Thermal Runaway: Koj Lithium -Ion roj teeb npog phaj tuaj yeem tiv taus nws

Sep 05, 2025

Raws li Ministry of Emergency Management, Tuam Tshoj tau tshaj tawm 42 lithium -ion roj teeb thermal runaway raug xwm txheej hauv H1 2025, 70% cuam tshuam nrog cov roj teeb pob kev puas tsuaj. Ib lub lithium-ion roj teeb npog phaj yog thawj kab ntawm kev tiv thaiv thermal runaway- nws qhov kev ua tau zoo cuam tshuam rau kev nyab xeeb. Kab lus no tshawb txog nws cov kev xav tau ntawm thermal resistance, xaiv cov khoom siv, kev tsim qauv, daim ntawv thov scenarios, thiab Xiamen APOLLO cov kev daws teeb meem.

 

Core Performance Requirements rau Thermal Runaway Resistance

1. Siab -Tsub Tolerance

Lub roj teeb txhuas npog siv 6061-T6 aluminium alloy, uas tswj kev ruaj ntseg ntawm 250-300 degree. Thaum lub sij hawm thermal runaway, nws yuav tsis yaj tam sim ntawd, yuav 5-8 feeb rau cov tshuab cua txias kom qhib.

 

2. Impact Resistance Nyob rau hauv Thermal Stress

Lub npog phaj yuav tsum tiv taus 50-80kN cuam tshuam quab yuam thaum lub roj teeb sab hauv siab nce mus rau 3MPa (ib qho xwm txheej thermal runaway). Nws tiv thaiv cov khoom tawg los ntawm kev tawg tawm sab nraud thiab ua rau cov khoom nyob ze

 

3. Sealing Integrity Maintenance

Lub npog phaj sealing gasket (ua los ntawm silicone roj hmab nrog siab -kub tsis kam) yuav tsum nyob twj ywm ntawm 200℃. Nws nres electrolyte to thaum lub sij hawm pib thermal khiav, tsis txhob muaj hluav taws kub txaus ntshai.

 

Cov txheej txheem xaiv cov khoom siv rau Kev Ua Haujlwm Thermal Runaway

1. 6061-T6 aluminium alloy:Zoo tagnrho rau lub hwj chim roj teeb npog phaj. Nws muaj qhov melting point ntawm 605℃thiab zoo formability, ntsuas tus nqi thiab thermal kuj. Nws yog dav siv nyob rau hauv cov neeg nrog caij EV roj teeb pob ..

 

2. 304 stainless hlau:Haum rau prismatic lithium roj teeb ntxiv. Nws tiv thaiv corrosion los ntawm leaked electrolytes thaum lub sij hawm thermal runaway, tab sis nws qhov ceev dua (7.93g / cm³) ntxiv 10-15% rau roj teeb pob hnyav.

 

3. Aluminium- khoom siv:Ua ke aluminium alloy lub teeb yuag thiab ceramic siab -kub tsis kam. Nws ua siab ntev 400℃tab sis tus nqi 30% ntau dua li cov ntshiab txhuas, siv nyob rau hauv siab -kawg lub zog cia roj teeb.

 

Kev tsim qauv tsim kom zoo rau kev tiv thaiv Thermal Runaway

 

1. Siab Relief Valve Layout

Ntxiv 2-3 lub siab nyem li qub ntawm lub hwj chim roj teeb npog phaj. Txhua lub valve qhib ntawm 1.5-2MPa (qis dua lub roj teeb tawg siab), tso cov pa hauv nruab nrab kom txo tau qhov kev pheej hmoo tawg thaum lub sij hawm thermal runaway.

 

2. Reinforced Edge Structure

Thicken lub npog phaj ntug los ntawm 1.5-2mm (los ntawm 1mm mus rau 2.5-3mm). Qhov no ntxiv dag zog rau kev sib txuas nrog lub plhaub roj teeb, tiv thaiv lub hau los ntawm kev sib cais thaum lub siab sab hauv

 

3. Thaum tshav kub kub rwb thaiv tsev txheej ntxiv

Bond ib 0.5mm- tuab ceramic fiber txheej rau lub npog phaj sab hauv. Nws txo cov cua sov hloov mus rau ib puag ncig sab nraud los ntawm 40%, tiv thaiv cov khoom siv hluav taws xob nyob ze los ntawm siab - qhov kub thiab txias.

 

Lithium-ion Battery Cover Plate Details Show

 

Daim ntawv thov Scenario ntawm Anti-Thermal Runaway Battery Cover Plates

 

Los tiv thaiv -thermal runawayroj teeb npog daim hlauyog dav siv nyob rau hauv qhov tseem ceeb lithium{0}}ion roj teeb teb. Hauv cov neeg nrog caij EVs (piv txwv li, BYD Han), lithium- ion roj teeb npog phaj ua haujlwm nrog cov roj teeb tswj cov txheej txheem kom ua rau lub siab nyem li ntawm 3 vib nas this ntawm thermal runaway. Hauv cov khoom siv hluav taws xob hauv tsev, lub prismatic lithium roj teeb annexe tiv taus ntev -lub sij hawm kub siab (60-}80 degree) thaum them nyiaj, txo cov kev pheej hmoo ntawm thermal runaway. Hauv kev lag luam tsheb npav hluav taws xob, cov roj teeb txhuas npog tiv thaiv kev vibration thiab kub hloov, ua kom muaj kev nyab xeeb mus ntev. Cov xwm txheej no txheeb xyuas lub hau npog lub luag haujlwm tseem ceeb hauv kev tiv thaiv thermal khiav tawm.

 

Xiamen APOLLO's Anti-Thermal Runaway Battery Cover Plate Solutions

 

Xiamen APOLLO's lithium-ion roj teeb npog phaj siv 99.8% siab-purity 6061-T6 aluminium alloy (siab dua li kev lag luam 99.5% purity), uas txhim kho siab -kub stability los ntawm 15%. Peb lub roj teeb npog phaj tau dhau 4-cov kauj ruam kev kuaj xyuas zoo (siab-kub tsis kam, cuam tshuam tsis kam, sealing, siab nyem) - nruj dua li kev lag luam 3-kauj ruam kuaj - thiab ua tau raws li IATF 16949 thiab UL cov qauv.

 

Peb muab cov kev pabcuam hloov tau yooj yim: kho qhov tuab (1-3mm) thiab lub siab nyem valve kom muaj nuj nqis ntawm prismatic lithium roj teeb ntxiv raws li cov neeg siv khoom roj teeb qauv (EV, lub zog cia). Peb lub hiav txwv thoob ntiaj teb- av- huab cua thauj khoom xa mus rau European chaw nres nkoj hauv 18-25 hnub, North American chaw nres nkoj hauv 15-22 hnub, thiab cov teb chaws Asia hauv 5-10 hnub. Peb pab neeg tom qab kev muag khoom muab kev txhawb nqa 24-teev, pab cov neeg siv khoom daws teeb meem kev tiv thaiv kev tiv thaiv kev sib txuam rau cov roj teeb pob.

 

Lithium-ion Battery Cover Plate

 

tiv tauj peb

 

Ms. Tina from Xiamen Apollo

 

 

 

 

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