Sumaya lakanani ye mun ye?

Sumaya lakanani ye cogo min na litiyamu-ion seli bɛ a yɛrɛ tanga tasuma minɛni ma. I ye baara kɛ ni 18650 o 18650 o 18650 ye, lakana minɛn caman bɛ sɔrɔ o sanfɛ-kalan fitinin kɔnɔ-PTC, CID, Vent Disc, The Works. U bɛ yen bawo litiyamu-ion chimie bɛ fanga tɔni kelen mara yɔrɔ fitinin dɔ la, wa o fanga bɛna bɔyɔrɔ sɔrɔ ni fɛn dɔ ma ɲɛ kɔnɔna na.

N ye nin baara in kɛ kabini waati jan walasa ka n hakili to a la waati min na "thermal runaway" tun tɛ du kɔnɔ kumasen ye. O kɔfɛ, Dell Laptop hakilijiginw nana san 2006. Sony ye seli miliyɔn caman sama. O yɔrɔnin bɛɛ, bɛɛ tun b’a fɛ k’a dɔn min bɛ kɛ ni litiyɔmu-ion selilɛri dɛsɛra, ani min ka bon kosɛbɛ, o ye k’a dabila cogo min na.

thermal runaway vs.

Mɔgɔw ​​bɛ ninnu ɲagami waati bɛɛ. Sumaya kojugu ye ni selilɛri dɔ funteni bɛ bɔ kɛnɛma kow la-I y’a to mobili funteni kɔnɔ, chargeur ma baara kɛ, o mana kɛ fɛn o fɛn ye. Aw bɛ funteni sɔrɔyɔrɔ bɔ ani ka selilɛri nɛnɛ. Gɛlɛya ɲɛnabɔra.

Thermal Runaway ye waraba ye min ni tɔw tɛ kelen ye. Fɛn dɔ bɛ dɛsɛ seli kɔnɔ-N’a sɔrɔla danfaralan bɛ sɔgɔ, laala a dilanni nafa bɛ surunya surun dɔ la-wa seli bɛ daminɛ k’a yɛrɛ ka funteni sɔrɔ. O funteni bɛ kemikaliya tiɲɛni teliya, o min bɛ funteni caman Bɔ, o bɛ tiɲɛni teliya ka Taa a fɛ. O ye feedback loop ye. Ni i y’a kɔlɔsi waati min na, a bɛ tɛmɛn kaban ka jɔ.

Kɔnɔna bɛ laban ka gazi funteni ni tasuma bɔ, tuma dɔw la ni fanga ye. Batiri kɔnɔ, selilɛri kelen bɛ don boli la, o bɛ se k’a sigiɲɔgɔnw tobi ka cakɛda dɔ sigi sen kan. O de y’a to funteni lakanani bɛ yen.

Lakanabagaw ka kulu .

Aw bɛ selilɛri silindalen dɔ da ka a sanfɛla dawolo lajɛ. I bɛ minɛn caman Sɔrɔ yen minnu bɛ ɲɔgɔn kan, u kelen-kelen bɛɛ Dabɔra walasa ka gɛlɛyaw Sɔrɔ dakunw na minnu tɛ kelen ye.

PTC .

PTC (Coefficient de température positif) minɛn ye aw ka layini fɔlɔ ye. A basigilen ye polimɛri wafer ye min bɛ doni ni fɛnɲɛnamafagalanw ye. Normal temps, resistance low, current flow fine. Aw bɛ a sɔrɔ degere 80 sanfɛ walima o ɲɔgɔnna ani polimɛri fununi, a yɔrɔw bɛ danfara, u bɛ se ka tɛmɛ so sanfɛ. Sisan bɛ jigin ka se foyi ma.

Fɛn min ka di n ye PTCw la, o ye u bɛ segin. Aw bɛ selilɛri nɛnɛ, a bɛ baara kɛ tuguni. A ka ɲi kɛnɛma surukuw minɛni ma minnu bɛ jɛya joona.

Fɛn min man di n ye, o ye u bɛ u yɛrɛ minɛ cogo min na seriw la. An ye nin kelen in dege cogo gɛlɛn na pakew sɛgɛsɛgɛli senfɛ san damadɔw tɛmɛnen kɔ. Seli kelen ka PTC ye senna-tɛgɛrɛ, nka ni 48V juru bɛ ​​a kɔ fɛ, tension (voltage) bɛ arc (yɔrɔ) dɔrɔn ka tɛmɛ. Lakanali min bɛ baara kɛ kosɛbɛ selil ta fan fɛ, o tɛ sɛgɛsɛgɛli kɛ tuma bɛɛ ka se pake hakɛ ma.

