TL;DR – Ozokufunda Ngemizuzwana engama-30:
• Indlela yokushaja ye-lithium-ion ejwayelekile i-CC-CV (I-Constant Current-Constant Voltage).
• Isigaba se-CC sihlinzeka ngokushaja okusheshayo (umthamo ongafika ku-60-80%), isigaba se-CV siqinisekisa ukufakwa okuphephile futhi sivikela impilo yebhethri.
• Izinga lokushisa eleqile (ngaphansi kuka-0°C noma ngaphezulu kuka-45°C) liyingozi ekushajeni.
• Ozinikele I-Battery Management System (BMS) ibalulekile ku-voltage enembile kanye nokulawulwa kwamanje.
Ukushaja kwakho ibhethri le-lithium-ion kungenye yezinto ezibaluleke kakhulu ezinquma ubude bayo bempilo, ukusebenza, nokuphepha. Nakuba kungase kubonakale njengokusebenza okujwayelekile, inqubo yokushaja i-lithium-ion ihlukile kubuchwepheshe bebhethri obudala njenge-lead-acid noma i-NiMH. Ukulandela izinqubo ezihamba phambili kuyisihluthulelo sokuvimbela ukungasebenzi kahle nokukhulisa i-ROI.
Kungani Inqubo Yokushaja I-Lithium-Ion Ihlukile
Ngokungafani namabhethri e-lead-acid, amaseli e-lithium-ion awakwazi ukubekezelela ukushajwa ngokweqile. Zidinga amandla okushaja alawulwa ngokunembile kanye ne-voltage ukuze kuqinisekiswe ama-ion e-lithium angena ngokuphephile ezendlalelo zegraphite ze-anode. Indlela ejwayelekile, eyamukelwa yimboni yokushaja i-lithium-ion ephelele nephephile i-algorithm ye-CC-CV (Constant Current-Constant Voltage). A eqinile I-Battery Management System (BMS) ibalulekile ekusebenziseni le-algorithm ngendlela efanele.
Isigaba 1: I-Constant Current (CC) – Isigaba Sokushaja Ngokushesha
Phakathi nesigaba samanje esingaguquki, ishaja ihlinzeka ngogesi ozinzile, onqunywe kusengaphambili.
• Izici : I-voltage ikhuphuka kancane ngenkathi yamanje ihlala ingashintshi.
• Amandla Azuziwe : Ibhethri le-Li-ion lingafinyelela ku-60% kuya ku-80% womthamo walo usuwonke phakathi nalesi sigaba.
• I-C-Rate : Amandla wokushaja afanelekile ngokuvamile aqala phakathi kuka-0.2C no-1.0C. Kuseli engu-2000mAh, isilinganiso esingu-0.5C sizoba ngu-1000mA.
• I-Transition Point : Isigaba se-CC siyaqhubeka kuze kube yilapho amandla kagesi eseli afinyelela umkhawulo wawo omkhulu, ngokuvamile azungeze u-4.2V ngeseli.
Isiteji sesi-2: I-Voltage Eqhubekayo (CV) - I-Protective Topping-Off
Uma i-threshold engu-4.2V isifinyelelwe, ishaja ishintshela kumodi kagesi engashintshi.
• Izici : Ishaja ibamba i-voltage inganyakazi ngenkathi yamanje incipha kancane.
• Kungani Kudingeka : Ngaphandle kwalesi sigaba se-CV, i-current izoqhubeka iphusha ama-ion, ibangele i-lithium eyinsimbi icwebezele ku-anode, imbangela eyinhloko yokubaleka okushisayo.
• Ukunqanyulwa : Umjikelezo wokushaja we-lithium-ion uyaqeda, noma uyanqamula, lapho ukushaja kwamanje kwehlela ezingeni eliphansi 'lokuphela kweshaji', ngokuvamile eliphakathi kuka-0.02C no-0.07C.
Imikhuba Engcono Kakhulu kanye
Nokuphathwa Kwe-BMS Monitoring Ukushaja akwenzeki endaweni engenalutho. Kuzinhlelo zokusebenza zomhlaba wangempela njengezikhungo zedatha noma iziteshi ze-telecom, okuqinile
I-Battery Management System (BMS) ibalulekile.
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Ukuqapha Izinga lokushisa : Ukushaja kufanele kwenzeke phakathi kuka-0°C no-45°C.
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Ukukhetha Ishaja : Njalo sebenzisa ishaja eklanyelwe ikhemikhali ye-Li-ion elandela iphrofayela ye-CC-CV efanele.
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Ukunemba Kwe-Voltage : Ikhwalithi ye-BMS iqinisekisa ukuthi iseli ngalinye lifinyelela ugesi ophelele, ikhulisa umthamo wawo wonke umjikelezo wokushaja.
Izicelo Zomhlaba Wangempela Ezisemandleni Abalulekile
Izimiso zokushaja okuphephile nokusebenzayo kwe-lithium-ion akuyona nje imfundo; ziyisisekelo ezinhlelweni zesimanje zokusekela amandla. Ngaphakathi kwe-UPS, amabhethri e-lithium anikeza ukuminyana okukhulu kwamandla ukuze uthole amandla ayisipele ahlangene. Ukunemba kwendlela ye-CC-CV ibalulekile ekuthembekeni. Ukwengeza, ukusetshenziswa okukhulayo kwamandla elanga kanye ne-Battery Energy Storage Systems (BESS) kuncike ku-algorithms yokushaja eyindida ukuze kukhuliswe ubude bempilo bokuhlanganisa amandla avuselelekayo nesitoreji sebhethri.
Ngezinhlelo zokusebenza ezibaluleke kakhulu kumgomo, i-DFUN inikeza okuthuthukile izixazululo zebhethri le-lithium-ion ezidizayinelwe ukusebenza ngaphandle komthungo nenkundla yethu ye-BMS, iqinisekisa ukusebenza kahle kokushaja, ukuphila komjikelezo owandisiwe, nokuphepha okuthuthukisiwe.
