Batiri kɔnɔna kunbɛncogo sɛgɛsɛgɛli: Mun na a ye baarakɛminɛn ye min bɛ se ka kɛ ka batiri kɛnɛya jateminɛ

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Sɛtanburukalo tile 18, san 2022

Kɔnɔna rezisti sɛgɛsɛgɛli bɛ nafa ɲuman lase wari bilalen ma batiri ladonni na. A tɛ sitɛmu dabila, a tɛ bɔli minɛn si wajibiya, wa a bɛ batiri jateminɛ dafalen kɛ miniti damadɔ kɔnɔ. Nin barokun in bɛ fɛɛrɛ sɛgɛsɛgɛ min bɛ kɔnɔna kɛlɛli ni batiri kɔrɔya siri ɲɔgɔn na, ani cogo min na rezisti kunnafoniw bɛ se ka kɛ sababu ye ka ladonni kofɔlen kɛ.

Kɔnɔna-kɛlɛ bɛ Bɔ yɔrɔ min na: Fiziki faamuyali

Walasa ka kɔnɔna sɛgɛsɛgɛli nafa dɔn, mɔgɔ ka kan ka fɔlɔ k’a faamu batiri kɔnɔna rezisti ye min ye tiɲɛ na. A tɛ farikolo hakɛ kelen ye nka a ye fɛn caman faralen ye ɲɔgɔn kan叠加 ka bɔ farikolo taabolo danfaralenw na.

Fɔlɔ ye ohmic resistance ye, n’a bɛ fɔ fana ko DC kɔnɔna resistance, o bɛ bɔ elekitorode fɛnw ka resistivity la, electrolyte ka ion conductivity (ionique conductivité) ani contact resistance (contact resistance) la electrode-current collector interfaces (elektɔri-current collecteur interfaces) la. Ohmic resistance bɛ jaabi teliya la — voltage jigin fɔlɔ ni doni bɛ da a kan, o bɛ bɔ ohmic resistance de la fɔlɔ. A bɛ wuli dɔɔni dɔɔni ni kɔrɔya ye ni elekitorode fɛnw bɛ kɛ granulate ye ani ni kuran dalajɛlanw bɛ sɔgɔ.

Filanan ye elektrɔkimiki polarizesiyɔn rezisti ye, ka bɔ redox reactions (redox reactions) ka kinetic resistance la elekitorode sanfɛyɔrɔw la. Ni u bɛ bɔli kɛ, fɛn minnu bɛ baara kɛ elekitorodew kan, olu bɛ oksidan-dɔgɔyali walew kɛ minnu bɛ ni baarakɛ fanga barika ye. Polarization resistance bɛ bonya dɔɔni dɔɔni doni tali kɔfɛ ani ka sabati ni a jɔlen don. A bɛ wuli ni kɔrɔya ye ni fɛn dilannenw tununna ani ni farikoloɲɛnajɛ yɔrɔ bɛ dɔgɔya.

Sabanan ye polarizesiyɔn polarize (polarize) kɛlɛli ye, ka bɔ fɛnɲɛnamafagalanw (concentration gradients) la ɛlektroliti kɔnɔ elekitorode (elektɔri) sanfɛyɔrɔw kɛrɛfɛ. Jibɔ waati, ion baarakɛtaw bɛ dun elekitorodew la; ni elekitoroliti masɔrɔli tɛ se ka to sen na, elekitoroli sanfɛla hakɛ bɛ bɔ a caya la, o bɛ kɛ sababu ye ka tension wɛrɛ jigin. Polarizasiyɔn (polarisation de concentration) nafa ka bon dɔrɔn ni bɔli hakɛ ka bon ani a tɛ jate ni hakɛ dɔgɔman ye.

