khoom Siv Tiv Thaiv Hluav Taws Xob Hauv Cov Tsheb Hluav Taws Xob: Vim Li Cas Nws Thiaj Tseem Ceeb

 

Kev siv hluav taws xob hauv kev lag luam tsheb yog ib qho kev hloov pauv loj heev rau kev ruaj khov, txo cov pa phem, thiab kev ywj pheej ntawm lub zog. Txawm li cas los xij, qhov kev hloov pauv thev naus laus zis no coj nrog nws cov teeb meem kev nyab xeeb tshwj xeeb, tsis muaj qhov tseem ceeb dua li kev tswj hwm kev pheej hmoo hluav taws. Txawm hais tias kev suav lej, cov tsheb hluav taws xob (EVs) tsis tshua muaj peev xwm ntes hluav taws dua li lawv cov cav sib xyaw sab hauv (ICE), qhov xwm txheej ntawm hluav taws EV yog qhov sib txawv heev thiab nthuav tawm cov teeb meem tshiab rau kev tiv thaiv, kev tswj hwm, thiab kev tswj hwm. Hauv plawv ntawm kev daws qhov teeb meem no yog tus neeg saib xyuas ntsiag to tab sis tseem ceeb: cov ntaub ntawv tiv thaiv hluav taws kub siab heev.

Tsab xov xwm no tshawb nrhiav txog cov kev cai lij choj uas cuam tshuam txog kev sib koom ua ke hluav taws kub retardant khoom mus rau hauv EVs, tshawb nrhiav cov kev pheej hmoo tshwj xeeb uas tshwm sim los ntawm cov roj teeb lithium-ion, cov ntaub ntawv tshawb fawb txog kev tiv thaiv hluav taws, cov chaw siv tseem ceeb, thiab cov qauv hloov pauv uas tsim cov teb tseem ceeb no.

 

Kev Pheej Hmoo Hluav Taws Tshwj Xeeb: Thermal Runaway

Yuav kom nkag siab tias vim li cas kev tiv thaiv hluav taws thiaj li tseem ceeb, ib tug yuav tsum xub nkag siab txog qhov xwm txheej ntawm kev khiav tawm ntawm lub zog hluav taws xob. Qhov no yog ib qho kev sib txuas lus hauv lub roj teeb lithium-ion uas nws tus kheej txhawb nqa thiab nws tus kheej ua kom nrawm dua.

1. Kev pib: Nws tuaj yeem tshwm sim los ntawm kev puas tsuaj rau lub cev (piv txwv li, lub qhov hluav taws xob los ntawm qhov xwm txheej), kev siv hluav taws xob ntau dhau (them ntau dhau, luv luv Circuit Court), lossis kev siv cua sov ntau dhau (kub sab nraud).
2. Exothermic Reactions: Qhov txhaum ua rau qhov kub thiab txias sab hauv thiab siab nce siab. Qhov no ua rau txheej solid-electrolyte interphase (SEI) tawg, ua raws li kev sib xyaw ntawm anode thiab electrolyte, thiab cathode thiab electrolyte. Txhua qhov kev sib xyaw tso tawm cua sov loj heev.
3. Hais tawm: Qhov kub ntawm ib lub cell uas tsis ua haujlwm ua rau qhov kub ntawm nws cov neeg nyob ze nce siab, ua rau lawv kuj mus rau hauv qhov kub hnyiab. Qhov no tuaj yeem ntws los ntawm ib lub module thiab tej zaum tag nrho lub roj teeb.
4. Emission: Cov txheej txheem no tso tawm cov pa roj lom thiab cov pa roj uas yooj yim hlawv (xws li hydrogen, carbon monoxide, thiab ntau yam organic solvents) thiab tso tawm cov khoom me me uas tab tom hlawv. Cov pa roj no tuaj yeem hlawv tau sai heev, ua rau muaj hluav taws kub hnyiab thiab kub hnyiab uas nyuaj tua heev.

Qhov teeb meem tsis yog tsuas yog qhov muaj zog xwb, tab sis kuj yog lub sijhawm ntev thiab rov tshwm sim dua. Hluav taws kub ntawm lub roj teeb EV tuaj yeem kub hnyiab tau ntau teev thiab tej zaum yuav rov tshwm sim dua ob peb hnub tom qab qhov xwm txheej thawj zaug vim yog lub zog seem thiab cov tshuaj lom neeg hauv cov hlwb puas tsuaj.

