Isingeniso:
Ama-chips ahlobene namandla abelokhu eyisigaba semikhiqizo ethole ukunakwa okukhulu. Ama-chips okuvikela ibhethri awuhlobo lwama-chips ahlobene namandla asetshenziselwa ukuthola izimo zephutha ezahlukahlukene kumabhethri eseli elilodwa kanye namaseli amaningi. Ezinhlelweni zebhethri zanamuhla, izici zamabhethri e-lithium-ion zifaneleka kakhulu kumasistimu kagesi aphathwayo, kodwaamabhethri e-lithiumisidingo sokusebenza ngaphakathi kwemikhawulo elinganiselwe, egxile ekusebenzeni nokuphepha. Ngakho-ke, ukuvikelwa kwamaphakethe ebhethri ye-lithium-ion kuyadingeka futhi kubalulekile. Ukusetshenziswa kwemisebenzi ehlukahlukene yokuvikela ibhethri ukugwema ukwenzeka kwezimo zephutha ezifana nokukhipha i-OCD yamanje kanye nokushisa ngokweqile kwe-OT, kanye nokuthuthukisa ukuphepha kwamaphakethe ebhethri.
Isistimu yokuphatha ibhethri yethula ubuchwepheshe bokulinganisa
Okokuqala, ake sikhulume ngenkinga evame kakhulu yamaphakethe ebhethri, ukungaguquguquki. Ngemuva kokuthi amaseli awodwa enze iphakethe lebhethri le-lithium, ukubaleka okushisayo kanye nezimo ezihlukahlukene zamaphutha kungenzeka. Lena inkinga ebangelwa ukungahambisani kwephakethe lebhethri le-lithium. Amaseli awodwa akha iphakethe lebhethri le-lithium awahambisani nomthamo, ukushaja, kanye nemingcele yokukhipha, futhi "umphumela womgqomo" ubangela amaseli awodwa anezakhiwo ezimbi kakhulu ukuthi athinte ukusebenza okuphelele kwalo lonke iphakethe lebhethri le-lithium.
ubuchwepheshe bokulinganisa ibhethri ye-lithium bonwa njengendlela engcono kakhulu yokuxazulula ukungaguquguquki kwamaphakethe ebhethri ye-lithium. Ukulinganisa kuwukulungisa amandla kagesi esikhathi sangempela wamabhethri wamandla ahlukene ngokulungisa ibhalansi yamanje. Lapho ikhono lokulinganisa liqina, linamandla namandla okucindezela ukunwetshwa komehluko we-voltage nokuvimbela ukubaleka kwe-thermal, futhi kuba ngcono ukuzivumelanisa nezimoiphakethe lebhethri le-lithium.
Lokhu kwehlukile kusivikeli esilula esisekelwe kwihadiwe. Isivikeli sebhethri ye-lithium singaba isivikelo se-overvoltage esiyisisekelo noma isivikeli esithuthukisiwe esingasabela ekungabini kwamandla kagesi, iphutha lokushisa noma iphutha lamanje. Ngokuvamile, i-IC yokuphatha ibhethri ezingeni le-lithium battery qapha kanye ne-fuel gauge inganikeza umsebenzi wokulinganisa ibhethri ye-lithium. Imonitha yebhethri ye-lithium inikeza umsebenzi wokulinganisa ibhethri ye-lithium futhi ihlanganisa nomsebenzi wokuvikela we-IC onokulungiseka okuphezulu. I-fuel gauge inezinga eliphezulu lokuhlanganiswa, okuhlanganisa umsebenzi we-lithium battery monitor, futhi ihlanganisa ama-algorithms okuqapha okuthuthukisiwe ngesisekelo sayo.
Kodwa-ke, amanye ama-IC okuvikela ibhethri ye-lithium manje ahlanganisa nemisebenzi yokulinganisa ibhethri ye-lithium ngokusebenzisa ama-FET ahlanganisiwe, angakhipha ngokuzenzakalela amabhethri agcwele amandla kagesi aphelele ngesikhathi sokushaja futhi agcine amabhethri ane-voltage ephansi ochungechungeni eshajwe, ngaleyo ndlela kulinganisa ibhethri.iphakethe lebhethri le-lithium. Ngokungeziwe ekusebenziseni isethi egcwele yamandla kagesi, imisebenzi yamanje kanye nokuvikela izinga lokushisa, ama-IC okuvikela ibhethri nawo aqala ukwethula imisebenzi yokulinganisa ukuze ahlangabezane nezidingo zokuvikela zamabhethri amaningi.
