Txhawm rau kom ua tiav kev them nyiaj ceev ceev, lub roj teeb, tus neeg nqa khoom tseem ceeb tshaj plaws hauv cov txheej txheem them, kuj yuav tsum tau kho.Kev them nyiaj ceev ntawm lub roj teeb feem ntau yog nyob ntawm kev them nyiaj thiab kev nthuav tawm ntawm lub roj teeb.Muaj peb qhov laj thawj tseem ceeb rau kev cuam tshuam rau qhov kev nthuav dav ntxiv: cov khoom siv hluav taws xob, cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob thiab lub hwj chim roj teeb kub.Rau cov tuam txhab roj teeb, lub zog them ntawm cov khoom siv hluav taws xob yog lub hom phiaj, thiab cov khoom siv hluav taws xob thiab kev tswj qhov kub thiab txias yog qhov chaw tsim khoom roj teeb tuaj yeem hloov pauv.
Nyob rau hauv lub hwj chim roj teeb txuas, lub peev xwm them ceev ntawm lub roj teeb nyob ntawm ntau lub peev xwm xws li ceev ceev lithium embedding muaj peev xwm ntawm qhov tsis zoo electrode, conductivity ntawm electrolyte, thiab thermal tswj peev xwm ntawm lub roj teeb system.
Thaum them ceev ceev, lithium ions yuav tsum tau nrawm thiab tam sim ntawd kos rau hauv qhov tsis zoo electrode.Qhov no nyuaj rau lub peev xwm ntawm qhov tsis zoo electrodes kom tau txais lithium ions sai sai.Yog hais tias qhov tsis zoo electrode tsis muaj kev kub ceev lithium embedding muaj peev xwm, lithium nag lossis daus lithium dendrite yuav tshwm sim, uas yuav ua rau irreversible attenuation ntawm roj teeb muaj peev xwm thiab shorten kev pab cuam lub neej.Tsis tas li ntawd, electrolyte kuj yuav tsum tau muaj cov conductivity siab thiab yuav tsum tau kub kub kuj, nplaim retardant thiab tiv thaiv overcharge.Ntawm qhov tod tes, kev them nyiaj ceev ceev yuav ua rau muaj kev kub ntxhov ntau ntxiv, thiab kev tswj xyuas thermal ntawm cov roj teeb hluav taws xob yog qhov tseem ceeb heev.
Feem ntau hais lus, hauv kev tsim qauv zoo ntawm lub roj teeb pob, kev tiv thaiv thermal diffusion tuaj yeem ua tau los ntawm kev siv cov khoom siv rwb thaiv tsev thermal nrog kev ua haujlwm zoo dua thermal rwb thaiv tsev, xws li ceramic rwb thaiv tsev pads thiab mica boards.Txawm li cas los xij, ntxiv rau kev tiv thaiv kev tiv thaiv tsis zoo, kev tiv thaiv thermal tiv thaiv kuj tseem ceeb heev.Ntawm Shanghai Auto Show, ntau lub tuam txhab roj teeb hluav taws xob kuj "qhia lawv cov kev txawj ntse" nyob ib puag ncig cov khoom siv tshiab thiab tag nrho cov khoom siv hluav taws xob.
Yav dhau los, lub thev naus laus zis thev naus laus zis thev naus laus zis hauv Ningde era tau npog cov xov tooj hluav taws xob, nrawm ion rings, isotropic graphite, superconducting electrolytes, siab pore diaphragms, multi-gradient electrodes, multipolar pob ntseg, anode muaj peev xwm saib xyuas, thiab lwm yam.
Anotropic thev naus laus zis tso cai rau lithium ions tau kos rau hauv graphite channel 360 degrees txhawm rau txhim kho qhov nrawm nrawm.Anode muaj peev xwm saib xyuas tuaj yeem kho cov nqi them tam sim no hauv lub sijhawm tiag tiag, kom lub roj teeb tuaj yeem ua kom nws lub peev xwm them nyiaj ntau tshaj plaws nyob rau hauv qhov kev nyab xeeb yam tsis muaj lithium tshuaj xyuas sab, thiab ua tiav qhov sib npaug ntawm qhov ceev ceev thiab kev nyab xeeb.Lub roj teeb ternary Kirin tau txais lub siab nickel cathode + silicon-raws li tsis zoo electrode system, nrog lub zog ceev txog li 255Wh / kg, txhawb 5-feeb ceev kub pib thiab 10min them 80%.Txawm li cas los xij, thaum lub sij hawm them nyiaj thiab tso tawm cov txheej txheem, qhov ntim ntawm silicon tuaj yeem siab li 400%, thiab cov khoom siv tau yooj yim rau kev tshem tawm ntawm cov phaj polar, ua rau kom muaj peev xwm sai sai thiab ua rau qhov tsis ruaj khov SEI membrane.Yog li ntawd, cov ntaub ntawv conductive nyob rau hauv Ningde era txais ib leeg-walled carbon nanotubes nrog ib txoj kab uas hla ntawm 1.5 ~ 2 nanotubes, uas muaj ntau khi rau silicon anodes thiab muaj ib tug fuller conductive network.Txawm hais tias silicon anode hais nthuav dav hauv ntim thiab pib tshwm cov kab nrib pleb, lawv tseem tuaj yeem muaj kev sib txuas zoo los ntawm ib lub phab ntsa carbon nanotubes.Tsis tas li ntawd, cov electrolyte ntawm Kirin roj teeb tau txais LiFSI thiab siv FEC additives los tsim lithium fluoride ntawm qhov tsis zoo electrode.Lub ion radius yog me me, uas tuaj yeem kho cov kab nrib pleb hauv lub sijhawm.Nyob rau hauv cov nqe lus ntawm kev tswj thermal, Kirin Battery integrates cov kua txias system thiab thermal rwb thaiv tsev ncoo rau hauv ib tug multi-functional elastic sandwich ntawm lub hlwb.Piv nrog rau cov txheej txheem ua kua-txias phaj nteg saum lub xovtooj ntawm tes, lub tshav kub hloov chaw tau raug plaub npaug.Ua tsaug rau qhov chaw txias dua, qhov ntsuas kub ntawm lub xov tooj ntawm tes tau nce 50%.Vertical txias phaj tsim cov kab rov tav txheeb ze sib cais qhov chaw.Muaj daim ntawv them nyiaj nthuav dav + adiabatic airgel nruab nrab ntawm cov hlwb ntev, uas ua kom cov cua sov ua kom tiav "zero thermal runaway".
Post lub sij hawm: Jun-26-2023