Isingeniso:
Amabhethri e-lithium akhona yonke indawo ezimpilweni zethu. Amabhethri ethu omakhalekhukhwini namabhethri emoto kagesi konkeamabhethri e-lithium, kodwa ingabe uyawazi amagama athile ebhethri ayisisekelo, izinhlobo zebhethri, kanye nendima nomahluko wochungechunge lwebhethri noxhumo oluhambisanayo? Ake sihlole ulwazi lwamabhethri nge-Heltec.
Amagama ayisisekelo amabhethri e-lithium
1) Isilinganiso se-C
Isho isilinganiso samanje kumthamo webhethri we-lithium ngesikhathi sokushaja nokukhipha. Ichaza ukuthi ibhethri ingashajwa futhi ishajwe ngokushesha kangakanani. Amanani okushaja nokukhipha awafani ngempela. Ngokwesibonelo:
I-1C: khipha ibhethri ngokugcwele phakathi nehora elingu-1 (ishaji eligcwele)
0.2C: khipha ibhethri ngokugcwele emahoreni angu-5 (ukushaja okugcwele)
I-5C: khipha ibhethri ngokugcwele kungakapheli amahora angu-0.2 (ukushaja okugcwele)
2) Amandla
Inani likagesi eligcinwe kuibhethri ye-lithium. Iyunithi yi-mAh noma i-Ah.
Kuhlanganiswe nesilinganiso, isibonelo, uma ibhethri ingu-4800mAh futhi izinga lokushaja lingu-0.2C, kusho ukuthi kuthatha amahora angu-5 ukuze ibhethri ishajwe ngokugcwele kusukela ekungenalutho (ukunganaki isigaba sokushajwa kwangaphambili lapho ibhethri liphansi kakhulu).
Amanje ukushaja: 4800mA*0.2C=0.96A
3) Uhlelo lokuphatha ibhethri le-BMS
Isistimu ilawula futhi ilawule ukushajwa/ukuchithwa kwebhethri, ithola izinga lokushisa ne-voltage yebhethri, ixhuma nesistimu yomsingathi, ibhalansisa i-voltage yebhethri, futhi ilawula ukusebenza kokuphepha kwephakethe lebhethri le-lithium.
4) Umjikelezo
Inqubo yokushajwa nokukhipha ibhethri ibizwa ngokuthi umjikelezo. Uma ibhethri isebenzisa kuphela u-80% wawo wonke amandla isikhathi ngasinye, impilo yomjikelezo wamabhethri e-lithium-ion ingaba phezulu njengezinkulungwane zezikhathi.
Uhlobo Lwebhethri ye-Lithium
Njengamanje, amaseli e-lithium-ion okuhweba ikakhulukazi ayi-cylindrical, isikwele kanye ne-soft-pack.
Amaseli angama-cylindrical angu-18650 angamaseli e-lithium-ion anevolumu yokukhiqiza ephezulu kakhulu okwamanje. Amaseli ebhethri ethu ochungechunge lwe-G angalolu hlobo.
Uchungechunge lwamaseli noxhumano oluhambisanayo
Iseli liyingxenye eyinhloko ye-ibhethri ye-lithium. Inani lamaseli liyahlukahluka kuye ngokuthi ibhethri lisebenza kanjani, kodwa wonke amabhethri adinga ukuxhunywa ngezindlela ezahlukene ukuze kuzuzwe amandla kagesi adingekayo.
Qaphela: Izimo zokuxhumanisa okufanayo zinzima kakhulu. Ngakho-ke, ukuxhumana okuhambisanayo kuqala bese emva kwalokho ukuxhumeka kochungechunge kunganciphisa izidingo zokungaguquguquki kwebhethri.
Q: Uyini umehluko phakathi kwamabhethri ochungechunge oluthathu kanye ne-four-parallel kanye ne-four-parallel kanye nochungechunge oluthathu?
A: I-voltage namandla ahlukene.Ukuxhumeka kochungechunge kukhulisa i-voltage, futhi ukuxhumana okuhambisanayo kukhulisa okwamanje (amandla)
1) Ukuxhumana okufanayo
Cabanga ukuthi i-voltage yeseli yebhethri ingu-3.7V futhi umthamo ngu-2.4Ah. Ngemuva kokuxhumeka okuhambisanayo, i-voltage yokugcina yesistimu isengu-3.7V, kodwa amandla akhuphuka abe ngu-7.2Ah.
2) Ukuxhumana kochungechunge
Cabanga ukuthi i-voltage yeseli yebhethri ingu-3.7V futhi umthamo ngu-2.4Ah. Ngemuva kokuxhumeka kochungechunge, i-voltage yokugcina yesistimu ingu-11.1V, futhi umthamo uhlala ungashintshiwe.
Uma iseli yebhethri inguchungechunge oluthathu kanye nokubili okuhambisanayo, ingqikithi yamaseli angu-6 18650, khona-ke ibhethri lingu-11.1V no-4.8Ah. I-Tesla Model-S sedan isebenzisa amaseli e-Panasonic 18650, futhi iphakethe lebhethri elingu-85kWh lidinga amaseli angaba ngu-7,000.
Isiphetho
I-Heltec izoqhubeka nokubuyekeza ulwazi lwesayensi oludumile mayelanaamabhethri e-lithium. Uma unesithakazelo, ungakwazi ukunaka kuso. Ngesikhathi esifanayo, sikuhlinzeka ngamaphakethe ebhethri e-lithium ekhwalithi ephezulu ukuze uwathenge futhi unikeze izinsizakalo ezenziwe ngokwezifiso ukuze uhlangabezane nezidingo zakho.
I-Heltec Energy inguzakwethu omethembayo ekukhiqizeni amaphakethe ebhethri. Ngokugxila kwethu ngokungaphezi ocwaningweni nasekuthuthukisweni, kuhambisana nohlu lwethu olubanzi lwezinsiza zebhethri, sinikeza izixazululo zokuma okukodwa ukuze sihlangabezane nezidingo eziguqukayo zomkhakha. Ukuzibophezela kwethu ekwenzeni okuhle, izixazululo eziklanyelwe, kanye nokusebenzisana okuqinile kwamakhasimende kusenza sibe yinketho kubakhiqizi baphakethe lebhethri nabahlinzeki emhlabeni jikelele.
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-18-2024