Mechanisms ntawm deformation thiab systematic tiv thaiv mus kom ze rau Lithium hnub ci roj teeb
Apr 24, 2026
Txheej txheem cej luam ntawm qhov ua rau deformation hauv Lithium roj teeb hnub ci
Cov roj teeb hluav taws xob tau siv dav hauv thaj chaw xws li lub zog tshiab tsheb vim lawv cov qauv tsis tu ncua thiab muaj zog ceev. Txawm li cas los xij, vim yog cov yam ntxwv ntawm anisotropic ntawm cov khoom nws tus kheej, tsis sib npaug zog tau siv rau qhov ntev thiab dav cov lus qhia thaum lub sijhawm tsim khoom, uas tuaj yeem yooj yim ua rau deformation tshwm sim xws li kev tsis sib xws hauv lub plhaub, yog li cuam tshuam rau kev nyab xeeb thiab kev pabcuam lub neej ntawm lub roj teeb.
Qhov tshwm sim ntawm cov teeb meem deformation hauv Lithium{0}}ion roj teeb muaj feem cuam tshuam nrog cov yam ntxwv ntawm cov khoom, cov txheej txheem tsim khoom, thiab kev tswj hwm ib puag ncig ntawm cov roj teeb. Nws yog ib qho tsim nyog yuav tsum txheeb xyuas cov laj thawj los ntawm ntau qhov loj me thiab ua cov phiaj xwm tiv thaiv thiab tswj kev ntsuas. Kab lus no txheeb xyuas cov txheej txheem deformation ntawm lithium hlau phosphate fais fab roj teeb, tawm tswv yim kev tiv thaiv kev tiv thaiv, thiab muab cov ntaub ntawv qhia txog kev lag luam ntau lawm.

Qhov laj thawj tseem ceeb rau deformation ntawm lithium roj teeb hnub ci
Hauv Lifepo4 lub zog hluav taws xob tsim hluav taws xob, cov qauv kev ruaj ntseg ntawm lub plhaub yog ncaj qha ntsig txog cov khoom lag luam kev ntseeg tau, thiab cov teeb meem deformation feem ntau yog tshwm sim los ntawm kev sib koom ua ke ntawm cov khoom siv, kev tswj cov txheej txheem, thiab sab hauv thermodynamic xeev. Los ntawm qhov kev xav ntawm cov khoom thiab cov qauv qhov ntev, cov khoom xaiv thiab lub zog tsim ntawm aluminium plhaub yog qhov tseem ceeb. Yog tias 3003 aluminium alloy nrog qis tensile lub zog los yog lub plhaub thickness tsawg dua 0.6 hli yog siv, nws yog feem ntau ua rau deformation nyob rau hauv lub siab thiab thermal stress.
Tsis tas li ntawd, qhov vuam tshav kub cuam tshuam rau cheeb tsam muaj 20% mus rau 30% txo qis hauv lub zog hauv zos vim yog cov txheej txheem rov ua dua tshiab, dhau los ua qhov siab - thaj chaw muaj kev pheej hmoo rau kev ntxhov siab thiab deformation. Yog tias cov txheej txheem laser vuam tsis raug tswj xyuas kom zoo, xws li thaum lub zog siab tshaj 300 W lossis qhov vuam ceev qis dua 30 mm / s, nws tuaj yeem ua rau qhov kub thiab txias hauv zos kom deb tshaj qhov melting point ntawm txhuas (660 degree), lub pas dej molten kom tob dhau, thiab cov cua txias shrinkage kev nyuaj siab nce ntxiv; Tsis tsim nyog weld hlaws tsim, xws li tsis muaj kev ntxhov siab los ntawm kev sib txuas txuas txuas ntxiv los yog cov hlaws hlaws dav tsawg dua 0.8 hli, tuaj yeem txo cov load-cov kabmob muaj peev xwm ntawm cov vuam thiab ua rau muaj kev pheej hmoo ntawm deformation.

