Dab tsi muaj voltage qis txhais tau tias rau cov roj teeb lithium thiab nws yuav ua li cas cuam tshuam kev ua tau zoo
Tso lus
Lithium roj teeb hluav taws xob yog nce ntau yam rau cov khoom siv hluav taws xob Portable, hluav taws xob tsheb, thiab nyob ruaj ruaj rau cov kev cia siab. Cov kev ua tau zoo, thanevity, thiab kev nyab xeeb ntawm cov roj teeb no tau cuam tshuam los ntawm ntau yam kev txheeb ze yog ib qho tseem ceeb tshaj plaws. Tsawg cov kev mob qis qis, yog tias tsis yog tswj tau, tuaj yeem ua rau txo cov roj teeb ua tau zoo, kev phom sij luv, thiab kev nyab xeeb lifespan, thiab kev nyab xeeb lifes. Nkag siab txog cov laj thawj thiab qhov tshwm sim ntawm cov hluav taws xob tsis yog vim li ntawd qhov tseem ceeb rau cov engineers, cov neeg lis haujlwm, thiab lub zog system tsim.
Cov ntawv tshawb fawb txog kev cuam tshuam ntawm cov roj teeb tsis tshua muaj roj teeb li Lithium roj teeb, muaj kev nyab xeeb, thiab cov tswv yim rau kev ntsuas cov kev pheej hmoo no hauv kev siv cov kev siv.
1. Tag Nrho Voltage hauv cov roj teeb lithium
Voltage yog cov hluav taws xob muaj peev xwm sib txawv ntawm cov Cathode (zoo electrode) thiab anode (tsis zoo electrode) hauv lub roj teeb lithium. Nws sawv cev ntawm cov tshuaj lom neeg muaj zog rau hluav taws xob muaj zog rau hauv lub zog hluav taws xob. Rau feem ntau lithium {2} ion hlwb, cov nominal voltage ranges los ntawm 3.6 rau 3.7 volts ib cell. Txawm li cas los xij, qhov voltage tiag tiag txawv thaum them thiab rho tawm cov roj teeb, thiab txhua lub roj roj teeb tau txhais thiab qhov kev ua haujlwm zoo tshaj plaws.
Qhov tsawg kawg nkaus hluav taws xob, lossis tsawg {- voltage txiav, yog qhov chaw pib tseem ceeb. Rau ntau lithium- ion hlwb, qhov tsawg kawg nkaus kev nyab xeeb voltage yog nyob ib ncig ntawm 2.5 volts ib cell. Tshaj qhov txwv no thaum lub sijhawm tawm tuaj yeem ua rau muaj kuab lom dej thiab kev puas tsuaj. Ua kom muaj voltage nyob rau hauv cov kev pom zoo ntau tshaj plaws ua kom muaj txiaj ntsig zoo rau kev ua kom pom zoo.
2. Txhais cov lus hluav taws xob tsawg thiab nws qhov tseem ceeb
Tsawg tsawg tshwm sim thaum lub roj teeb lithium yog tso tawm hauv qab nws cov chaw tsim khoom {{}} teev cov ntsuas hluav taws xob tsawg. Thaum lub roj teeb tseem yuav ua haujlwm, tus mob no ua rau muaj kev ntxhov siab rau sab hauv.
Kev ua haujlwm rov ua haujlwm hauv qis - kev mob siab tuaj yeem ua rau muaj ntau yam teeb meem:
● Tsim ntawm tuab khoom electrolyte interfolyte interfhase (SEI) txheej:Cov txheej txheej nce sab hauv kev tiv thaiv thiab txo peev xwm.
● Tooj liab txiav tawm ntawm Anode tam sim no Collector:Qhov no tuaj yeem ua rau sab hauv luv luv lub sijhawm them rau tom ntej.
● Kev tsis muaj peev xwm poob:Cov kev tshawb fawb tau qhia tias rov ua cov lag luam tsawg - kev ua haujlwm tsis zoo ntawm 12-25% tshaj li ntau pua mus ncig.
Tsawg voltage, yog li ntawd, cuam tshuam ncaj qha ntawm lubRoj teeb ua tau, thanevity, thiab kev nyab xeeb ntawm cov roj teeb lithium.