 

 

Lub Luag Haujlwm ntawm Cov khoom siv hluav taws kub retardantKev Tiv Thaiv Ntau Yam

Cov khoom siv tiv thaiv hluav taws (FR) tsis ua rau cov khoom "tiv taus hluav taws." Hloov chaw, lawv tau tsim los tiv thaiv kev kub hnyiab, qeeb qeeb ntawm kev sib kis ntawm cov nplaim taws, txwv tsis pub cua sov tso tawm, thiab txwv tsis pub tsim cov pa luam yeeb thiab cov pa lom. Hauv lub tsheb EV, lawv lub luag haujlwm yog ntau yam, tsim kom muaj kev tiv thaiv tob tob:

1. Kev tiv thaiv: Ncua qhov pib ntawm kev khiav tawm ntawm thermal los ntawm kev muab kev rwb thaiv tsev thermal thiab cais cov cell ntawm cov teeb meem hluav taws xob.
2. Containment: Yog tias ib lub cell ua tsis tiav, cov ntaub ntawv FR lub hom phiaj yog kom muaj qhov xwm txheej hauv chav me tshaj plaws (lub cell, ib lub module), tiv thaiv kev sib kis.
3. Kev faib tawm: Tsim cov laj kab kom qeeb qeeb qhov hluav taws thiab pa luam yeeb kis mus rau hauv chav neeg caij tsheb, muab sijhawm ntxiv rau cov neeg caij tsheb tawm mus.
4. Kev Tiv Thaiv Cov Txheej Txheem Tseem Ceeb: Tiv thaiv cov xov hluav taws xob siab, cov khoom siv hluav taws xob, thiab cov chaw tswj hwm kom ntseeg tau tias lawv ua haujlwm ntev li ntev tau thaum muaj xwm txheej, ua rau cov txheej txheem kev nyab xeeb ua haujlwm tau.

 

 

Kev Tshawb Fawb Txog Cov Khoom Siv thiab Cov Cheeb Tsam Tseem Ceeb

Cov ntaub ntawv FR hauv EVs yog kev sib xyaw ua ke ntawm cov polymers, ceramics, thiab composites. Lawv ua haujlwm los ntawm cov txheej txheem xws li char tsim (tsim ib txheej carbonaceous tiv thaiv), endothermic txias (nqus cua sov los ntawm cov tshuaj lom neeg), thiab roj dilution (tso cov pa roj inert los hloov cov pa oxygen).

1. Sab Hauv ntawm Lub Roj Teeb: Kab Tiv Thaiv Thawj Zaug

Qhov no yog thaj chaw thov tseem ceeb tshaj plaws.

• Cov Khoom Sib Cais/Teeb Meem Ntawm Cell-rau-Cell: Cov khoom siv uas muab tso rau nruab nrab ntawm cov hlwb ib leeg yog qhov tseem ceeb rau kev ncua kev nthuav dav. Cov no suav nrog:
  • Cov Ntawv Ceramic / Matts: Lub teeb yuag, rwb thaiv tshav kub zoo, thiab ruaj khov thaum kub heev (piv txwv li, silica, alumina).
  • Cov Aerogels: Cov ntaub ntawv sib dua heev nrog cov khoom rwb thaiv tshav kub zoo heev (piv txwv li, silica aerogel pam).
  • Cov ntaub ntawv Intumescent: Cov no yuav o tuaj sai heev thaum raug cua sov, ua rau cov hluav taws tuab thiab rwb thaiv tsev uas cais cov cell thiab nqus cua sov. Feem ntau lawv siv rau hauv cov ntaub qhwv lossis cov txheej txheej.
• Cov Tsev Module thiab Cov Thawv Ntim Khoom: Cov khoom siv uas tuav cov roj teeb modules feem ntau yog ua los ntawm cov khoom sib xyaw uas tsis kub hnyiab. Cov yas uas muaj iav fiber ntau (GFRP) lossis cov yas uas muaj carbon fiber ntau (CFRP) yog impregnated nrog FR resins (piv txwv li, epoxy, phenolic) lossis cov khoom ntxiv. Cov khoom sib xyaw phenolic tau txais txiaj ntsig tshwj xeeb rau lawv cov pa luam yeeb tsawg thiab muaj peev xwm ua kom muaj hluav taws xob zoo heev.
• Potting thiab Encapsulation: Qee cov qauv siv cov tshuaj cog ntoo uas ua rau kub tau tab sis tiv thaiv hluav taws xob los ua kom puv qhov khoob hauv ib lub module. Qhov no pab tswj kev kub, muab kev ruaj khov ntawm lub tshuab, thiab tuaj yeem tiv thaiv kev sib kis hluav taws los ntawm kev txwv tsis pub muaj oxygen.

