Yini Eyenza Amabhethri e-Lithium Ahlakaniphe?

Emhlabeni wamabhethri, kukhona amabhethri anomjikelezo wokuqapha bese kuba namabhethri angenawo.I-Lithium ibhekwa njengebhethri ehlakaniphile ngoba iqukethe ibhodi lesifunda eliphrintiwe elilawula ukusebenza kwebhethri ye-lithium.Ngakolunye uhlangothi, ibhethri le-asidi eholayo elivalekile alinakho ukulawula kwebhodi ukuze lithuthukise ukusebenza kwalo.?

Phakathi ku ibhethri ye-lithium ehlakaniphilekukhona 3 amazinga ayisisekelo okulawula.Izinga lokuqala lokulawula ukulinganisa okulula okuvele kuthuthukise ama-voltages amaseli.Izinga lesibili lokulawula imojula yesifunda sokuzivikela (PCM) evikela amaseli ama-voltage aphezulu/aphansi kanye nama-currents ngesikhathi sokushaja nokukhipha.Izinga lesithathu lokulawula uhlelo lokuphatha ibhethri (BMS).I-BMS inawo wonke amandla esekethe yebhalansi kanye nemojula yesekethe yokuvikela kodwa inomsebenzi owengeziwe wokuthuthukisa ukusebenza kwebhethri kuyo yonke impilo yayo (njengokuqapha isimo sokushaja kanye nesimo sempilo).

I-LITHIUM BALANCING CIRCUIT

Kubhethri elineshiphu yokulinganisa, i-chip ivele ilinganise amandla omthamo wamaseli ngamanye ebhethri ngenkathi ishaja.Ibhethri libhekwa njengelilinganiselwe uma wonke ama-voltage eseli engaphakathi kokubekezelelana okuncane.Kunezinhlobo ezimbili zokulinganisa, okusebenzayo kanye nokungenzi lutho.Ukulinganisa okusebenzayo kwenzeka ngokusebenzisa amaseli anama-voltage aphezulu ukuze ashaje amaseli anama-voltage aphansi ngaleyo ndlela kunciphisa umehluko we-voltage phakathi kwamaseli kuze kube yilapho wonke amaseli efaniswe eduze futhi ibhethri selishajwe ngokugcwele.I-Passive balancing, esetshenziswa kuwo wonke amabhethri e-Power Sonic lithium, yilapho iseli ngalinye linesiphikisayo esihambisanayo esivulekayo lapho i-voltage yeseli ingaphezu komkhawulo.Lokhu kwehlisa amandla okushaja kumaseli ngamandla kagesi aphezulu okuvumela amanye amaseli ukuthi abambe.

Kungani kubalulekile ukulingana kwamaseli?Kumabhethri e-lithium, ngokushesha nje lapho i-voltage ephansi kunazo zonke ishaya i-voltage yokukhipha inqanyuliwe, izovala ibhethri lonke.Lokhu kungase kusho ukuthi amanye amaseli anamandla angasetshenzisiwe.Ngokufanayo, uma amaseli engalingani lapho eshajwa, ukushaja kuzophazamiseka ngokushesha nje lapho iseli elinamandla kagesi aphezulu lifinyelela kugesi onqanyuliwe futhi akuwona wonke amaseli azoshajwa ngokugcwele.

Yini embi kangaka ngalokho?Ukuqhubeka nokushaja nokukhipha ibhethri elingalingani kuzokwehlisa umthamo webhethri ngokuhamba kwesikhathi.Lokhu kusho nokuthi amanye amaseli azoshajwa aphelele, kanti amanye ngeke ashajwe, okuholela ebhethrini okungenzeka lingalokothi lifinyelele u-100% weSimo Sokushajwa.