3. Cov teebmeem ntawm cov hluav taws xob qis ntawm cov roj teeb ua haujlwm
Txo tau
Txo cov roj teeb lithium hauv qab no hauv qab hluav taws xob kom muaj hluav taws xob kev nyab xeeb txo nws lub peev xwm tag nrho. Cov txheej txheem kev puas tsuaj rau cov electrodes, kev loj hlob ntawm SEI txheej, thiab tshuaj tsis txaus ua kom muaj peev xwm fade. Thaum voltage poob qis dua 3.0 volts ib lub cell, lub zog siv tau txo vim tias lub zog yog cov khoom lag luam hluav taws xob thiab them nqi.
Nce sab hauv kev tawm tsam thiab hluav taws xob sag
Tsawg {- kev ua haujlwm ua rau muaj kev tiv thaiv sab hauv, uas txo lub roj teeb muaj peev xwm xa lub zog txuag tau. Voltage sag tshwm sim thaum lub davhlau ya nyob voltage tee nyob rau hauv thauj, kev ua yeeb yam nyuaj. Hauv ntau - Cov pob ntawm tes ntawm tes, ib qho qis qis -} voltage cell yuav cuam tshuam kev ua haujlwm ntawm tag nrho cov kab ke.
Txo qis hluav taws xob ntom ntom
Lub zog ntom ntom yog nyob ncaj qha rau ntawm voltage. Tsawg -} voltage mob txwv kom lub roj teeb los ntawm kev xa nws cov peev xwm tag nrho, txo qis kev ua haujlwm. Cov tshuab uas tsis tuaj yeem tswj nominal voltage nyob rau hauv lub nra lossis txiav tawm thaum ntxov vim tsawg {{voltage tiv thaiv yuav underutilize lub zog khaws cia.
Kev Nyab Xeeb Kev Nyab Xeeb
Kev khiav hauj lwm nyob rau hauv qis - voltage tej zaum tuaj yeem ua kom muaj kev phom sij txaus ntshai. Tshaj {-}}} kev paug yuav ua rau tus tooj liab txiav, sab hauv luv luv, thiab lub peev xwm thermal khiav tawm thaum them rov qab. Kev tsim qauv kom tsim nyog yuav tsum muaj cov kev tiv thaiv cov chaw ua kom muaj kev tawm tsam kom tiv thaiv cov phom sij no.
4. Cov teeb meem ntawm cov hluav taws xob qis hauv cov roj teeb lithium
Muaj ntau yam ua rau muaj qhov qis - voltage tej yam:
Kev Tawm Tsam Ntawm Kev Tawm (Dod):Rov ua dua cov pa hluav taws xob sib sib zog nqus lub roj teeb thiab txo cov hluav taws xob.
Kev laus thiab kev coj mus ncig:Cov Hlwb Qub muaj cov kev tiv thaiv sab hauv ntau dua, ua rau voltage sai poob hauv kev thauj khoom.
Qhov kub tshaj:Txias txias kub txo voltage tso zis, thaum siab kub siab qhov tsis muaj kev mob siab.
Tus Nqi Siab:Cov khoom siv hnyav nce voltage poob, muaj feem cuam tshuam tsawg {{voltage tej xwm txheej.
Kev Tswj Roj Teeb Hluav Taws Xob:Tsis txaus BMS lossis Faulty tsim tau tuaj yeem tso cai hlwb kom tawm hauv qab kev txwv zoo.
Cell Imbalance:Hauv pob, cov hlwb tsis muaj zog tau rub tawm cov hluav taws xob ntau, txo cov system ua tau zoo.
Nkag siab txog cov yam tseem ceeb no yog qhov tseem ceeb rau kev tsim kho cov roj teeb sib luag ua kom haum rau lub roj teeb lithium.
5. Kev tiv thaiv thiab tswj cov hluav taws xob tsawg
Kev siv roj teeb tswj kev tswj hwm (BMS)
Lub zog BMS tsom kwm cell voltages, ntsuas kub, thiab tam sim no, tiv thaiv tshaj- tso. Cell sib tw ua kom txhua lub hlwb nyob hauv kev ruaj ntseg hluav taws xob, tiv thaiv cov kab ke ntawm cov kev pheej hmoo ntawm qis- voltage ua haujlwm.