Naaninan ye ɲɔgɔndan kunbɛnni ye, i n’a fɔ welda jogindaw minnu bɛ tab ni platiw cɛ, sigilanw bɛ batiri datugulanw ni terminalw cɛ, ani kɛnɛma ɲɔgɔndanw (bolts, busbars). Kontakti rezisti bɛ sabati kosɛbɛ ɲɛnamaya bɛɛ kɔnɔ nka a bɛ se ka wuli yɔrɔnin kelen ni ɲɔgɔndanw lajɔra walima ni u bɛ sɔgɔsɔgɔ — o ye kɔnɔna rezisti sɛgɛsɛgɛli bɛ jɛɲɔgɔnya filiw dɔn cogo min na tigitigi.

Nin yɔrɔ naani ninnu faamuyali nafa ka bon bawo kɔnɔna na, farikolo tangacogo sɛgɛsɛgɛli bɛ ni kɔrɔya taabolo danfaralenw ye. Ohmic resistance bɛ kɛ ka caya ni kɔrɔya joona ye; polarize (polarize) kɛlɛli ka ɲɛsin kɔrɔya cɛmancɛ ma; polarize de concentration (polarize) nafa ka bon dɔrɔn ni hakɛ caman ye. O kɔrɔ ye ko kɔnɔnajɛya sɛgɛsɛgɛli bɛnnen don kosɛbɛ kɔrɔya daminɛ na ani cɛmancɛ la, wa a tɛ ɲɛsin kosɛbɛ seko labanw dɔgɔyali ma.

Jɛɲɔgɔnya min bɛ kɔnɔnajɛya ni kɔrɔya cɛ: Mun na kɛlɛli bɛ wuli sani seko ka kɛ

Batiri kɔrɔbayali bɛ kɛ sababu ye ka seko dɔgɔya ani ka kɔnɔna kɛlɛli wuli waati kelen na, nka o fila tɛ taa ɲɛ waati kelen na. Ɲɛnamaya 60-70% fɔlɔ la, seko ni dɔnko bɛ dɔgɔya kosɛbɛ ka sɔrɔ kɔnɔna kɛlɛli bɛ dɔ farali jira min bɛ se ka suman. Ɲɛnamaya 30% laban na, seko bɛ teliya ka jigin ka sɔrɔ a kɛlɛli ka bon kaban. O waati danfara in ye kɔnɔnajɛya sɛgɛsɛgɛli nafa jɔnjɔn ye i n’a fɔ ladonni baarakɛminɛn min bɛ se ka fɔ ka ɲɛ.

Aw bɛ telefɔni batiri 2V danma dɔ ta min dilannen don ni san 10-15 ye. San 5-7 fɔlɔw la, a seko bɛ se ka dɔgɔya dɔrɔn ka bɔ 100% na ka se 90%+ ma — ladonni baarakɛlaw bɛ a fɔ nɔgɔya la ko batiri kɛnɛyara hali bi. Nka o waati kelen in na, a bɛ Se ka Kɛ ko kɔnɔna-kɛlɛli Kɛra siɲɛ fla ye kaban walima ka Tɛmɛ o kan ka Bɔ izini nafa la min bɛ Taa 20 mΩ ɲɔgɔn na ka Se 40-50 mΩ ma. Ni jateminɛ bɛ daminɛ dɔrɔn ni seko dɔgɔyara yelen na (80% SOH duguma), finɛtiri min bɛ se ka fɛn wɛrɛ bila a nɔ na, ​​o tɛmɛna kaban — batiri bɛ baara kɛ hali bi nka a donna dɔgɔyali teliya la, wa a bɛ se ka tiɲɛ tiɲɛni nata waati.

Nafa filanan min bɛ kɔnɔna na farikolo tangacogo sɛgɛsɛgɛli la, o ye ka balanbaliya nɔgɔlenw dɔn. Batiri kelen kɔnɔ, ni seli kelen y’a jira ko a ka ca ni 30% ye ka tɛmɛ kulu hakɛ danma kan — hali n’a nafa dafalen bɛ spec kɔnɔ hali bi — a ka kan ni jateminɛ ye. O selilɛri bɛ se ka kɛ ni a dilanni nafama ye (weld man ɲi) walima a kɔrɔla joona (electrolyte depletion). Ni kɔnɔnajɛya sɛgɛsɛgɛli ma kɛ, n’i ye sɛrɛkili sɛgɛsɛgɛli dɔrɔn de lajɛ, o ɲɔgɔnna anomaliw bɛ ɲini ka dɔn — tension aggregate moyennes across all cells, diluting any single anomalies.

