Ukhuseleko lweebhetri ze-lithium kunye neebhetri ze-lead-asidi zihlala ziyinto ephikisanayo phakathi kwabasebenzisi.Abanye abantu bathi iibhetri ze-lithium zikhuselekile kuneebhetri ze-lead-acid, kodwa abanye bacinga ngokuchaseneyo.Ngokombono wesakhiwo sebhetri, iipakethi zebhetri ze-lithium zangoku ziyiibhetri ze-18650 zokupakisha, kwaye iibhetri ze-lead-asidi ziyisiseko se-lead-free-asidi ibhetri kunye nokusebenza kakuhle kokutywinwa, kwaye imingcipheko yomibini iyafana.Ngubani okhuselekileyo, jonga phantsi kwaye uya kwazi!

ibhetri ye-lithium:

Iibhetri zeLithium luhlobo lweebhetri ezisebenzisa isinyithi se-lithium okanye i-lithium alloy njengento engafanelekanga ye-electrode kwaye isebenzise isisombululo se-electrolyte esingenamanzi.Iibhetri zeLithium zinokwahlulwa ngokwezigaba zibe zimbini: iibhetri zetsimbi ye-lithium kunye neebhetri ze-lithium-ion.Kwi-1912, iibhetri zetsimbi ze-lithium zaqala ukucetyiswa kwaye zafundwa nguGilbert N. Lewis.Ngenxa yeepropathi zemichiza esebenzayo kakhulu yentsimbi ye-lithium, ukusetyenzwa, ukugcinwa, kunye nokusetyenziswa kwentsimbi ye-lithium kuneemfuno eziphezulu kakhulu zokusingqongileyo.Ngoko ke,iibhetri ze-lithiumazizange zisetyenziswe ixesha elide.Ngophuhliso lwesayensi kunye nobuchwepheshe, iibhetri ze-lithium ngoku zihamba phambili.

Iibhetri zelead-asidi:

Ibhetri ye-Lead-acid (VRLA) ibhetri yokugcina i-electrode yayo yenziwe ngokukodwa ngelothe kunye ne-oxides yayo, kwaye i-electrolyte yayo iyisisombululo se-sulfuric acid.Kwimeko yokukhutshwa kwebhetri ye-lead-acid, inxalenye ephambili ye-electrode efanelekileyo i-lead dioxide, kunye neyona nto iphambili ye-electrode engafanelekanga ikhokela;kwimeko ehlawulweyo, amacandelo aphambili ee-electrode ezintle kunye ne-negative i-lead sulfate.

I-voltage ebizwa ngokuba yi-single-cell lead-acid ibhetri yi-2.0V, enokuthi ikhutshwe kwi-1.5V kwaye ingahlawuliswa kwi-2.4V.Kwizicelo, iibhetri ezi-6 ze-cell lead-acid zihlala zisetyenziselwa uchungechunge ukwenza ibhetri ye-lead-acid ye-12V.Kukho kwakhona 24V, 36V, 48V njalo njalo.

Yeyiphi ekhuselekileyo, ibhetri ye-lithium okanye ibhetri ye-lead-asidi?

Ngokombono wokhuseleko lokhuseleko lwebhetri, iivalve zokhuseleko ziyilwe kwiiseli ze-18650, ezingenako ukukhulula uxinzelelo lwangaphakathi olugqithisiweyo, kodwa kunye nokukhupha ibhetri ngokwasemzimbeni kwisekethe yangaphandle, elingana nokuhlukanisa iseli ngokwasemzimbeni ukuqinisekisa ukuba ukhuseleko. yezinye iiseli zebhetri kwipakethi yebhetri.Ukongezelela, iipakethi zebhetri ze-lithium zihlala zixhotyiswe ngeebhodi zokukhusela ze-BMS, ezinokuthi zilawule ngokuchanekileyo imeko yeseli nganye kwi-pack yebhetri, kwaye ixazulule ngokuthe ngqo ingxaki yokugqithiswa kunye nokukhutshwa kwingcambu.

Inkqubo yokulawula ibhetri ye-Lithium ibhetri ye-BMS inokubonelela ngokukhusela ngokupheleleyo kwibhetri, imisebenzi ibandakanya: intlawulo / ukukhupha ukhuseleko oluphezulu kunye nokushisa okuphantsi;ukutshaja kweseli enye / ukukhuselwa kombane ogqithisiweyo;ukuhlawulisa / ukukhupha ukhuseleko oludlulayo;ibhalansi yeseli;ukhuseleko lwesiphaluka esifutshane;Izikhumbuzo kunye nokunye.

I-electrolyte yeipakethe yebhetri ye-lithiumisisombululo esixubileyo setyuwa ye-lithium kunye ne-solvent ye-organic, apho i-lithium ityuwa ekhoyo ngokurhweba i-lithium hexafluorophosphate.Lo mbandela ulungele ukubola kwe-thermal kumaqondo aphezulu kwaye ufumana i-thermochemical reaction kunye nemilinganiselo yamanzi kunye ne-solvents ye-organic ukunciphisa ukuzinza kwe-Thermal ye-electrolyte.