2. Chav Neeg Caij Tsheb thiab Cov Cheebtsam Hluav Taws Xob Siab

• Kev rwb thaiv tsev HV Cable: Cov xov hluav taws xob siab (nqa 400V/800V) yog sheathed hauv halogen-free, flame-retardant (HFFR) polymers xws li cross-linked polyethylene (XLPE) nrog cov hlau hydroxide additives (piv txwv li, magnesium lossis aluminium hydroxide). Cov no decompose endothermically, tso cov dej vapor uas txias thiab dilutes cov roj flammable, zam cov corrosive, lom pa luam yeeb tsim los ntawm cov ntaub ntawv halogenated.
• Cov khoom sib txuas thiab cov Busbars: Cov yas rau cov khoom siv hluav taws xob yog pwm los ntawm FR engineering plastics xws li polybutylene terephthalate (PBR) lossis polyamide (PA/Nylon) uas muaj phosphorus lossis nitrogen-based FR additives.
• Lub thawv roj teeb: Lub plhaub sab nraud ntawm lub pob khoom, feem ntau yog txhuas, yuav muaj cov ntaub thaiv cua sov los tiv thaiv lub tsheb lub cev hauv qab thiab chav hauv tsheb ntawm qhov kub hnyiab heev thaum muaj hluav taws kub.
• Khoom siv sab hauv: Txawm hais tias tswj hwm rau txhua lub tsheb, cov yas sab hauv EV, cov ua npuas dej (lub rooj zaum, lub taub hau), thiab cov ntaub yuav tsum ua tau raws li cov qauv FR nruj yam tsis muaj kev cuam tshuam rau kev nplij siab, qhov hnyav, lossis kev siv rov qab.

 

 

Lub Caij Nyoog Tshiab: Kev Sib Npaug ntawm Kev Ua Tau Zoo nrog Kev Sib Pauv

Kev tsim cov ntaub ntawv FR rau EVs yog ib qho kev tawm dag zog los sib npaug cov kev xav tau sib tw:

• Qhov hnyav piv rau kev tiv thaiv: Txhua gram muaj nqis rau lub tsheb. Aerogels thiab cov txheej txheej nyias nyias muab kev ua haujlwm siab nrog qhov hnyav tsawg.
• Kev Tswj Xyuas Kub vs. Kev Tiv Thaiv Hluav Taws: Cov ntaub ntawv feem ntau yuav tsum pab kom cov cua sov tawm thaum lub sijhawm ua haujlwm (ua kom muaj cua sov siab) tab sis ua kom rwb thaiv tsev thaum muaj hluav taws kub - qhov yuav tsum tau ua ob qho nyuaj.
• Tus nqi: Cov khoom siv ua los ntawm cov av nplaum thiab cov aerogels kim heev. Kev siv dav dav yog nyob ntawm kev tsim khoom loj thiab kev txo nqi.
• Kev Ruaj Ntseg thiab Kev Lom Zem: Kev lag luam tab tom tsiv tawm ntawm cov tshuaj halogenated flame retardants vim muaj kev txhawj xeeb txog ib puag ncig thiab kev noj qab haus huv. Muaj kev thawb kom muaj cov khoom siv bio-based FR additives (piv txwv li, muab los ntawm chitosan, lignin) thiab cov qauv tsim uas pab txhawb kev siv rov qab thaum kawg ntawm lub neej.
• Kev Sib Koom Tes Hauv Qib System: Yav tom ntej yog nyob rau hauv cov ntaub ntawv siv tau ntau yam. Piv txwv li, ib qho sib xyaw ua ke uas muab kev txhawb nqa cov qauv, ua haujlwm ua lub dab dej kub thaum lub sijhawm ua haujlwm ib txwm, thiab tuaj yeem tsim cov hluav taws thaiv thaum muaj xwm txheej kub.

 

 

Kev Cai Lij Choj thiab Kev Ntsuas

Cov kev cai lij choj tab tom hloov pauv sai sai kom ua raws li thev naus laus zis. Cov qauv tseem ceeb suav nrog:

• UNECE R100 & R94/95: Cov cai lij choj European tswj hwm kev nyab xeeb ntawm EVs hauv cov xwm txheej hluav taws xob thiab kev sib tsoo, yuam kom muaj kev cais tawm ntawm lub kaw lus HV tom qab kev sib tsoo thiab kev ua kom lub roj teeb ruaj khov.
• Tuam Tshoj tus GB Cov Qauv: Tshwj xeeb tshaj yog nruj, suav nrog cov neeg tsis muaj npe nrov ntsia thawv nkag mus kuaj, uas ncaj qha sim lub cell lossis module txoj kev tiv thaiv rau cov voj voog luv luv sab hauv thiab kev nthuav dav.
• Cov Qauv SAE & ISO: Cov koom haum xws li SAE International thiab ISO tab tom tsim cov txheej txheem kuaj xyuas kom ntxaws txog kev tiv thaiv kev sib kis, kev raug hluav taws sab hauv thiab sab nraud, thiab kev piav qhia txog kev khiav tawm ntawm cov hluav taws kub.
• Cov Qauv ntawm Lub Tuam Txhab: Cov tuam txhab OEM ua lag luam xws li Tesla, GM, thiab Volkswagen feem ntau muaj cov qauv sab hauv uas tshaj qhov tsawg kawg nkaus ntawm txoj cai, ua rau cov neeg muab khoom siv khoom tsim kho tshiab ntxiv.

