Litiyɔmu-Ion batiriw jogo ye mun ye?
Lithium-ion batiriw ka seko ni kuran fanga .
Charge-Discharge reaction of lithium-ion batiriw, elekitorode pozitif ni negative ka baarakɛminɛnw dɔrɔn de bɛ litiyɔmu-ion intercalation/deintercalation reactions kɛ, ka sɔrɔ elekitoroliti ni fɛn wɛrɛw tɛ dun. O la, se min na, elekitorode fɛn ɲumanw ni jugumanw bɛ litiyɔmu ionw don ɲɔgɔn na/ka u bɔ ɲɔgɔn na, o bɛ batiri da wulilen-lisite hakɛ latigɛ, ani litiyamu ionw hakɛ min bɛ fɛn baarakɛtaw ni ɲɔgɔn cɛ, o bɛ fɛn baarakɛtaw seko jira. Global lithium-ion batiri dilannikɛlaw ani litiyɔmu-ion batiri feerelaw bɛ u jigi da nin fɛnw cogoya kan walasa ka se ka masala kɛcogo sabatilen sɔrɔ ani ka fɛn dilannenw kɛcogo basigilen sɔrɔ.
Elektɔri jugu ta la, waleyali bɛ Kɛ ka Kɛɲɛ ni daɲɛ (1.2) ye. Kabɔn kelen (12g) kelen na, litiyamu ion 1/6 bɛ se ka don ɲɔgɔn na. O la, elekitorozɛni jugu fɛn min bɛ se ka kɛ, o seko kɛrɛnkɛrɛnnen ye teori ye, o ye .
1/6(mol)×96485(Faraday constant,c/mol)/12(g)=3400c/g=372(MA·H/G) (1.5)
Don o don baara la, ka litiyɔmu bɔnɛ jateminɛ ka a sababu kɛ adsorption ani solide électrolyte interphase (SEI) filimu sɔrɔli ye, karɔbɔli fɛnw seko kɛrɛnkɛrɛnnen yɛrɛ bɛ se ka sɔrɔ cogo min na, o ye 300–345 ma·h/g ye. Lithium-ion batiriw feerelaw bɛ se ka nin hakɛ in sɔrɔ graphite formulation optimisé ani coating processus tigitigiw fɛ.
Elektɔrifɛn ɲuman na, a seko bɛ bɔ litiyamu ionw hakɛ la minnu bɛ se ka bɔ/don. Ni aw ye licoo 1 ta misali la, fo ka se litiyamu ion 1 ma licoo 2 kɔnɔ, o bɛ se ka sen don o kɛcogo la. O la, LICOO 2 (Masa 97,86) ka seko kɛrɛnkɛrɛnnen teoritiki ye .
1(mol)×96485(c/mol)/97.86(g)=985.95c/g=273.9(ma·h/g) (1.6)
Tiɲɛ na, walasa ka licoo fɛnɲɛnamafagalan ka kristalɛ sabatili sabati, a ka c’a la, litiyamu ionw 30%–60% dɔrɔn de bɛ u sen don o wale in na. O la, Licoo 137–164 ma·h/g ka seko kɛrɛnkɛrɛnnen yɛrɛ. Lithium-ion batiri OEM dilannikɛlaw bɛ charge ni bɔli juguya kunbɛn BMS kɔrɔlenw fɛ walasa ka cycle ɲɛnamaya kɛ ka caya ka sɔrɔ ka lakana sabati.
Nɛgɛ fositɛri litiyamu ta la, litiyamu ion 1 mole kelen na nɛgɛ fositɛri bɛ se ka a sen don a la kosɛbɛ. O la, nɛgɛ fositɛri litiyɔmu (molecule moléculaire 157.8) ka seko kɛrɛnkɛrɛnnen teoritiki ni tiɲɛ yɛrɛ la, o ye .