Teeb tsa cov kev txiav tawm uas tsim nyog
Cov tuam txhab tsim khoom muab qhov tsawg kawg nkaus uas muaj zog rau txhua tus chemistry. Ceev rau voltagages siab dua cov thresholds tiv thaiv kev puas tsuaj. Rau lithium {2} ioniz} ion cells, kev nyab xeeb txiav yog feem ntau 2.5-3.0 volts ib yam li zoo ib yam li kev nyab xeeb ntawm 2.5 volts.
Tswjhwm kub thiab load
Tswj kev ntsuas kub ntxhov siab thiab tsis txhob muaj cov roj teeb hnyav thaum lub roj teeb hluav taws xob yog qhov txo kev ntxhov siab tsawg ntawm lub hlwb. Kev tswj hwm kev tswj hwm kom zoo kuj pab tswj cov voltage ruaj khov thiab txhim kho kev txuag hluav taws xob.
Kev coj ua
Long-term storage should maintain batteries at 30–50% state of charge and moderate temperature to prevent voltage from falling dangerously low due to self-discharge.
Rov qab los ntawm cov voltage tsawg
Cov roj teeb uas tau poob qis hauv qab kev nyab xeeb voltage yuav tau txais txiaj ntsig zoo nrog qeeb, qis - nyiaj them tam sim no. Txawm li cas los xij, cov hlwb ua tsis tau zoo yuav raug kev txom nyem ploj mus. Ua tib zoo saib xyuas thaum rov zoo yog qhov tseem ceeb kom tsis txhob muaj kev phom sij kev nyab xeeb.
6. Kev siv rau cov qauv tsim
Kev siv hluav taws xob tsis yog tsuas yog tsis tsuas yog cov leeg hlwb tab sis kuj System {{}}} theem kev kawm:
Module thiab ntim tsim:Ua kom ntseeg tau ntau volgage npoo thiab muaj kev txhim khu kev qha txiav txiav cov txiav txiav.
Series / parallel concigurations:Tsawg - voltage hlwb tuaj yeem txo tag nrho cov pob ntim pob hluav taws xob thiab kev ua tau zoo.
Tus nqi lifecycle:Voltage -}} Qhov tsis ua raws kev cuam tshuam muaj peev xwm txo tau muaj peev xwm, nce ntev-} cov nqi siv.
Kev Nyab Xeeb Kev Nyab Xeeb Kev Nyab Xeeb:BMS, Kev Tiv Thaiv Kev Nyab Xeeb, thiab thermal kev tswj hwm yuav tsum tau tiv thaiv thiab tswj cov undervoltage.
Xav txog qhov qis dua voltage nyob rau theem tsim ua kom muaj kev nyab xeeb, ntau dua, thiab ntev dua- kav cov tshuab.
7. Kev Ntsuas Qhov Tseem Ceeb thiab Kev Ntsuam Xyuas
● Discharging hauv qab 2.5 volts ib lub cell tuaj yeem ua rau tooj liab cov kev txiav txim siab thiab nrawm muaj peev xwm ploj mus.
● Txo cov nqi hluav taws xob me ntsis tuaj yeem txuas qhov tseem ceeb ntawm voltage kev ntxhov siab tswj hwm.
● Nominal voltages rau lithium {{0} ion hlwb feem ntau yog 3.2 volts, nrog kev nyab xeeb tshuaj voltages ntawm 2.5-30 volts.
Cov tshuaj ntsuas no qhia tau tias kev ua haujlwm hluav taws xob yog thawj qhov kev txiav txim siab roj teeb thiab cov nyiaj.
8. Cov ntawv txheeb xyuas qhov zoo tshaj plaws
Siv qhov siab - precision BMS nrog xov tooj ntawm tes {}}} kev soj ntsuam.
● Zam kev tso tawm hauv qab no kom pom cov kev pom zoo tsawg kawg volasages.
● Tswj qhov kub thiab zam kev siab thauj thaum voltage yog tsawg.
● Cov roj teeb ntawm lub xeev pab pawg thiab ntsuas kub.
● SAIB Voltage Sag Nyob Hauv Kev thauj khoom los ntes cov laus laus.
Cov khoom lag luam tsim muaj volgage margins los tiv thaiv cov undervoltage hauv koob los yog parallel kev teeb tsa.
Ua raws li cov kev coj ua ua kom ntseeg tau txhim khu kev qha cov khoom xa tuaj, kev ua tau zoo ib yam, thiab lub roj teeb ntev lub neej.
