Ntau tus neeg tau siv los them lawv lub xov tooj thaum hmo ntuj, ua si ua si thaum them nyiaj, lossis txawm tsis quav ntsej lawv cov xov tooj tom qab lawv tau poob thiab khoov.
Cov cwj pwm zoo li no tau txuas ntxiv thawb cov roj teeb lithium mus rau lawv lub cev txwv.Roj teeb overheating, ntxhiab tsw txawv, lossis txawm tias o me ntsis yog lub roj teeb zaum kawg "kev ntxhov siab" rau koj.
Txhawm rau tiv thaiv koj cov cuab yeej thiab koj tsev neeg txoj kev nyab xeeb, peb tau sau cov lus qhia ntxaws nolithium roj teebCov lus qhia txog kev nyab xeeb: los ntawm kev xaiv cov khoom siv tau ntawv pov thawj los tuav cov xwm txheej kub ntxhov, qhov kev paub tseem ceeb no yog ib yam uas txhua tus neeg siv khoom siv hluav taws xob nquag yuav tsum nco ntsoov.
Hom roj teeb lithium twg yog qhov ua rau tawg?
Technically, txhua hom lithium roj teeb muaj kev pheej hmoo ntawm hluav taws kub lossis tawg nyob rau hauv cov xwm txheej hnyav, txawm hais tias qhov kev pheej hmoo yuav txawv nyob ntawm lawv cov tshuaj muaj pes tsawg leeg.Lithium cobalt Oxide (LCO)cov roj teeb tam sim no feem ntau ua rau cov xwm txheej zoo li no; vim tias lawv lub zog tsis tshua muaj zog thiab tsis zoo thermal stability, lawv tuaj yeem yooj yim ua rau muaj kev kub ntxhov thermal khiav tawm yog tias overcharged lossis raug cuam tshuam rau sab nraud.
Ntxiv thiab,Nickel Manganese Cobalt (NMC)thiabNickel Cobalt Aluminium (NCA)roj teeb-feem ntau siv hauv smartphones thiab laptops- yog cov neeg ua haujlwm siab -, tab sis cov nickel thiab cobalt uas lawv muaj ua rau muaj kev kub ntxhov ntau heev. Yog hais tias ib qho luv luv Circuit Court tshwm sim, cov tshuaj tiv thaiv ceev ceev heev, ua kom muaj cua sov txaus los ua kom muaj hluav taws kub los yog tawg.
Piv txwv li,Lithium Hlau Phosphate (LFP)roj teeb muaj kev nyab xeeb dua. Lawv muaj ntau dua thermal runaway kub thiab cov khoom siv ruaj khov dua; Txawm tias thaum puas lawm, lawv feem ntau tsuas yog tso pa taws los yog hluav taws kub es tsis tawg hnyav.
Dab tsi ua rau Lithium Ion roj teeb tawg?
Los ntawm kev xav ntawm lub cev thiab tshuaj lom neeg, qhov laj thawj tseem ceeb ntawm lithium -ion roj teeb tawg yog cov tshuaj tiv thaiv kab mob hu uathermal khiav. Muab qhov yooj yim, qhov no tshwm sim thaum lub tshav kub tsim hauv lub roj teeb nyob deb tshaj tus nqi uas nws muaj peev xwm dissipate, ua rau kub mus rau kauv tawm ntawm kev tswj thiab nws thiaj li ua rau hluav taws kub los yog tawg.
Cov cim tshwj xeeb rau qhov tshwm sim no tuaj yeem categorized raws li hauv qab no:
1. Internal luv Circuit Court
Qhov no yog qhov feem ntau tshwm sim thiab feem ntau zais qhov ua rau. Thaum lubcais(cov yeeb yaj kiab ultra- nyias nyias uas ua kom qhov zoo thiab qhov tsis zoo electrodes sib nrug) raug cuam tshuam, cov electrodes kov ncaj qha. Qhov no ua rau muaj kev kub ntxhov loj heev hauv tam sim no thiab ua kom muaj cua sov siab heev. Qhov kev ua tsis tiav no tuaj yeem tshwm sim los ntawm:
- Kev laus roj teeb:Ntev- caij tsheb kauj vab tuaj yeem ua rau kev loj hlob ntawm "lithium dendrites"-microscopic, koob-zoo li cov qauv uas tuaj yeem tho qhov sib cais.
