Lub lithiumroj teeb caisua raws li kev tiv thaiv kev tiv thaiv ntawm qhov zoo thiab tsis zoo electrodes, ua ions tab sis tsis electrons. Nyob rau hauv lub xeev zoo tshaj plaws tom qab electrolyte filling thiab tsim, lub separator yuav tsum tswj kom tiav thiab tiaj tus sib cuag nrog cov electrodes. Txawm li cas los xij, thaum peb disassemble cov roj teeb, peb feem ntau pom muaj qhov hnyav ntawm qhov sib cais. (Qhov no kuj tuaj yeem pom meej meej los ntawm qhov wrinkling ntawm qhov tsis zoo electrode).
Hauv qab no, peb sib tham txog qhov sib cais wrinkling nyob rau hauv peb yam: qhov xwm txheej, qhov ua rau, thiab kev daws teeb meem.
I. Kev puas tsuaj ntawm Separator Wrinkling:
Nce Internal Resistance:Cov qauv microporous ntawm cov khoom sib cais yog puas ntawm qhov chaw wrinkled, cuam tshuam lithium -ion tsheb thauj mus los. Qhov no ua rau muaj kev tiv thaiv sab hauv los ntawm 15%-30%, txo qis kev ua haujlwm ntawm kev them nqi.
Peev Fade:Tsis sib luag electrolyte infiltration hauv thaj tsam wrinkled ua rau txo qis kev siv cov khoom siv. Kev sim cov ntaub ntawv los ntawm qee yam NMC cathode roj teeb pom tias muaj peev xwm ploj mus txog 8% ntawm 100 cycles.
Lithium Dendrite Loj hlob thiab luv luv Circuit Court Risk:Wrinkling ua rau hauv cheeb tsam nce nyob rau hauv tam sim no ceev, nce qhov tshwm sim ntawm lithium dendrite kev loj hlob ntawm graphite anode nto thiab ua rau muaj kev pheej hmoo ntawm luv circuits.
II. Ua rau Separator Wrinkling:
Khoom tsis zoo:Separators nrog deg roughness> 0.3μm (tus qauv Ra tus nqi 0.1-0.3μm) los yog tensile zog <300MPa yog ntau dua wrinkling.
Cov txheej txheem tsis raug: Excessive winding tension fluctuations (exceeding±3% where the standard requires±1%) lead to uneven roll tightness. Other issues include excessive oven temperature gradients (>5℃qhov twg tus nqi tso cai tsawg dua lossis sib npaug li 2 degree).
Cov txheej txheem kub tsis tsim nyog:Kev teeb tsa tsis raug rau qhov ntsuas kub tsis zoo - siab, qhov kub thiab txias, lub sijhawm - ua rau tsis zoo electrode yob shaping.
Unreasonable Electrolyte Filling Txheej Txheem:Cov txheej txheem filling feem ntau suav nrog (nqus kos duab - thawj filling - sawv - ua ntej- them nyiaj - nqus nqus kos - theem nrab filling). Yog tias lub tshuab nqus tsev tsis zoo siab dhau los yog qhov ceev nrawm dhau, nws tuaj yeem yooj yim ua rau kev sib cais ntawm cov khoom sib cais thiab cov electrodes. Tsis tas li ntawd, cov roj yog tsim tom qab ua ntej- them, thiab lub tshuab nqus tsev nqus thaum lub sij hawm ntxiv tuaj yeem tshem tawm cov roj no thiab qee cov electrolyte. Thaum cov roj raug rho tawm, nws tuaj yeem tsim cov channel, kuj ua rau pom wrinkles.
Tsis tiav Electrolyte Infiltration:Yog tias cov electrolyte tsis nkag mus rau hauv tag nrho, tawm hauv qhov chaw qhuav, qhov khoob, lossis npuas ntawm cov electrodes thiab cov khoom sib cais, wrinkling tuaj yeem yooj yim tshwm sim thaum lub tshuab nqus tsev nqus.
Electrode Surface Defects:Inherent defects ntawm lub electrodes (xws li protrusions, pits, thiab lwm yam) tuaj yeem cuam tshuam tau yooj yim npaum li cas cov separator conforms rau lawv, ua rau wrinkling.
III. Kev daws rau Separator Wrinkling:
Cov kev daws teeb meem feem ntau muaj feem xyuam rau cov laj thawj thiab suav nrog kev txhim kho cov khoom tseem ceeb ntawm cov khoom sib cais, thiab txhim kho cov txheej txheem winding, kub nias, ci, thiab electrolyte filling txheej txheem. Tshawb xyuas pebroj teeb ntau lawm kabkev daws teeb meem rau cov txheej txheem optimized.
Los ntawm kev ncua sij hawm infiltration thiab tsim nyog nce qhov kub ntawm infiltration (piv txwv li, infiltration ntawm 45 degree), qhov kev pom zoo infiltration xeev rau cov electrodes tuaj yeem ua tiav.
Tsis tas li ntawd, dhau ntawm cov txheej txheem txhim kho, kev siv coated separators tuaj yeem daws qhov teeb meem wrinkling zoo. Piv txwv li, cov khoom sib cais nrog ib leeg -ib sab PVDF txheej tau txhim kho qhov adhesion tom qab kub nias, tshem tawm tag nrho lossis txo qis. Kawm paub ntxiv txog peb cov qib siabcov khoom siv roj teebmuab, nrog rau coated separators.
TOB NEW ENERGY specializes nyob rau hauv muab cov kev daws teeb meem roj teeb kab, los ntawm kev tsav tsheb thiab kev tshawb fawb kab mus rau huab hwm coj ntau lawm. Peb muab cov cuab yeej kho kom haum, kev txhawb nqa kev tshaj lij, thiab ntau yam ntawm siab - cov ntaub ntawv zoo los pab koj txhim kho koj lub roj teeb tsim thiab cov txheej txheem tshawb fawb, daws cov teeb meem xws li kev sib cais wrinkling zoo.