Kɔnɔna na, farikolo tangacogo sɛgɛsɛgɛli fɛɛrɛw: K’a ta bololabaara la ka taa a bila ɛntɛrinɛti kan

Kɔnɔna na rezisti sɛgɛsɛgɛli fɛɛrɛw bɛ se ka tila ka kɛɲɛ ni sɛgɛsɛgɛli cogoyaw ye ani tiɲɛni wajibiyalenw. A nɔgɔman ye bolola kɔnɔna rezistimɛtiri ye : ka klipuw siri batiri dakunw na, ka sɛgɛsɛgɛli butɔni digi, ka nafa kalan. Nafa minnu b’a la, olu ye nɔgɔya ye, musaka dɔgɔman, ani minɛn dɛmɛnan tɛ yen; nafa minnu bɛ sɔrɔ o la, olu ye seli kelen baara ye waati kelen na, kunnafonidilanw sɛbɛnni bolo la, ani kalanw ka sensitivity to clip contact resistance.

Dakun filanan ye doni-kɔnɔ-fɛnw sɛgɛsɛgɛli ye, o la, AC pikiri ni DC bɔli fɛɛrɛw. AC pikiri bɛ kurun fitinin dɔnta dɔ don batiri kɔnɔ min bɛ kɛ ni frequency (a ka c’a la 1kHz) ye, ka AC voltage jigincogo suman walasa ka resistance (jatebɔ) kɛ. Nafa minnu bɛ a la: batiri bɔli yɛrɛ tɛ, a dafalen don ɛntɛrinɛti kan; nafa tɛ : a bɛ AC kɔnɔna rezisti suman, o min ni DC kɔnɔna rezisti tɛ kelen ye. DC bɔli bɛ DC doni kuntaala surun dɔ kɛ (a ka c’a la, anpirili tan ni tan bɛ kɛ 100ms fo segin 1 kɔnɔ) ani ka tension danfara suman ka kɔn doni ɲɛ ani doni kɔfɛ walasa ka DC kɔnɔna rezisti jate. Nafa minnu bɛ a la: a bɛ DC kɔnɔna rezisti lakika suman; nafa tɛ : a bɛ doni dɔ da, min bɛ dankari dɔw kɛ ɛntɛrinɛti baarakɛcogo la.

Dakun sabanan ye ɛntɛrinɛti kɔnɔna rezisti kɔlɔsili siraw ye : sensɛri banbaliw sigilen bɛ seli kelen-kelen bɛɛ kan, kunnafoniw bɛ ci bisi fɛ ka taa kɔlɔsili jatigila dɔ ma. Nafa minnu bɛ a la : kɔlɔsili kɛli 24/7 ni otomatiki sɛbɛnni ni sɛgɛsɛgɛli ye ; nafaw : musaka ka bon ani sigili gɛlɛn, min bɛnnen don dɔrɔn baarakɛcogo minnu bɛ se ka da u kan kosɛbɛ (donanw sigiyɔrɔw, nɛgɛso tɛmɛsira).

PK59C ni PK59D sigilen bɛ kulu filanan ni sabanan cɛ — bololaminɛnw minnu bɛ baara kɛ ni DC bɔli sumanikɛlan ye, minnu bɛ tiɲɛni ni dannaya di ka tɛmɛ AC-pikiri bolola mɛtɛrɛ kɔrɔw kan kosɛbɛ. Telefɔni basigiyɔrɔ ni UPS ladonniko fanba la, o bɛ musaka ni musaka kɛcogo ɲuman jira.