- Manufacturing Defects:Cov me me hlau tsis huv tau qhia thaum lub sijhawm tsim khoom tuaj yeem ua rau luv luv tom qab lub roj teeb lub neej.
2. Kev puas tsuaj rau lub cev thiab kev nyuaj siab
Cov roj teeb lithium yog qhov xav tsis thoob. Tej yam hnyavcuam tshuam, crushing, los yog nkag mustuaj yeem ua rau lub cev puas tsuaj rau sab hauv. Piv txwv li, tso lub xov tooj thiab denting lub roj teeb, los yog ib tug siab - kev sib tsoo ceev nyob rau hauv ib tug hluav taws xob tsheb, yuav ua rau ib tug loj tam sim ntawd - scale nyob rau hauv luv luv, feem ntau ua rau lub casing rau rupture thiab cov ntsiab lus mus ignite thaum sib cuag nrog huab cua.
3. Kev them nqi txawv txav (Overcharging & Faulty Charging)
Yog tias lub roj teeb tiv thaiv Circuit Court tsis ua haujlwm,overchargetuaj yeem ua rau cov qauv ntawm cov cathode tawg. Tshaj lithium ions ces sau rau ntawm qhov chaw ntawm lub anode li nws yog xim hlau lithium, uas tuaj yeem tho qhov sib cais. Tsis tas li ntawd, kev siv cov khoom siv hluav taws xob tsis sib haum siab - lub hwj chim chargers lossis qis - cov kab hluav taws xob zoo tuaj yeem ua rau lub roj teeb overheat sai; Yog tias qhov kub tsis tuaj yeem khiav, nws ua rau thermal khiav tawm.
4. High-Tsub Ib puag ncig
Cov roj teeb lithium yog qhov tsis tshua muaj siab rau cua sov. Tawm hauv lub tsheb kub nyob rau hauv tshav ntuj ncaj qha, los yog tsis muaj cua sov dissipation thaum lub sij hawm them nyiaj los yog tawm, ua kom cov tshuaj tiv thaiv sab hauv. Thaum qhov kub nce mus txog qhov tseem ceeb (feem ntau ntawm 130℃thiab 150 degree), qhov sib cais melts, cov electrolyte pib decompose thiab tso tawm cov roj hluav taws xob, thaum kawg ua rau muaj kev kub ntxhov lossis tawg.
Kos npe rau koj lub roj teeb yuav muaj kev pheej hmoo ntawm kev tawg
Txhawm rau txheeb xyuas seb lub roj teeb puas muaj kev pheej hmoo ntawm kev tawg, muaj ob peb lub cim ceeb toom intuitive. Yog tias koj pom ib qho ntawm cov hauv qab no, koj yuav tsum tsis txhob siv lub cuab yeej tam sim ntawd:
1. Roj teeb o (Qhov Pom Pom Zoo Tshaj Plaws)
Yog tias koj pom lub nraub qaum ntawm koj lub xov tooj bulging, koj lub laptop keyboard warping, lossis lub roj teeb casing saib "puffy" zoo li nws tau ntim nrog huab cua, qhov no yog qhov qhia meej tiasgas tau tsimhauv lub roj teeb. Qhov no txhais tau hais tias cov qauv tshuaj sab hauv tau ua tsis tiav, thiab nws tuaj yeem ntes hluav taws txhua lub sijhawm vim muaj kev kub ntxhov ntau dhau los yog qhov sib cais sib cais.
2. Thaum tshav kub kub tsis zoo
Yog tias koj lub cuab yeej kub dhau los kov thaum them lossis siv (tsis suav nrog qhov xav tau cua sov los ntawm kev ua si hnyav), lossis yog tias nwsheats li tsis muaj laj thawj thaum tsis ua haujlwm, nws qhia tau tias micro- luv luv Circuit Court twb tshwm sim nyob rau hauv.
