Baarakɛnafolo ye mun ye?

O ye funteni-yɔrɔ ye min na litiyamu-ion pake bɛ sɔn tiɲɛ na ka charge ani ka bɔ ka sɔrɔ BMS ma kɛ ni tantrum filili ye walima seliw bɛ yɛrɛfaga kɛ ni dususuma ye. I bɛ jateden minnu ye kunmabɔnafolo fanba kan-Jatew 18650/21700 (Discharge –20℃to 60℃, charge 0℃to 45℃) olu tɛ nkalon ye, nka u ye "marketing safe" jatew ye. Ɲɛnamaya lakika ye ɲagami ye.

N ye fanga fununen caman fara ɲɔgɔn kan-tool packs ani frozen e-bike batiriw k’a dɔn: Datasheet ye teori ye, kaburu ye wale ye.

marali funteni ye min ye seli bɛ se ka kisi ka sɔrɔ ka foyi kɛ abada. Aw bɛ se ka NMC selilɛri ɲuman to –40 degɛrɛ la san kelen kɔnɔ ani a bɛna ɲɛ hali bi n’aw y’a sumaya. Baara funteni ye ni kuran bɛ ka woyo. O waati de la, chimie ka kan ka kɛ tiɲɛ na jeli kɔnɔ, wa chimie ye diva ye funteni kan.

Aw bɛ charge kɛ ka tɛmɛ 0℃kan ani aw bɛ lithium metal plating anode - irreversible, capacity{2}}faga, ani tuma dɔw la stabby ni dendrites falenna. Discharge à –30℃? Seli tɛna sa, a bɛ sulk dɔrɔn: voltage sags i n'a fɔ crazy, internal resistance triples, ani i bɛ se ka 60–70 % sɔrɔ se hakɛ la. Aw bɛ a sumaya ka segin san fɛ ani a bɛ nisɔndiya tugun. Tiɲɛni banbali si tɛ yen.

99 % ka bɔ kunmabɔnafolo selilɛriw la: 0 degɛrɛ 0 ka se 45 ma , tuma dɔw la 0–60 degɛrɛ ni a dilannikɛla bɛ jagɛlɛya sɔrɔ. Fɛn o fɛn ka nɛnɛ → litiyɔmu plati. BMS ɲuman bɛɛ bɛ charge current tigɛ ka se zero ma basigi 0–2℃. Sinuwaw ka scooter pake dɔw tɛ, o de y’a to i bɛ puffed caman ye-up batiriw Harbin parkingw kɔnɔ kaban.

Danfara bɛ yen, tiɲɛ don:

Saft dɔw, tadiran, walima aerospace custom cellules ni funky electrolytes bɛ se ka chargement –20℃, nka i bɛ sara nugu fɛ.

LTO (lithium titanate) bɛ ŋɛɲɛ kɛ –30 degɛrɛ teliya la. Jiginni? fanga hakɛ tilancɛ ani a sɔngɔ siɲɛ fila. I bɛ spec LTO dɔrɔn ni i bɛ ka bisiw dilan Siberi walima Fast{3}}charge stationw la Norvege.

Sanfɛla dan ye 45 ye bawo o sanfɛ, SEI bonya ni elekitoroliti tiɲɛni bɛ taa ɲɛ. Aw bɛ NMC811 selilɛri sara don o don degere 55 la, aw bɛna a lajɛ a jiginnen don fo 80 % kalo saba kɔnɔ san saba kɔnɔ.

Operating Temperature

Kɔnɔnatumu fanba bɛ specced –20℃fo 60℃, dɔw –30℃sisan. Nɛnɛ bɛ seli kɛ dɔrɔn ka kɛ lafiyabali ye (Ir sanfɛ, tension dɔgɔyalen doni kɔrɔ, seko tɛ se ka baara kɛ ni min ye kosɛbɛ). Funteni bɛ a si teliya, nka kelen-Waati 70 degɛrɛ bɔli tɛna a faga o yɔrɔnin bɛɛ - plastiki yɔrɔw bɛ se ka kɛ, hali o.

LFP ye funteni masakɛ ye. N ye Catl Grid modules ye ka 65℃continuous kɛ ka sɔrɔ ka sumaya kari. NMC/NCA o funteni na? Separatɛriw bɛ daminɛ ka dɔgɔya ani i bɛ don jugu kelen na ka bɔ fiɲɛbɔ la.

I bɛna seliw sɔrɔ minnu bɛ waso "–40℃fo 85℃operating." U bɛ yen. Sɔrɔdasi, tulu & gazi, ani EV dilanbaga dɔw b’u san. O sɛbɛndennin tɛ kule min na: 20–30 % fanga dɔgɔyali, 2–4× musaka, ani a ka c’a la, a bɛ se ka wuli ka bɔ a nɔ na bawo elekitoroliti falen bɛ faralifɛn kabakomaw na. I bɛ sara range la, i bɛ bɔnɛ fɛn tɔw bɛɛ la. Aw bɛ baara kɛ n’u ye dɔrɔn ni dron ka kan ka daminɛ –35 degɛrɛ la Alaska walima ni aw ka sateliti tɛ se ka sofa sɔrɔ.

Aw bɛ batiri kɛsu nɛrɛma dɔ bila Texas tile tilennen na ni degere 38 ye → selilɛri sanfɛla bɛ se degere 65 ma nɔgɔya la. Fast-Aw bɛ 300 kW pake charge samiya la → ΔT degre 25 la miniti tan kɔnɔ hali ni ji nɛnɛna. Aw bɛ nɛgɛso bila kɛnɛma –15 degɛrɛ kanada la su fɛ → a kɔnɔna funteni ye –13 degɛrɛ ye sɔgɔma, wa ayi, BMS tɛna a to aw ka teliya{9}}charge fo ka se sofa kununni ma.

Tesla, BYD, basigilen mɔgɔ o mɔgɔ ye serious, prefeuth the pack on the way to the superchargeur in hiver ani a bɛ fanga tiɲɛ samiyɛ fɛ. Aw ka AliExpress E-Scooter? Kunnaja.

Operating Temperature

Furafeereyɔrɔ	typique charge .	A ka ca .	Kɔlɔsiliw .
NMC / NCA .	0–45℃.	–20–60℃.	Fanga caman, thermal runaway princess .
LFP .	0–60 degere (dɔw 65) .	–20–65℃.	Tosty and safe, a bɛ farigan jugumanba koniya .
LTO .	–30–55℃.	–40–65℃.	charges yɔrɔ o yɔrɔ, a bɛ fanga tilancɛ mara .
"Sɔrɔdasi kalasi".	–40–85℃.	–40–85℃.	A bɛ yen, a bɛ waribɔlan dimi .

A kunba ye nin ye: Aw bɛ kunnafonidilan dantigɛliw minɛ i n’a fɔ sariya gɛlɛnw, minnu bɛ tali kɛ wari sarali la, ka ɲɛsin fɛnw bɔli ma, ani nkalon dafalenw “fɛn min bɛ kɛ tiɲɛ na kungo kɔnɔ.”

Aw bɛ aw ka pake mara degere 15–35 cɛ i n’a fɔ a bɛ se ka kɛ cogo min na hadamadenw fɛ ani a bɛna aw kanu siɲɛ ba kelen na. Fɛn tɔw bɛɛ ye tiɲɛniw kunbɛnni ye.