Baara kɛcogo ni kɔnɔna rezisti kunnafoniw ye walasa ka ladonni kofɔlenw kɛ

Kɔnɔna kɛlɛli sɛgɛsɛgɛli nafa lakika tɛ sumani kelen na nka a bɛ sɔrɔ kunnafonidilanw dalajɛli ni taabolo sɛgɛsɛgɛli kuntaalajan na. Kalan kelen bɛ sisan cogoya fɔ i ye; ŋaniya min bɛ taa ɲɛ, o b’a fɔ i ye batiri bɛ taa yɔrɔ min na.

Baara jusigilan ye batiri kɛnɛyako sɛbɛn dɔ jɔli ye. Kɔrɔbɔli kelen-kelen bɛɛ kɔfɛ, aw bɛ kɔnɔna rezisti, voltage, test don ani lamini funteni sɛbɛn seli kelen-kelen bɛɛ la. Kɔrɔbɔli ka kan ka kɛ a dɔgɔyalenba la kalo saba o kalo saba, kalo o kalo telefɔni yɔrɔ kɔrɔlenw na. Kunnafoni ka kan ka jate i n’a fɔ waatibolodacogo kurulenw seli kelen-kelen bɛɛ la. Kɔnɔnatumu kɛnɛman bɛ ŋaniya dɔ jira min bɛ wuli dɔɔni dɔɔni, min bɛ sabati. Seli min ka rezisti bɛ pan yɔrɔnin kelen waati kunkurunnin kɔnɔ — hali ni a nafa dafalen bɛ dɔgɔya hali bi — o b’a jira ko anomali dɔ bɛ yen min ka kan ka sɛgɛsɛgɛli wɛrɛw kɛ.

Setting预警 thresholds ye fɛɛrɛ jɔnjɔn nata ye. Dakunw tɛ se ka kɛ kelen ye — batiri suguya wɛrɛw, u dilannikɛlaw, ani u jɔcogo tɛ kelen ye, u ka se ka u yɛrɛ tanga dafalen hakɛw ni u ka fɛn caman Changement hakɛw tɛ kelen ye. Fɛɛrɛ nafama dɔ : baara kɛ ni batiri kura izini nafa ye i n’a fɔ basigi, ka lasɔmini hakɛ fila sigi — LASƆMINI ka kɛ 1,5× izini nafa ye, WAATI min bɛ kɛ 2× izini nafa la. Ni izini kunnafoniw tɛ sɔrɔ, aw bɛ batiri kura kulu kelen cɛmancɛ kɛ i n’a fɔ kunnafoni, walima aw bɛ lasɔmini hakɛ sigi 1,3× la, o min ye rezisti dɔgɔman ye kulu kelen kɔnɔ.

Tɛmɛsira sɛgɛsɛgɛli ɲɛtaa bɛ kɛ sababu ye ka ɲɛnamaya tolenw fɔ ka ɲɛ. Ni mɔgɔ bɛ bɛn rezisti-ni-waati kurulen ma, a bɛ se ka waati yɔrɔ min na rezisti bɛ se dɛsɛ dancɛ ma, o fɔ, ka baarakɛwaati tɔ fɔ. O fɛɛrɛ in bɛ kɛ kaban batiri banki belebelew ɲɛnabɔli la telefɔni ni kunnafonidilanw baarakɛyɔrɔw kɔnɔ, nka a ma kɛ sariya ye fɔlɔ ladonni jɛkulu fitininw kɔnɔ. Ni sɛgɛsɛgɛli kunnafoniw bɛ ka lajɛ ani ni sɛgɛsɛgɛlikɛminɛnw bɛ ka ɲɛtaa sɔrɔ, nin kofɔcogo in bɛna kɛ dɔɔnin dɔɔnin izini sariya ye.