3. Cov ntxhiab tsw txawv lossis haus luam yeeb
Yog tias koj hnov ntxhiab tswacidic, metallic, los yog hlawv tsw, qhov no feem ntau yog ib qho cim ntawm electrolyte to los yog sab hauv smoldering. Yog tias koj pom txawm tias cov pa luam yeeb faint, txav lub cuab yeej mus rau qhov chaw qhib kom deb ntawm cov khoom siv hluav taws xob tam sim ntawd.
4. Kev them nyiaj tsis raug
Yog lub roj teebfeem pua dhia wildly(piv txwv li, poob ntawm 50% mus rau 10% tam sim ntawd) lossis yog tias nws tsis kam them tag nrho, cov roj teeb lub hlwb muaj hnub nyoog hnyav lossis puas, ua rau lawv tsis ruaj khov.
5. Tawm los yog tsis muaj xim
Cov tsos ntawm oily kua los yog cov kab mob ntawm corrosion ntawm lub roj teeb nto txhais tau hais tias cov txheej casing tau raug cuam tshuam. Txij li thaumlithium roj teebhnov mob hnyav nrog dej thiab huab cua, lub xeev no yog qhov txaus ntshai heev.
Cov xwm txheej uas cov roj teeb tawg
Hauv lub neej tiag tiag, lithium roj teeb tawg feem ntau tshwm simthaum lub sij hawm them nqi, tshwj xeeb tshaj yog thaum siv tsis sib xws, pheej yig chargers, them nyob rau hauv siab - qhov kub thiab txias nyob ib puag ncig, los yog tso ib tug ntaus ntawv plugged nyob rau hauv lub sij hawm ntev tom qab nws twb puv lawm -tag nrho cov uas ua rau muaj kev pheej hmoo ntawm thermal runaway.
Lwm qhov kev pheej hmoo siab - yogua rau lub roj teeb ua rau lub cev hnyav, xws li tso lub xov tooj los ntawm qhov siab thiab deforming nws cov qauv sab hauv, lossis lub tsheb hluav taws xob lub chassis noj hnyav thaum tsav tsheb; xws li kev puas tsuaj ntawm lub cev tam sim no tuaj yeem ua rau muaj kev cuam tshuam nrog luv luv.
Ntxiv thiab,tso cov khoom siv nyob rau hauv qhov chaw tsis zooyog ib qho teeb meem loj, xws li tsis nco qab lub xov tooj lossis lub txhab nyiaj fais fab ntawm lub hnub-drenched dashboard nyob rau lub caij ntuj sov, los yog siv lawv ntev -lub sij hawm nyob rau hauv ntub los yog corrosive chaw, uas accelerates roj teeb aging thiab casing tsis ua hauj lwm.
Thaum kawg,tsis tau tso cai disassembly lossis hloov kho(xws li hloov lub roj teeb uas tsis yog- qub qub- muaj peev xwm version) feem ntau tsis muaj kev tiv thaiv kev tiv thaiv hluav taws xob thiab rwb thaiv tsev thermal, ua rau nws muaj hluav taws kub lossis tawg thaum siv txhua hnub.
Yuav ua li cas kom muaj kev nyab xeeb tuav lub roj teeb puas lossis o?
Thaum cuam tshuam nrog lub roj teeb puas lossis o, thawj kauj ruam tseem ceeb tshaj plaws yog uatam sim ntawd nres them nws thiab fais fab tuag lub cuab yeej; Tsis txhob sim nias rau ntawm lub pob los yog tho lub qhov nrog cov khoom ntse, vim qhov no yuav ua rau cov electrolyte tuaj yeem cuam tshuam nrog huab cua thiab ua rau muaj hluav taws kub hnyav lossis txawm tias tawg.
Koj yuav tsum txav lub cuab yeej sai sai rau ib qhoqhib, zoo- qhov cua qhov chaw nyob deb ntawm cov khoom siv hluav taws xob(xws li cov rooj tog ntoo, kab hlau rhuav, lossis ntaub pua plag); yog tias ua tau, muab tso rau ib ntus rau hauv ib lub thawv uas tsis yog{0}}cov hlau uas tsis muaj hluav taws kub los yog lub thoob uas muaj xuab zeb. Thaum tuav, sim zam kom tsis txhob kov cov kua dej los ntawm koj txhais tes liab qab- hnav hnab looj tes tiv thaiv yog qhov zoo tshaj plaws los tiv thaiv kev kub nyhiab.
