Amabhethri e-lithium aseyingxenye ebalulekile yesistimu entsha yamandla, enika amandla yonke into kusukela ezimotweni zikagesi nasezindaweni zokugcina amandla kuya kuma-elekthronikhi aphathwayo. Noma kunjalo, inselelo evamile ebhekene nabasebenzisi emhlabeni wonke umthelela omkhulu wokushisa ekusebenzeni kwebhethri—ihlobo livame ukuletha izinkinga ezifana nokuvuvukala nokuvuza kwebhethri, kuyilapho ubusika buholela ekunciphiseni okukhulu kwebanga kanye nokusebenza kahle kokushaja okungekuhle. Lokhu kusekelwe ekuzweleni okuvamile kokushisa kwamabhethri e-lithium, kanye namabhethri e-lithium iron phosphate, enye yezinhlobo ezisetshenziswa kakhulu, enza kahle phakathi kuka-0°C no-40°C. Ngaphakathi kwalolu hlu, ukusabela kwamakhemikhali angaphakathi kanye nokufuduka kwama-ion kusebenza kahle kakhulu, kuqinisekisa ukukhishwa kwamandla okuphezulu.
Izinga lokushisa elingaphandle kwaleli fasitela eliphephile libeka izingozi ezinkulu kumabhethri e-lithium. Ezindaweni ezinokushisa okuphezulu, ukuguquguquka kwe-electrolyte kanye nokubola kuyashesha, kwehlisa ukuhanjiswa kwe-ion futhi kukhiqize igesi engabangela ukuvuvukala noma ukuqhekeka kwebhethri. Ngaphezu kwalokho, ukuzinza kwesakhiwo sezinto ze-electrode kuyawohloka, okuholela ekulahlekelweni kwamandla okungenakuguqulwa. Okubaluleke kakhulu, ukushisa okweqile kungabangela ukuqhuma kokushisa, ukusabela kweketanga okungase kuholele ezigamekweni zokuphepha, okuyimbangela enkulu yokungasebenzi kahle kwamadivayisi amasha amandla. Izinga lokushisa eliphansi liyinkinga efanayo: ukwanda kwe-electrolyte viscosity kunciphisa ukufuduka kwe-lithium ion, kuphakamisa ukumelana kwangaphakathi futhi kunciphisa ukusebenza kahle kokukhipha ishaja. Ukushaja okuphoqelelwe ezimweni ezibandayo kungabangela ukuthi ama-ion e-lithium afike ebusweni be-electrode obungebuhle, kwakha ama-dendrites e-lithium abhoboza isihlukanisi futhi abangele izifunda ezimfushane zangaphakathi, okubeka izingozi ezinkulu zokuphepha.
Ukuze kuncishiswe lezi zingozi ezibangelwa ukushisa, i-Lithium Battery Protection Board, eyaziwa kakhulu ngokuthi i-BMS (Uhlelo Lokuphatha Ibhethri), ibalulekile. Imikhiqizo ye-BMS esezingeni eliphezulu ifakwe izinzwa zokushisa ze-NTC ezinembile kakhulu eziqapha ukushisa kwebhethri njalo. Lapho amazinga okushisa edlula imikhawulo ephephile, uhlelo luqala i-alamu; ezimweni zokushisa okusheshayo, luqala ngokushesha izinyathelo zokuvikela ukuze lunqamule isekethe, luvimbele umonakalo owengeziwe. I-BMS ethuthukisiwe enomqondo wokulawula ukushisa okushisa okuphansi ingadala nezimo zokusebenza ezifanele kakhulu zamabhethri ezindaweni ezibandayo, ibhekane ngempumelelo nezinkinga ezifana nobubanzi obuncishisiwe kanye nobunzima bokushaja, iqinisekise ukusebenza okuzinzile kuzo zonke izimo zokushisa ezahlukahlukene.
Njengengxenye eyinhloko yesistimu yokuphepha kwebhethri le-lithium, i-BMS esebenza kahle ayigcini nje ngokuvikela ukuphepha kokusebenza kodwa futhi yandisa isikhathi sokuphila kwebhethri, ihlinzeka ngokusekelwa okubalulekile ekusebenzeni okuthembekile kwemishini yamandla emisha.
Isikhathi sokuthunyelwe: Okthoba-23-2025
