Uhlelo Lokuphatha Ibhethri (BMS)idlala indima ebalulekile ekuqinisekiseni ukusebenza okuphephile nokusebenza kahle kwamabhethri e-lithium-ion, okuhlanganisa i-LFP namabhethri e-ternary lithium (NCM/NCA). Inhloso yayo eyinhloko ukuqapha nokulawula amapharamitha ebhethri ahlukahlukene, afana ne-voltage, izinga lokushisa, namanje, ukuze kuqinisekiswe ukuthi ibhethri lisebenza ngaphakathi kwemikhawulo ephephile. I-BMS iphinde ivikele ibhethri ekushajweni ngokweqile, ekukhishweni ngokweqile, noma ekusebenzeni ngaphandle kwebanga elifanele lokushisa. Kumaphakethe ebhethri anochungechunge oluningi lwamaseli (izintambo zebhethri), i-BMS ilawula ukulinganisa kwamaseli ngamanye. Uma i-BMS ihluleka, ibhethri lishiywa lisengozini, futhi imiphumela ingaba mibi kakhulu.
1. Ukushaja ngokweqile noma ukushajwa ngokweqile
Omunye wemisebenzi ebaluleke kakhulu ye-BMSis ukuvimbela ibhethri ukuthi lishajwe ngokweqile noma lingashajwa kakhulu. Ukushajwa ngokweqile kuyingozi ikakhulukazi kumabhethri anamandla amakhulu njenge-ternary lithium (NCM/NCA) ngenxa yokuba sengozini yawo ekubalekeni okushisayo. Lokhu kwenzeka lapho amandla kagesi ebhethri edlula imikhawulo ephephile, okukhiqiza ukushisa okudlulele, okungaholela ekuqhumeni noma kumlilo. Ukukhipha ngokweqile, ngakolunye uhlangothi, kungabangela ukulimala okungapheli kumaseli, ikakhulukazi ku-Amabhethri e-LFP, engalahlekelwa amandla futhi ibonise ukusebenza okungalungile ngemva kokukhishwa okujulile. Kuzo zombili izinhlobo, ukwehluleka kwe-BMS ukulawula i-voltage ngesikhathi sokushaja nokukhipha kungase kubangele umonakalo ongenakulungiseka ephaketheni lebhethri.
2. Ukushisa ngokweqile kanye nokubaleka kwe-Thermal
Amabhethri e-lithium e-Ternary (NCM/NCA) azwela kakhulu amazinga okushisa aphezulu, ngaphezu kwamabhethri e-LFP, aziwa ngokuzinza okungcono kwe-thermal. Nokho, zombili izinhlobo zidinga ukuphathwa ngokucophelela kwezinga lokushisa. I-BMS esebenzayo iqapha izinga lokushisa lebhethri, iqinisekise ukuthi lihlala phakathi kwebanga eliphephile. Uma i-BMS ihluleka, ukushisa ngokweqile kungase kwenzeke, kubangele ukusabela okuyingozi okubizwa ngokuthi i-thermal runaway. Ephaketheni lebhethri elakhiwe uchungechunge oluningi lwamaseli (izintambo zebhethri), ukubaleka okushisayo kungasakazeka ngokushesha kusuka kuseli kuya kwelinye, okuholela ekwehlulekeni okuyinhlekelele. Ezisetshenziswa ezinamandla njengezimoto zikagesi, le ngozi iyakhuliswa ngoba ukuminyana kwamandla nokubalwa kwamaseli kuphezulu kakhulu, okwandisa amathuba okuba nemiphumela emibi kakhulu.
3. Ukungalingani Phakathi Kwamaseli Ebhethri
Kumaphakethe ebhethri anamaseli amaningi, ikakhulukazi lawo anamandla kagesi aphezulu njengezimoto zikagesi, ukulinganisa amandla kagesi phakathi kwamaseli kubalulekile. I-BMS inesibopho sokuqinisekisa ukuthi wonke amaseli ephaketheni abhalansile. Uma i-BMS ihluleka, amanye amaseli angase ashajwe ngokweqile kuyilapho amanye ehlala eshajiwe. Kumasistimu anezintambo eziningi zebhethri, lokhu kungalingani akunciphisi ukusebenza kahle nje kuphela kodwa futhi kubangela ingozi yokuphepha. Amaseli akhokhiswe ngokweqile ikakhulukazi asengozini yokushisa ngokweqile, okungawenza ehluleke ngendlela eyinhlekelele.
4. Ukwehluleka Kwamandla noma Ukunciphisa Ukusebenza Ngekhono
I-BMS ehlulekile ingaholela ekwehliseni ukusebenza kahle noma ngisho nokuphelelwa amandla ngokuphelele. Ngaphandle kokuphathwa kahle kwamandla kagesi, izinga lokushisa, nokulinganisa kwamaseli, isistimu ingase ivalwe ukuze ivimbele ukulimala okwengeziwe. Kuzinhlelo zokusebenza lapho izintambo zebhethri ezinamandla amakhulu zibandakanyeka, njengezimoto zikagesi noma indawo yokugcina amandla embonini, lokhu kungaholela ekulahlekeni kwamandla kungazelelwe, kudale izingozi ezinkulu zokuphepha. Isibonelo, iphakethe lebhethri le-lithium le-ternary lingase livale kungazelelwe ngenkathi imoto kagesi ihamba, idale izimo zokushayela eziyingozi.
Isikhathi sokuthumela: Sep-23-2024