Tsis muaj ib qho xwm txheej twg koj yuav tsum pov lub roj teeb li no rau hauv lub thoob khib nyiab li niaj zaus, raws li lub compression thaum lub sij hawm thauj khoom khib nyiab los yog ua tau yooj yim ignite hluav taws. Cov txheej txheem raug yog hu rau ib lub chaw tshaj lij hluav taws xob siv hluav taws xob rov ua dua tshiab los yog nrhiav qhov kev tso tawm raws li -tawm qhov chaw rau cov khib nyiab pov tseg; Thaum lub sij hawm thauj, siv lub hnab yas uas tsis yog - conductive hnab los yog daim kab xev hla lub roj teeb terminals kom muaj kev nyab xeeb thoob plaws hauv cov txheej txheem.
Kev tiv thaiv kom tsis txhob muaj roj teeb tawg
Txhawm rau txo qhov kev pheej hmoo ntawm lithium roj teeb tawg, koj tuaj yeem siv cov kev tiv thaiv hauv qab no:
- Siv cov khoom qub los yog ntawv pov thawj:Nco ntsoov lo rau cov thawj chargers thiab cables, los yog xaiv thib peb - tog hom uas tau dhau los3C, UL, lossis CE daim ntawv pov thawj. Tsawg- cov khoom siv hluav taws xob zoo feem ntau tsis muaj qhov tseem ceeb tshaj qhov hluav taws xob thiab kev tiv thaiv overcurrent, uas yog lub hauv paus tseem ceeb rau kev khiav tawm thermal.
- Tsis txhob muaj qhov kub thiab txias ib puag ncig: Lithium roj teebyog rhiab heev rau cua sov.Tsis txhob tso koj lub xov tooj lossis lub txhab nyiaj fais fab hauv lub tsheb uas raug tshav ntuj ncaj qha, thiab tsis txhob them lawv ze ntawm lub tshuab hluav taws xob lossis hauv qhov chaw tshav ntuj. Ib yam li ntawd, huab cua txias tuaj yeem ua rau lub roj teeb sab hauv.
- Xyuas kom muaj cua sov Dissipation:Thaum them nyiaj, tso koj lub cuab yeej rau ntawm ib qho nyuaj, tiaj tus (zoo li lub rooj).Tsis txhob them rau hauv ncoo, txaj pw, lossis sofas, raws li cov ntaub ntawv mos no ntxiab cua sov thiab ua rau lub roj teeb kub hnyiab tau sai.
- Tiv thaiv kev cuam tshuam lub cev:Sim kom tsis txhob poob, nyem, lossis ntaus koj lub cuab yeej. Yog tias koj lub xov tooj raug mob lub cev loj, lub roj teeb sab hauv yuav raug deformed lossis muaj micro- luv luv txawm tias lub vijtsam tsis tawg; nws raug pom zoo kom muaj kev kuaj xyuas.
- Ua kom muaj kev noj qab haus huv ntau yam:Sim tsis txhob cia lub roj teeb ntws mus rau 0% ua ntej them, thiab tsis txhob cia nws mus tas li 100% rau lub sijhawm ntev. Khaws tus nqi nruab nrab20% thiab 80%ho txhim kho tshuaj stability.
- Txo siab -Lub zog ua haujlwm thaum them nyiaj:Tsis txhob khiav 3D ua si loj lossis video kho software thaum them nyiaj. Qhov no ua rau lub roj teeb ua haujlwm nrog them cov cua sov thiab ua haujlwm kub ib txhij, ua rau muaj kev pheej hmoo ntawm overheating.
