Ungabala kanjani isikhathi sokuqalisa ibhethri Lapho ubala isikhathi sokusebenza kwebhethri le-lithium-ion, kudingeka kubhekwe izinto eziningana:

Umthamo webhethri (ah): Umthamo webhethri ukhombisa inani lebhethri elingakwazi ukugcina futhi ngokuvamile lilinganiswa kuma-ampere-amahora (ah).Okukhulu umthamo, kutheshwa kakhulu izitolo zebhethri futhi zingasekela isikhathi eside.

Ukusetshenziswa kwamanje (a): Ukusetshenziswa kwamanje kukhombisa inani likagesi elidliwe ibhethri ngehora ngesikhathi sokusetshenziswa.Ukusetshenziswa okuqondile okuqondile kungalinganiswa kususelwa emandleni edivayisi.

Ukujula kokukhululwa (dod): Ukujula kokukhululwa kukhombisa isilinganiso senani elikhishwe ebhethri liye kwelinye amandla.Lapho kukhula i-DOD, i.e.Ngakho-ke ukuze wandise impilo yebhethri, i-DOD yamabhethri e-lithium-ion ngokuvamile azosethwa cishe kuma-80%.

Lokhu okulandelayo kuyisibonelo esilula sokubala isikhathi sokusebenza kwebhethri le-lithium-ion:

Ake sithi kunebhethri le-Li-ion elinomthamo we-3000mah (3Ah) nedivayisi edonsela ama-500mA (0.5a) ngesikhathi sokusebenzisa.Ukuthatha umkhawulo we-DOD ka-80%, manje ake sibala ukuthi ibhethri lingagijima isikhathi esingakanani.

Okokuqala, kudingeka sibala isikhathi sokusetshenziswa kwebhethri (emahoreni).Isikhathi sokusetshenziswa singabalwa ngefomula elandelayo:

Umthamo osebenzisekayo = umthamo webhethri (ah) × dod dod

Isikhathi sokuqalisa = umthamo osebenzisekayo (ah) * Ukusetshenziswa kwe-DOD / kwamanje (a)

Isikhathi sokuqalisa = 3h * 80% / 0.5a = amahora angu-4,8

Lokhu kusho ukuthi ibhethri le-li-ion elinomthamo we-3AH lingasekela amahora angama-4,8 isikhathi sokugijima ngaphansi kwezimo ezinhle ezisebenzisa idivaysi enayo yamanje nge-0.5a.

Uma ungazi kuphela i-wattage, uzobona ukuthi amadivayisi amaningi asebenzisa i-wattage ukuthola ukucaciswa kwawo okuyinhloko.I-wattage ingatholwa imininingwane yedivayisi noma ilebula.

5w isibani esikhanyayo

20w nge-laptop

I-100W motor

I-200W solar Street Light

Guqula kuze kube manje: Guqula amandla wedivayisi ukuze usebenzise ifomula elandelayo:
Okwamanje (a) = Amandla (W) / Ibhethri Votage (V)

I-Voltage ejwayelekile yebhethri le-Li-Ion elijwayelekile livame ukuba yi-12v, 24V, 36V, 48V, njll. Lapha sicabanga ukuthi sisebenzisa i-36V-20h ukuthola idivaysi engu-1000W, khona-ke isikhathi sokugijima sibalwa ngale ndlela elandelayo:

Isikhathi sokuqalisa = 20h * 80% / (1000w / 36v) = amahora angama-0.576

Usadidekile?Ngemuva kwalokho ake sithathe esinye isibonelo.

Ake sithi kukhona i-e-bike efakwe ibhethri le-36v-10h lion kanye nemoto kulinganiswe ngo-250 W. Sizobala isikhathi esilindelekile se-e-bike ngaphansi kwezimo ezihlukile.

Bala ukusetshenziswa kwamanje:
Okwamanje (a) = amandla (W) / VOLTAGE (V)
Okwamanje = 250W / 36V ≈ 6.94A

Bala umthamo otholakalayo:
Umthamo Otholakalayo = Umkhawulo webhethri
Ukuthatha umkhawulo we-80% DOD umkhawulo, umthamo otholakalayo = 10h × 0.8 = 8h

Bala isikhathi sokuqalisa:
Isikhathi sokuqalisa (amahora) = umthamo osebenzisekayo (ah) / a wamanje (a)
Isikhathi sokuqalisa ≈ 8AH / 6.94A ≈ 1.15 amahora ≈ imizuzu engama-69

Ngakho-ke, ngokuya ngokulinganisa okungenhla, ibhethri le-36V-10h le-li-ion lingasekela ibhayisekili kagesi cishe imizuzu engama-69 emandleni alinganiselwe ka-250w.