Separator shutdown .

O faranfasilen ye o membrane finman ye k’i ka elekitorodew fara ɲɔgɔn kan ka sɔrɔ ka lithium ionw bila ka tɛmɛ. Datugulan dɔ la, o fɛn bɛ nɔgɔya degere 130 ɲɔgɔn na ani a bɛ se ka a datugu. Ion transport tɛ, electrochimique reaction tɛ, current tɛ.

A multilayer designs-PE inner layer, PP kɛnɛma layɛrɛ-Aw ye dɔw fara aw kan. PE bɛ ion flow datugu ka sɔrɔ PP bɛ fɛn bɛɛ to a ka fara ɲɔgɔn kan masin na ka mɛn dɔɔnin. A ye an san laala segin 10-15 wɛrɛ la tɔɔrɔ sɛgɛsɛgɛli la sanni kɔnɔna suruku ka yiriwa.

Fɛn kelen min ka kan ka to an hakili la: Separatɛriw tɛ segin. Ni selilɛri dɔ funteni sera fo ka se ka dabila, o seli bɛ kɛ. Aw bɛ a bila a nɔ na.

CID .

Sisan tigɛlan min bɛ tigɛ, o bɛ degun jaabi, a tɛ jaabi di funteni ma. Ni fɛnw bɛ daminɛ ka tiɲɛ, u bɛ gazi bɔ. CID ye disiki finman fila yɔrɔ ye-Welded together that pop apart when internal pressure bɛ sanfɛ ka se-dɔw yɔrɔ dɔ la 1 MPa lamini na ka kɛɲɛ ni a dilanni ye.

Nin ye ɲɔgɔndan banbali ye. Ni seli dɔ bɛ ka gazi caman bɔ, a tiɲɛna kaban ka tɛmɛ a baara kan. I b’a fɛ a ka bɔ kafoda la.

Vente de vent .

A laban kɛra. Ni degun bɛ to ka CID baarakɛcogo tɛmɛnen jɔ, fiɲɛbɔlan bɛ kari ani ka gaziw bila ka boli. Fɛn min bɛ bɔ, o bɛ se ka tasuma ani baga, nka ventilateur contrôlée bɛ tiɲɛni kɛ min tɛ se ka kunbɛn. An bɛɛ ye seliw ka videyow ye minnu bɛ bɔ i n’a fɔ tasuma-fanga-wari-{3}}o de bɛ kɛ ni fiɲɛ tɛ.

BMS layɛrɛ .

Cell-Level Protection bɛ dɛsɛ teliyalenw ɲɛnabɔ. Batiriw ɲɛnabɔli sira bɛ fɛn tɔw bɛɛ ɲɛnabɔ-Kɔlɔsili pake funteniw, throttling charge rates ni fɛnw sumayalen don, ka contacteurs tigɛ ni sensor kalanw bɔra u nɔ na.

O sitɛmu fila bɛ ɲɔgɔn dafa. BMS bɛ slow-gɛlɛyaw yiriwa minnu bɛ se ka sumaya kunbɛncogo ɲuman bali. Cell-Level minɛnw bɛ kɔnɔna dɛsɛ teliyalenw minɛ, surface sensorw tɛ se ka minnu dɔn waati kɔnɔ.

chimie bɛ danfara don .

Lithium-ion bɛɛ tɛ da ɲɔgɔn fɛ ni a bɛ fɔ funteni sabatili ma. Aw ka cobalt-Simiw basigilen-lco, nmc-Fasa fanga caman na nka u bɛ to ka kɛ funteni na. Cobalt-oxygène bond bɛ tiɲɛ ni temps kɔrɔtalen ye ani ka oksizɛni bɔ min bɛ baloli balo.

LFP ye yafali ye ka tɛmɛ. Nɛgɛ-Fositɛri jɔcogo bɛ ɲɔgɔn minɛ ka ɲɛ funteni degun kɔrɔ. I ye kunkolo-yɔrɔ caman sɔrɔ baarakɛcogo nɔgɔman ni farati yɔrɔ cɛ. Lakanali minɛn kelenw, nka u tɛ baara kɛ i n’a fɔ u bɛ gɛrɛ ɲɔgɔn na.

Nin ye yɔrɔba ye min b’a jira ko LFP ye baara ta fɛnw minɛcogo la. Forklifts bɛ ɲɛnamaya gɛlɛnw kɛ-Sara teliya la, funteni jiginni, waati ni waati ka tɔɔrɔ. I b’a fɛ ka chimie sɔrɔ min bɛ se k’a ta. Polinovel pakew bɛɛ bɛ jɔ ni LFP selilɛriw ye o kun tigitigi de kama.