- Tsis tu ncua xyuas cov cim ceeb toom:Yog tias koj pom koj lub cuab yeejtau txais kub txawv txawv, them qeeb qeeb, muaj qhov poob ntawm lub roj teeb tam sim ntawd, lossis pom me ntsis bulging ntawm lub casing, tsum tsis txhob siv tam sim ntawd thiab nrhiav kev hloov pauv. Tsis txhob sim them nws ntxiv.
Yuav ua li cas yog tias lub roj teeb Lithium Ion tiag tiag tawg?
Yog tias lub roj teeb lithium -ion roj teeb tiag tiag ntes hluav taws lossis tawg, koj txoj cai tseem ceeb yog kev nyab xeeb ntawm tus kheej- nyob twj ywm thiab ua sai sai.
Ua ntej thiab foremost,Tsis txhob sim tua hluav taws lithium roj teeb nrog dej; lithium yog cov hlau reactive heev uas tuaj yeem tsim cov roj hydrogen thaum nws tsoo dej, ua rau muaj kev tawg hnyav dua, thiab cov hluav taws xob xau tuaj yeem tsim cov pa phem thaum sib cuag.
Yog tias qhov hluav taws kub me me thiab tswj tau, ua ntej siv aClass D qhuav hmoov extinguisher(tshwj xeeb rau cov hluav taws kub hlau), los yog smother nrog ntau cov xuab zeb los yog ci dej qab zib; ib daim pam hluav taws kub siab kuj yog ib qho kev xaiv zoo. Yog tias lub cuab yeej txuas rau,tam sim ntawd txiav lub hwj chimtsuas yog tias nws muaj kev nyab xeeb ua li ntawd, tab sis tsis txhob pheej hmoo ncav cuag lub ntsaws nws tus kheej.
Yog tias qhov hluav taws kub tswj tsis tau hauv vib nas this lossis ua pa taws hnyav,khiav tawm txhua tus tam sim ntawd, kaw lub qhov rooj kom muaj kev sib kis, thiab ceev nrooj rov qab mus rau qhov chaw sab nraum zoov sab nraud kom hu rau cov kev pabcuam xwm txheej ceev. Txawm hais tias qhov hluav taws kub tshwm sim tom qab koj tau khiav tawm, tsis txhob mus ze nws tam sim ntawd;lithium roj teebyog qhov tsis zoo rau "re-ignition," qhov twg hauv thermal runaway tuaj yeem ua rau lwm teev hluav taws lossis hnub tom qab.
Ntev -Lub Sijhawm Kev Nyab Xeeb Cov Lus Qhia rau Kev Siv Lithium Ion roj teeb
Tus yuam sij rau lithium -ion roj teeb kev nyab xeeb thiab kev siv tau ntev nyob hauvtswj qhov kub thiab txiasthiabnruab nrab them.
Ua ntej,cua sov yog lub roj teeb tus yeeb ncuab phem tshaj, yog li tsis txhob tsub nqi lossis tawm hauv koj lub cuab yeej nyob rau hauv qhov kub siab - ib puag ncig, xws li lub tsheb nres hauv lub hnub.
Thib ob, xyaumntiav them thiab tso tawm: sim ua kom lub roj teeb nyob nruab nrab ntawm20% thiab 80%Thaum twg los tau, tsis txhob cia nws poob mus rau 0% lossis khaws cia ntawm qhov 100% mus ntev. Yog tias koj tsis siv lub cuab yeej ib ntus, khaws cia rau hauv qhov chaw txias nrog lub roj teeb nyob ib puag ncig 50%.
Thaum kawg,tsis txhob siv cov khoom siv puas lossis tsawg - zoo, thiab yog tias koj pom lub roj teebo, overheating ntau dhau, los yog ntxhiab tsw txawv txawv, tsum tsis txhob siv tam sim ntawd thiab rov siv dua kom zoo -tsis txhob sim nyem lossis disassemble nws.
FAQ
Dab tsi ua rau lub roj teeb tawg thaum them nyiaj?
Lub roj teeb tawg thaum lub sij hawm them nyiaj feem ntau yog tshwm sim los ntawm ntau yam txawv txav tshwm sim nyob rau tib lub sijhawm. Cov laj thawj tseem ceeb muaj xws li overheating, gas buildup, thiab internal short circuits.