Ibhetri ye-lithium yamandla isebenzisa i-lithium iron phosphate.I-PO bond kwi-lithium iron phosphate crystal izinzile kwaye inzima ukubola.Nokuba kubushushu obuphezulu okanye ngaphezulu, ayizukuwa kwaye ivelise ubushushu okanye yenze izinto ezinamandla ze-oxidizing njenge-lithium cobaltate.Ukhuseleko olulungileyo.Kuxelwe ukuba ekusebenzeni kwangempela, inani elincinci leesampuli zafunyanwa ukuba zitshise ngexesha lovavanyo lwe-acupuncture okanye lwe-short-circuit, kodwa akukho siganeko siqhumayo senzeke.Ukhuseleko lweebhetri ze-lithium ziphuculwe kakhulu.

Ngokwahlukileyo koko, iibhetri ezineasidi yelothe azinalo ukhuseleko lwenkqubo yeBMS.Iibhetri ze-lead-asidi zibonakala zisilela kukhuseleko lokhuseleko ngaphandle kweevalvu zokhuseleko.Ukhuseleko lwe-BMS luphantse lungabikho.Iitshaja ezininzi ezikumgangatho ophantsi azikwazi nokucima emva kokuba zitshajwe ngokupheleleyo.Ukukhuselwa kokhuseleko kukude kwiibhetri ze-lithium.Idityaniswa netshaja ekumgangatho ophantsi, kulungile ukuba ubekwimeko entle.

Ukudubula okuzenzekelayo kwizithuthi zombane kaninzi kwenzeka, uninzi lwazo lubangelwa ukutshaja kwebhetri kunye nokukhupha.Ezinye iingcali ziye zachaza ukuba iibhetri ze-lead-acid zithatha ixesha elide ukuhlawula, kwaye xa zihlawuliswa ukuya ekupheleni, emva kokuba izibonda ezimbini ziguqulwe zibe zizinto ezisebenzayo, ukuba ziqhubeka zihlawulisa, umbane omkhulu uya kuveliswa.I-Hydrogen, igesi ye-oxygen.Xa uxinaniso lwale gesi exutyiweyo lubalelwa kwi-4% emoyeni, kusemva kwexesha ukubaleka.Ukuba umngxuma wokukhupha uvaliwe okanye kukho igesi eninzi kakhulu, iya kuqhuma xa idibana nomlilo ovulekileyo.Iya konakalisa ibhetri ekukhanyeni, kwaye yenzakalise abantu kunye nomonakalo kwiimeko ezinzima.Oko kukuthi, xa ibhetri ye-lead-asidi itshajiswe ngokugqithisileyo, iya konyusa ithuba logqabhuko-dubulo.Okwangoku, iibhetri ze-lead-acid kwimarike ayenzanga nayiphi na "ukukhuselwa kwe-overcharge", eyenza iibhetri ze-lead-acid ekutshajini, ngokukodwa ekupheleni kokutshaja, ziyingozi kakhulu.

Ekugqibeleni, ukuba isakhiwo sebhetri sonakaliswe ngenxa yokungqubana ngengozi, iibhetri ze-lead-acid zibonakala zikhuselekile kuneebhetri ze-lithium.Nangona kunjalo, kule nqanaba lengozi, izinto zebhetri sele zibonakaliswe kwindawo evulekileyo, kwaye ukuqhuma akunakwenzeka ukuthetha.

Ukusuka kwiingozi zokhuseleko ezingasentla zeebhetri ze-lead-asidi kunye neebhetri ze-lithium iron phosphate, kunokubonwa ukuba eyona ngozi yokhuseleko enkulu yeebhetri ze-lead-acid ilele kwizixhobo zazo.Iielectrode zeebhetri ezineasidi yelothe ubukhulu becala zenziwe ngelothe neeoxides zayo, yaye i-electrolyte sisinyibiliko seasidi yesulfuric.Ukuzinza kwezi zinto zikhoyo azikho phezulu kakhulu.Ukuba ukuvuza okanye ukuqhuma kwengozi kwenzeka, umonakalo obangelwayo uya kuba phezulu kakhulu kuneebhetri ze-lithium.

Isishwankathelo:

Ukususela kumbono wokhuseleko lwebhetri kunye noyilo lwe-redundancy, iibhetri ze-lithium ezifanelekileyo kunye neebhetri ze-lead-acid zinokuqinisekisa ngokupheleleyo ukhuseleko lwabasebenzisi, kwaye akukho ntlukwano yokhuseleko olucacileyo.Ngaba ibhetri ye-lithium okanye ibhetri ye-asidi ekhokelayo ikhuselekile?Kweli nqanaba, ukhuseleko factor ofiibhetri ze-lithiumisephezulu.