Kev sim yog qhov dav thiab hnyav, ua piv txwv txog cov xwm txheej kev siv tsis raug hauv lub ntiaj teb tiag tiag: kev sib tsoo, kev raus dej, kev them ntau dhau / kev tso tawm, kev cuam tshuam hluav taws sab nraud, thiab kev sim thermal propagation.

 

 

Vim Li Cas Nws Tseem Ceeb: Tshaj Li Cov Lus Qhia Txog Kev Siv Tshuab

Qhov tseem ceeb rau cov ntaub ntawv tiv taus hluav taws kub muaj zog txuas ntxiv mus dhau ntawm cov kev kuaj xyuas engineering:

1. Kev Nyab Xeeb Rau Pej Xeem thiab Kev Ntseeg Siab ntawm Cov Neeg Siv Khoom: Cov teeb meem hluav taws kub ntawm EV uas muaj npe nrov, txawm tias tsis tshua muaj los xij, tuaj yeem ua rau pej xeem tsis ntseeg siab. Cov qauv tsim uas muaj kev nyab xeeb, uas siv cov khoom siv FR siab heev, yog qhov tseem ceeb rau kev siv ntau.
2. Kev Nyab Xeeb ntawm Tus Neeg Teb Thawj Zaug: Cov ntaub ntawv no muab lub sijhawm tseem ceeb - feeb tseem ceeb ntawm kev sib tsoo thiab qhov muaj peev xwm kis mus rau qhov loj heev - tso cai rau cov neeg teb thawj zaug los soj ntsuam, tswj kev ruaj khov, thiab rho tawm cov neeg nyob hauv. Cov cim qhia meej thiab tsim qauv rau kev teb rau xwm txheej ceev feem ntau tau koom ua ke nrog FR cov tswv yim.
3. Kev tiv thaiv khoom vaj khoom tsev: Lub roj teeb yog ib qho khoom kim tshaj plaws hauv lub tsheb EV. Kev muaj qhov tsis ua haujlwm rau ib lub module me me, hloov tau, es tsis txhob rhuav tshem tag nrho lub pob (lossis lub tsheb), yog qhov tsim nyog rau kev lag luam.
4. Pab kom muaj zog ntau dua: Thaum kev lag luam thawb mus rau cov tshuaj lom neeg muaj zog ntau dua (piv txwv li, silicon-anode, solid-state), uas yuav muaj ntau yam kev pheej hmoo, lub luag haujlwm ntawm kev tiv thaiv hluav taws tsis siv neeg yuav tseem ceeb dua. Nws yog qhov tseem ceeb rau kev nyab xeeb rau tiam tom ntej ntawm cov thev naus laus zis roj teeb.

 

xaus

Cov khoom siv hluav taws kub retardant tsis yog ib qho khoom siv hauv kev tsim tsheb fais fab; lawv yog lub hauv paus tseem ceeb ntawm kev nyab xeeb. Lawv sawv cev rau qhov tseem ceeb, feem ntau tsis pom, kev sib txuas ntawm lub zog loj heev uas muaj nyob hauv lub roj teeb lithium-ion thiab cov neeg nyob hauv lub tsheb thiab ib puag ncig. Kev txhim kho tas mus li hauv daim teb no - sib dua, ntse dua, ruaj khov dua, thiab sib koom ua ke dua - yog kev teb ncaj qha rau qhov kev sib tw tshwj xeeb thiab hnyav ntawm kev khiav tawm thermal.

Thaum lub tsheb EV hloov zuj zus sai sai, kev tsim kho tshiab tas mus li hauv kev tshawb fawb txog cov khoom siv hluav taws kub yuav ua lub luag haujlwm tseem ceeb hauv kev ua kom ntseeg tau tias kev hloov mus rau kev siv hluav taws xob tsis yog tsuas yog huv thiab ua haujlwm tau zoo xwb tab sis kuj ua pov thawj thiab muaj kev nyab xeeb. Lub hom phiaj yog meej: ua kom hluav taws kub EV loj heev tsis tshua muaj, thiab thaum muaj kev puas tsuaj tshwm sim, kom ntseeg tau tias nws yog qhov xwm txheej tswj tau, tswj tau, thiab muaj sia nyob. Hauv lub hom phiaj no, cov khoom siv hluav taws kub yog cov phooj ywg tseem ceeb.

Yog xav paub ntxiv txog cov khoom siv tiv thaiv hluav taws hauv cov tsheb fais fab: vim li cas nws thiaj tseem ceeb, koj tuaj yeem mus saib Deepmaterial ntawm https://www.adhesivesmanufacturer.com/ yog xav paub ntau info.