Piv txwv li, kev them nyiaj ntawm qhov hluav taws xob lossis cov khoom siv hluav taws xob dhau ntawm lub roj teeb qhov tsim txwv (overcharging) tuaj yeem ua rau cov electrolyte tawg thiab ua kom muaj roj, ua rau lub siab sab hauv.
Tsis tas li ntawd, cov khoom siv hluav taws xob tsis sib xws lossis lub roj teeb ua haujlwm tsis zoo (BMS) tuaj yeem ua tsis tau raws li lub sijhawm them nyiaj. Yog tias lub roj teeb muaj kev tsim khoom tsis xws luag, muaj hnub nyoog hnyav, lossis tau raug puas tsuaj rau lub cev (xws li los ntawm crushing lossis puncture), nws yuav ua rau muaj kev cuam tshuam ntau dua rau hauv lub voj voog luv luv thaum them nyiaj, uas tuaj yeem ua rau kub ceev thiab muaj peev xwm ua rau thermal runaway.
Qhov kub nyob ib puag ncig siab, tsis muaj cua sov dissipation, los yog them nyiaj rau hauv qhov chaw uas nyob ib puag ncig tuaj yeem ua rau muaj kev pheej hmoo ntawm kev kub ntxhov thiab kev nthuav dav roj.
Rau cov hlau lead-acid roj teeb, cov roj hydrogen tso tawm thaum lub sij hawm them nyiaj tuaj yeem kub hnyiab tau yog tias raug hluav taws xob hauv qhov cua tsis zoo. Hauv qhov sib piv, kev tawg hauv lithium-ion roj teeb feem ntau cuam tshuam nrog cov kev cuam tshuam ntawm cov saw hlau tshwm sim los ntawm thermal khiav tawm.
Lub xov tooj roj teeb puas tuaj yeem tua koj?
Thaum lub roj teeb smartphone tawg tuaj yeem ua rau tuag taus nyob rau hauv qhov xwm txheej hnyav, qhov tshwm sim ntawm qhov xwm txheej no tsawg kawg. Feem ntau qhov xwm txheej feem ntau ua rau kub hnyiab, scalds, lossis hluav taws kub hauv zos. Kev tuag tshwm sim los ntawm cov roj teeb tawg feem ntau yuav tsum muaj kev sib xyaw ua ke ntawm cov khoom tshwj xeeb, xws li lub roj teeb uas muaj kev kub ntxhov hnyav ntawm qhov ze (xws li, tawm tsam lub ntsej muag lossis hauv hnab tshos), igniting cov khoom siv hluav taws xob nyob ze; los yog ua kom muaj hluav taws kub thiab pa taws lom nyob rau hauv ib qho chaw kaw.
Puas Yog Lub Xov Tooj Roj Teeb Tseem Ceeb Npaum Li Cas?
Thaum lub roj teeb ntawm lub xov tooj ntawm tes tawg, qhov kev phom sij tseem ceeb tsis yog lub zog ntawm qhov tawg nws tus kheej, tab sis yog qhov siab - qhov kub thiab txias, nplaim taws, thiab cov pa phem uas tshwm sim los ntawm thermal runaway hauv lithium roj teeb. Cov kev phom sij no tuaj yeem ua rau kub hnyiab tau sai sai, ua rau cov khaub ncaws kub hnyiab lossis cov khoom siv hluav taws xob nyob ze, thiab tseem ua rau hluav taws kub hauv zos.
Lub Lithium o tuaj yeem o-Ion roj teeb puas tuaj yeem tawg tau?
Lub pob qhov tseem ceeb qhia tau hais tias cov roj tau tsim hauv lub roj teeb thiab cov khoom siv lossis tshuaj lom neeg tau tshwm sim (xws li electrolyte decomposition, sab hauv luv luv, lossis kev laus). Lub sijhawm no, lub roj teeb nyob hauv lub xeev tsis ruaj khov. Yog hais tias nws raug them, raug tshav kub, compressed, los yog punctured, qhov no yuav ua rau thermal runaway, uas yuav ua rau hluav taws kub los yog tawg.
