Iibhetri ezininzi ze-lithium zingadityaniswa ngochungechunge ukwenza ipakethi yebhetri, enokubonelela ngombane kwimithwalo eyahlukeneyo kwaye inokutshajwa ngokuqhelekileyo ngetshaja efanayo. Iibhetri ze-lithium azidingi nkqubo yolawulo lwebhetri (I-BMS) ukutshaja nokukhupha. Kutheni ke zonke iibhetri ze-lithium ezikwimarike zongeza i-BMS? Impendulo kukhuseleko kunye nobude bexesha.
Inkqubo yolawulo lwebhetri i-BMS (iNkqubo yoLawulo lweBhetri) isetyenziselwa ukujonga nokulawula ukutshaja nokukhupha iibhetri ezinokutshajwa. Umsebenzi obalulekileyo wenkqubo yolawulo lwebhetri ye-lithium (i-BMS) kukuqinisekisa ukuba iibhetri zihlala ngaphakathi kwemida yokusebenza ekhuselekileyo kunye nokuthatha amanyathelo ngokukhawuleza ukuba nayiphi na ibhetri nganye iqala ukudlula imida. Ukuba i-BMS ifumanisa ukuba i-voltage iphantsi kakhulu, iya kuyiqhawula umthwalo, kwaye ukuba i-voltage iphezulu kakhulu, iya kuyiqhawula itshaja. Iya kujonga nokuba iseli nganye ekwipakethi ikwi-voltage efanayo kwaye inciphise nayiphi na i-voltage ephezulu kunezinye iiseli. Oku kuqinisekisa ukuba ibhetri ayifikeleli kwii-voltage eziphezulu okanye eziphantsi ngokuyingozi.–nto leyo edla ngokuba yimbangela yokutsha kwebhetri ye-lithium esiyibonayo kwiindaba. Ingajonga nobushushu bebhetri kwaye ikhuphe ipakethe yebhetri ngaphambi kokuba ishushu kakhulu ukuba ingatsha. Ke ngoko, inkqubo yolawulo lwebhetri i-BMS ivumela ibhetri ukuba ikhuselwe endaweni yokuxhomekeka kwitshaja elungileyo okanye ekusebenzeni okuchanekileyo komsebenzisi.
Kutheni ungatsho'Ngaba iibhetri ze-lead-acid zifuna inkqubo yolawulo lwebhetri? Ukwakhiwa kweebhetri ze-lead-acid akutshi kakhulu, nto leyo eyenza ukuba zingatsha kakhulu ukuba kukho ingxaki yokutshaja okanye yokukhupha itshaji. Kodwa isizathu esiphambili sinxulumene nendlela ibhetri eziphatha ngayo xa itshajiwe ngokupheleleyo. Iibhetri ze-lead-acid nazo zenziwe ngeeseli ezidityanisiweyo ngothotho; ukuba iseli enye inotshaji olungaphezulu kancinci kunezinye iiseli, iya kuvumela kuphela umbane udlule de ezinye iiseli zitshajiwe ngokupheleleyo, ngelixa zigcina i-voltage efanelekileyo, njl. Iiseli ziyabamba. Ngale ndlela, iibhetri ze-lead-acid "zilinganisela" njengoko zitshaja.
Iibhetri zeLithium zahlukile. I-electrode elungileyo yeebhetri zeLithium ezinokutshajwa kwakhona ikakhulu zizinto zeLithium ion. Umgaqo wayo osebenzayo umisela ukuba ngexesha lenkqubo yokutshaja nokukhupha, ii-electron zeLithium ziya kubaleka kumacala omabini ee-electrode ezilungileyo nezingalunganga ngokuphindaphindiweyo. Ukuba i-voltage yeseli enye ivunyelwe ukuba iphakame kune-4.25v (ngaphandle kweebhetri zeLithium ezine-voltage ephezulu), isakhiwo se-anode microporous sinokuwa, izinto zekristale eqinileyo zinokukhula zibangele i-short circuit, kwaye emva koko ubushushu buya kunyuka ngokukhawuleza, ekugqibeleni bukhokelele emlilweni. Xa ibhetri yeLithium itshajwe ngokupheleleyo, i-voltage inyuka ngequbuliso kwaye inokufikelela ngokukhawuleza kumanqanaba ayingozi. Ukuba i-voltage yeseli ethile kwi-battery pack iphezulu kuneyezinye iiseli, le seli iya kufikelela kwi-voltage eyingozi kuqala ngexesha lenkqubo yokutshaja. Ngeli xesha, i-voltage iyonke ye-battery pack ayikafikeleli kwixabiso elipheleleyo, kwaye itshaja ayizukuyeka ukutshaja. . Ke ngoko, iiseli ezifikelela kwi-voltage eyingozi kuqala ziya kubangela umngcipheko wokhuseleko. Ke ngoko, ukulawula nokubeka iliso kwi-voltage iyonke ye-battery pack akwanelanga kwiikhemistri ezisekelwe kwiLithium. I-BMS kufuneka ijonge i-voltage yeseli nganye nganye eyenza ibhetri.
Ngoko ke, ukuqinisekisa ukhuseleko kunye nobomi benkonzo ende yeepakethe zebhetri ye-lithium, inkqubo yolawulo lwebhetri esemgangathweni nethembekileyo i-BMS iyimfuneko ngokwenene.
Ixesha lokuthumela: Okthobha-25-2023