A laban na, kɔnɔna rezisti kunnafoniw ka kan ka fara ɲɔgɔn kan ni kunnafoni wɛrɛw ye. Resistance wuli ye kɔrɔya taamasiɲɛ fɔlɔ ye, nka o dɔrɔn tɛ. Lamini funteni, flot voltage tariku, charge-discharge cycles, ani string consistency data, ni u farala ɲɔgɔn kan, o bɛ kɛ sababu ye ka ladonni latigɛ tigitigiw kɛ. Misali la, seli min ka rezisti kɔrɔtalen don, n’a fana bɛ to ka charge (sara) kojugu, o bɛ se ka kɛ chargement (sarali) ɲɛnabɔli ko ye sanni ka kɛ batiri tiɲɛni ye — n’i y’a bila a nɔ na, ​​o bɛna nafolo tiɲɛ min bɛ se ka baara kɛ hali bi.

Ladilikan nafamaw: Ka kɔnɔnatumuw sɛgɛsɛgɛli don ladonni taabolo la

Ladonni jɛkuluw fɛ, ka kɔnɔnatumuw sɛgɛsɛgɛli don taabolo kɔrɔw la, o tɛ minɛnw bilali wɛrɛ wajibiya — ni modɛli dɔ bɛ yen ka bɔ PK59A la ka se PK59D ma, o bɛ kɛ kaban, kɔnɔna rezisti sɛgɛsɛgɛli seko bɛ yen. Min ka kan, o ye ka kɔrɔbɔli baarakɛcogo ni kunnafonidilanw sigi senkan.

Kɔrɔbɔli baarakɛcogo ladilikan : kɔnɔna rezisti suman i n’a fɔ a daminɛcogo batiri kura sɔnni na; sɛgɛsɛgɛli kɛ tuma ni tuma baara waati (kalo saba o kalo, kalo o kalo yɔrɔ gɛlɛnw na); aw bɛ seli kelen-kelen bɛɛ suman kelen-kelen o kɔfɛ ka fara ɲɔgɔn kan; kɔnɔna rezisti, voltage ani lamini funteni sɛbɛn sɛgɛsɛgɛli kelen-kelen bɛɛ kama; darapo selilɛri minnu ka se ka u yɛrɛ tanga cogo bɛnnen na tuguni; ka batiri kɛnɛyako jatebɔsɛbɛn dɔ labɛn kalo saba o kalo saba.

Donanw ɲɛnabɔli kama, baara kɛ ni Excel ye sɛgɛsɛgɛli misɛnninw kama (seli tan fo kɛmɛ) ni tabali sigicogo ni kunnafoni kura taabolo kololen ye. Ni aw b’a fɛ ka balansi cɛmancɛw sɔrɔ (kɛmɛ fo ka se ba caman ma), aw ye batiri ladonni porogaramuw lajɛ minnu bɛ baara kɛ ni baarakɛlaw ye. Ni sɛgɛsɛgɛlibaw kɛra (ba caman fo ba tan ni tan), ladonni ɲɛnabɔli siratigɛ min bɛ kɛ cɛmancɛ la, n’a bɛ tali kɛ jatigila kɔlɔsilikɛlaw ni SCADA la, o bɛnnen don.

Sannikɛlaw minnu bɛ sugandili dakun na hali bi, aw bɛ minɛnw bila jɔyɔrɔ fɔlɔ la minnu bɛ kɔnɔna kɛlɛli sɛgɛsɛgɛli dɛmɛ. Hali ni kɔnɔna rezisti jateminɛnan musaka ka ca ni voltmètre nɔgɔman ye, wari min bɛ sɔrɔ a la, o nafa ka bon kosɛbɛ ni a suman ni baarakɛbaliya bɔnɛw ye minnu bɛ sɔrɔ batiri tiɲɛni fɛ. Telefɔni basigiyɔrɔ kelen batiri tiɲɛni bɛ se ka kɛ sababu ye ka jagokɛlaw ka tiɲɛni ba tan ni ba kɛmɛ fo ka se ba kɛmɛ caman ma, k’a sɔrɔ kɔnɔna rezisti sɛgɛsɛgɛlikɛlan musaka ye ba damadɔ dɔrɔn ye. View the Battery Test Instruments Collection