Deformation tiv thaiv thiab tswj lub tswv yim
Nyob rau hauv kev teb rau lub deformation mechanism ntawm lub hnub ci zog cia systems lithium roj teeb pob tau hais los saum toj no, kev tiv thaiv thiab kev tswj system tuaj yeem tsim los ntawm cov khoom, cov qauv, cov txheej txheem vuam, thiab lwm yam. Nyob rau hauv cov ntaub ntawv ntawm cov khoom thiab cov txheej txheem optimization, yuav tsum tau siv zog los txhim kho lub load - bearing peev xwm ntawm lub plhaub. Nws raug nquahu kom siv 5052 aluminium alloy nrog lub zog tensile ntau dua, ntxiv 0.5 mus rau 1.0 mm siab qhov cuab lub zog nyob rau sab saum toj npog, thiab nce lub thickness ntawm lub plhaub rau 0.8 mus rau 1.0 hli.
Nyob rau tib lub sijhawm, lub Lithium roj teeb pob tau txais cov txheej txheem sib xyaw ua ke nrog cov laser vuam thiab ultrasonic vuam kom txo tau ib qho kev taw qhia cua sov thiab txhim khu kev ruaj ntseg ntawm thaj chaw vuam. Cov txheej txheem vuam yuav tsum tau tswj kom zoo, thiab nws raug pom zoo kom siv cov txheej txheem vuam gradient, xws li kev sib xyaw ua ke ntawm 200 W / 30 mm / s rau ntu pib, 250 W / 25 mm / s rau ntu nruab nrab, thiab 180 W rau ntu kawg, txhawm rau tswj qhov tob ntawm thaj chaw tshav kub tsis pub dhau 0.5 hli. Lub weld hlaws tsim tau raug hloov los ntawm kev sib txuas txuas mus rau segmented vuam hom, nrog rau txhua ntu ntev li ntawm 5 mus rau 8 hli, tawm hauv 2 hli kev ntxhov siab tso tawm tsam, thiab nce qhov dav ntawm weld hlaws mus rau 1.2 hli los txhim kho lub weld hlaws bearing muaj peev xwm.

Deformation tiv thaiv thiab tswj lub tswv yim
Kev tswj lub siab sab hauv ntawm cov khoom siv roj teeb yuav tsum tau ua los ntawm ob qho kev qhia: kev them nyiaj ntxiv thiab kev tawm tsam roj. Nyob rau hauv cov nqe lus ntawm kev tsim qauv, ib tug elastic buffer txheej nrog ib tug compression tus nqi siab tshaj 50% yuav muab ntsia tau rau sab hauv ntawm lub npog phaj, nrog ib tug tshwj xeeb expansion qhov chaw ntawm 0.5 mus rau 1.0 mm los txo qhov siab los ntawm qhov tsis zoo electrode expansion. Hais txog kev ua kom zoo ntawm cov tshuaj lom neeg, ntxiv 1% mus rau 2% FEC zaj duab xis- tsim cov tshuaj ntxiv thaum lub sijhawm txhaj tshuaj tuaj yeem tiv thaiv kev puas tsuaj txawv txav rau SEI zaj duab xis, tswj cov roj ntau lawm nyob rau hauv tag nrho cov nqi li ntawm 0.5 ml / Ah, thiab txo qis sab hauv siab los ntawm qhov chaw.
Hais txog kev tswj cov txheej txheem, Lithium-Ion roj teeb pob yuav tsum ua kom paub cov cuab yeej ntse tshawb pom thiab siv lub ntsej muag pom kev hauv cov txheej txheem sib dhos los tswj qhov tseeb qhov chaw nyob hauv ± 0.05 hli; Txhim kho lub vuam fixture mus tas li quab yuam clamping hom kom ntseeg tau tias lub clamping quab yuam hloov ntawm 20 mus rau 30 N tsis tshaj 5%, txo qhov kev pheej hmoo ntawm deformation los ntawm kev sib dhos sib txawv. Ntxiv qhov chaw kuaj xyuas lub siab thaum lub sijhawm tsim, uas yuav cia li suab lub tswb thaum kuaj pom lub siab tshaj 5 kPa. Nyob rau tib lub sijhawm, ua ke nrog X-ray nrhiav pom ntawm lub plhaub deformation tus nqi, qhov pib yuav raug tswj tsis pub dhau 0.3% kom ua tiav qhov kev txheeb xyuas ntxov thiab cuam tshuam cov teeb meem deformation.
tiv tauj peb
Yog hais tias koj ntsib kev teeb meem ntsig txog deformation ntawmLithium roj teeb hnub cilos yog xav tau cov txheej txheem optimization kev txhawb nqa thaum lub sij hawm ntau lawm, thov koj xav tiv tauj peb los ntawm lub platform, thiab peb yuav muab koj nrog kev daws teeb meem thiab kev sab laj.