Ithiyori iwukuthi amaseli alinganisiwe wonke aphuma ngesilinganiso esifanayo, futhi ngenxa yalokho anqanyulwe nge-voltage efanayo.Lokhu akulona iqiniso ngaso sonke isikhathi, ngakho ukuba ne-balance chip kuqinisekisa ukuthi lapho ishajwa, amaseli ebhethri angafaniswa ngokugcwele ukuze kuvikelwe umthamo webhethri futhi ashajwe ngokugcwele.

I-LITHIUM PROTECTIVE CIRCUIT MODULE

I-Protective Circuit Module iqukethe isekethe yebhalansi kanye nesekhethi eyengeziwe elawula amapharamitha ebhethri ngokuvikela ekushajweni ngokweqile nasekuchithweni kakhulu.Lokhu ikwenza ngokuqapha amandla amanje, ama-voltage, namazinga okushisa ngesikhathi sokushaja nokukhipha futhi iqhathanise nemikhawulo enqunywe kusengaphambili.Uma noma yimaphi amaseli ebhethri efinyelela eyodwa yaleyo mikhawulo, ibhethri liyavala ukushaja noma ukushajwa ngokufanele kuze kube yilapho sekuhlangatshezwane nendlela yokukhipha.

Kunezindlela ezimbalwa zokuvula ukushaja noma ukukhulula futhi ngemva kokuthi isivikelo sisusiwe.Esokuqala sisekelwe esikhathini, lapho isibali-sikhathi sibala inani elincane lesikhathi (isibonelo, imizuzwana engama-30) bese sikhipha ukuvikela.Lesi sibali sikhathi singahluka ngesivikelo ngasinye futhi siyisivikelo sezinga elilodwa.

Eyesibili isekelwe ivelu, lapho inani kufanele lehlele ngaphansi komkhawulo ukuze likhishwe.Isibonelo, ama-voltage wonke kufanele ehle ngaphansi kuka-3.6 volts ngeseli ngayinye ukuze kukhishwe ukuvikelwa kokushaja ngokweqile.Lokhu kungenzeka ngokushesha uma isimo sokukhulula sesihlangatshezwane.Kungenzeka futhi ngemva kwesikhathi esinqunyiwe.Isibonelo, ama-voltage wonke kufanele ehle ngaphansi kwama-volts angu-3.6 iseli ngalinye ukuze avikeleke ngokushaja ngokweqile futhi kufanele ahlale ngaphansi kwalowo mkhawulo amasekhondi angu-6 ngaphambi kokuthi i-PCM ikhiphe ukuvikela.

Okwesithathu kusekelwe emsebenzini, lapho kufanele kuthathwe isinyathelo sokukhulula ukuvikela.Isibonelo, isenzo kungenzeka kube ukususa umthwalo noma ukusebenzisa inkokhiso.Njengokukhululwa kokuvikela okusekelwe enanini, lokhu kukhishwa kungase kwenzeke ngokushesha noma kusekelwe esikhathini.Lokhu kungase kusho ukuthi umthwalo kufanele ukhishwe ebhethrini imizuzwana engu-30 ngaphambi kokuthi isivikelo sikhishwe.Ngokungeziwe esikhathini nenani noma umsebenzi kanye nokukhishwa okusekelwe esikhathini, kubalulekile ukuqaphela ukuthi lezi zindlela zokukhipha zingenzeka kwezinye izinhlanganisela.Isibonelo, i-voltage yokukhipha okuchichimayo kungenzeka uma amaseli ehle ngaphansi kwama-volts angu-2.5 kodwa ukushaja amasekhondi angu-10 kuyadingeka ukuze ufike kuleyo voltage.Lolu hlobo lokukhishwa luhlanganisa zonke izinhlobo ezintathu zokukhishwa.

Siyaqonda ukuthi kunezici eziningi eziholela ekukhetheni okungcono kakhulu ibhethri ye-lithium, futhi ochwepheshe bethu bakhona ukuze basize.Uma unemibuzo engeziwe mayelana nokukhetha ibhethri elilungile lohlelo lwakho lokusebenza, sicela ukhululeke ukuxhumana nomunye wochwepheshe bethu namuhla.