Kusukela ekuvikelweni okuyisisekelo kuya ekuvikelweni kwesibili
Kusukela ekuvikelweni okuyisisekelo kuya ekuvikelweni kwesibili
Isivikelo esiyisisekelo kakhulu ukuvikela i-overvoltage. Wonke ama-IC okuvikela ibhethri le-lithium ahlinzeka ngokuvikelwa kwe-overvoltage ngokuya ngamazinga ahlukene wokuvikela. Ngalesi sisekelo, ezinye zihlinzeka ngokuvikelwa kwe-overvoltage kanye nokukhishwa kwe-overcurrent, kanti ezinye zihlinzeka ngokugcwala ngokweqile kanye nokuvikelwa kokukhishwa kwe-overcurrent kanye nokuvikela ukushisa ngokweqile. Kwamanye amaphakethe ebhethri e-lithium aneseli eliphezulu, lesi sivikelo asisanele ukuhlangabezana nezidingo zephakethe lebhethri le-lithium. Ngalesi sikhathi, i-IC yokuvikela ibhethri ye-lithium enomsebenzi wokulinganisa ozimele webhethri le-lithium iyadingeka.
Le IC yokuvikela ingeyokuvikela okuyinhloko, okulawula ukukhokhiswa nokukhipha ama-FET ukuphendula ezinhlotsheni ezihlukene zokuvikela amaphutha. Lokhu kulinganisa kungase kuxazulule inkinga ye-thermal runaway of theiphakethe lebhethri le-lithiumngiyaphila. Ukunqwabelana kokushisa okudlulele ebhethrini elilodwa le-lithium kuzodala umonakalo kuswishi yebhalansi yephakethe lebhethri le-lithium kanye nezimbangi. ukulinganisa kwebhethri ye-lithium kuvumela ibhethri ngalinye le-lithium elinganasici kuphakethe lebhethri le-lithium ukuthi lilinganisele kumthamo ohlobene namanye amabhethri angasebenzi, kunciphisa ubungozi bokubaleka okushisayo.
Njengamanje, kunezindlela ezimbili zokufinyelela ukulinganisa kwebhethri ye-lithium: ukulinganisa okusebenzayo kanye nokulinganisa kokungenzi lutho. Ukulinganisa okusebenzayo ukudlulisa amandla noma ukushaja ukusuka kumabhethri anamandla kagesi aphezulu/aphezulu-SOC kuya kumabhethri ane-SOC ephansi. I-Passive balancing iwukusebenzisa izinto eziphikisayo ukusebenzisa amandla amabhethri anamandla kagesi noma ashajwa kakhulu ukuze kuzuzwe injongo yokunciphisa igebe phakathi kwamabhethri ahlukene. Ukulinganisa okwenziwayo kunokulahlekelwa amandla aphezulu kanye nengozi yokushisa. Uma kuqhathaniswa, ukulinganisa okusebenzayo kusebenza kakhulu, kodwa i-algorithm yokulawula inzima kakhulu.
Kusukela ekuvikelweni okuyisisekelo kuya ekuvikelweni kwesibili, isistimu yebhethri ye-lithium idinga ukuhlonywa ngemonitha yebhethri ye-lithium noma igeji kaphethiloli ukuze kuzuzwe ukuvikeleka kwesibili. Nakuba ukuvikela okuyinhloko kungasebenzisa ama-algorithms ahlakaniphile okulinganisa ibhethri ngaphandle kokulawula kwe-MCU, ukuvikela kwesibili kudinga ukudlulisa ugesi webhethri we-lithium kanye nokwamanje ku-MCU ukuze kuthathwe izinqumo ezingeni lesistimu. iziqaphi zebhethri ze-lithium noma izikali zikaphethiloli zinemisebenzi yokulinganisa ibhethri.
Isiphetho
Ngaphandle kweziqapha zebhethri noma izikali zikaphethiloli ezihlinzeka ngemisebenzi yokulinganisa ibhethri, ama-IC okuvikela ahlinzeka ngokuvikeleka okuyinhloko awasakhawulelwe ekuvikelweni okuyisisekelo okufana nokugcwala ngokweqile. Ngokusetshenziswa okwandayo kwamaseli amaningiamabhethri e-lithium, amaphakethe ebhethri anomthamo omkhulu azoba nezidingo eziphakeme neziphakeme zokuvikela ama-IC, futhi ukwethulwa kwemisebenzi yokulinganisa kuyadingeka kakhulu.
Ukulinganisa kufana nohlobo lwesondlo. Ukushajwa ngakunye nokukhishwa kuzoba nenani elincane lesinxephezelo sokulinganisa ukulinganisa umehluko phakathi kwamabhethri. Kodwa-ke, uma iseli yebhethri noma iphakethe lebhethri ngokwalo lineziphambeko zekhwalithi, ukuvikeleka nokulinganisa akukwazi ukuthuthukisa ikhwalithi yephakethe lebhethri, futhi akuwona ukhiye wendawo yonke.
Uma unemibuzo noma ungathanda ukufunda okwengeziwe, sicela ungangabazifinyelela kithi.
Isicelo sokucaphuna:
U-Jacqueline:jacqueline@heltec-bms.com/ +86 185 8375 6538
Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
U-Nancy:nancy@heltec-bms.com/ +86 184 8223 7713
Isikhathi sokuthumela: Oct-21-2024