1(mol)×96485(c/mol)/157.8(g)=611.44c/g=169.8(ma·h/g) (1.7)
Sigida la, Li/Li⁺ ka redox potentiel standard ye a dɔgɔyalenba ye, min bɛ se -3.04 V (vs. standard hydrogène électrode). Karɔbɔni nafamafɛnw na, litiyɔmu-ion bɔli ni a doncogo seko bɛ Li/Li⁺ balannako seko kɛrɛfɛ. Ka kɛɲɛ ni elekitorokimika teori ye, so funteni na, elekitorode elekitorode ka elekitorode seko E ye .
e=e degere + 0.02567 · ln[c(li⁺)/c(li,c₆)] (1.8)
min
e℃- elekitorode standard potentiel;
c(li⁺) - litiyɔmu ionw hakɛ elekitoroliti jilama kɔnɔ;
c(li,c₆) - litiyɔmu ionw hakɛ elekitorode jugu karɔbɔli la.
Ni litiyamu ion hakɛ bɛ sɔrɔ jilama kɔnɔ ani elekitorode jugu karɔbɔli la, elekitorozɛni negela ka elekitorode seko bɛ bɛn hakɛ dɔgɔyali seko ma min bɛ se ka dɔgɔya. A ka c’a la, litiyamu ion hakɛ min bɛ elekitoroliti la, o bɛ jɔ, o la, fɛn minnu bɛ fɛn caman Changements en litiyɔmu hakɛ min bɛ sɔrɔ elektrɔdi karɔbɔli jugu la, o bɛna kɛ sababu ye ka fɛn caman Changements de l’électrode negative. Sisan, diɲɛ bɛɛ ka fɛɛrɛ tɛ yen min bɛ se ka Li/C2 ka balancogo tigitigi jatebɔ ni X hakɛ caman ye. A ka c’a la, a bɛ Labɛn k’a Kɛ kɔrɔbɔli ye. Kɔrɔbɔliw b’a jira ko grafite-fɛn minnu sinsinnen bɛ fɛn caman kan, olu bɛ danfara caman bɔ 0–0,4 V cɛ (vs. li/li⁺), o b’a to u bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye. Jaa 1.2 bɛ charge typique-Discharge taamasiyɛn curve jira graphite negatif electrode dɔ la.
Licoo3 la, elekitorode ɲuman fɛn na, litiyɔmu intercalation/deintercalation processus ye kelen-fasa wale ye. I n’a fɔ litiyamu ion hakɛ min bɛ elekitorode ɲuman na, o bɛ yeli kɛ, elekitorozɛni ɲuman seko fana bɛ Changé. Ni an ye litiyamu ion hakɛ jateminɛ elektrɔli la, o ye 1 mol/L ye, ka ɲɛsin waleyali ma min bɛ equation (1.1) kɔnɔ, elekitorode pozitif potentiel E ye .
e=e degere + 0.02567 · ln[c(li⁺,coo₂)/c(Locio₂)] (1.9)
min
e℃- elekitorode standard potentiel;
c(licoo 2) - Licoo2 hakɛ min bɛ sɔrɔ elekitorode ɲuman na;
c(li⁺,Coo₂) - Li⁺ ni COO₂ hakɛ elekitorode ɲuman kɔnɔ;
I n’a fɔ litiyamu ionw bɛ bɔ cogo min na, elekitorode pozitif seko bɛ jigincogo jira.
Charge-Fositɛri litiyɔmu bɔli taabolo ye nɛgɛ fositɛri litiyamu ye ka kɛ nɛgɛ fositɛri ye a tali kɔfɛ.
A bɛ kɛ ni litiyɔmu nɛgɛ fositɛri elekitorode ye, o ye .
LifePo1 ↔ Fepo1 + Li
A ka litiyɔmu-Ion intercalation/deintercalation processus ye fila{1}}fasa wale ye. O la, fɛn minnu bɛ ɲɔgɔn sɔrɔ litiyamu ion hakɛ la elekitorozɛni ɲuman na, olu tɛ nɔ bila elekitorode ɲuman caman yeli la. A ka balannako seko ye .
e=e degere + 0.02567 · ln[c(Fepo₄)/C(LifePo2)] (1.11)
Fɛnmugu saniyalenw hakɛ ye 1. Ka da a ka thermodynamique paramètres kan, teori balannako seko ye 3,4 V ye.
Charge typique-Discharge characteristic curve of lithium phosphate material jiralen don ja 1.3 kɔnɔ.
Litiyɔmu-Ion batiriw ka baarakɛcogo cogoyaw .
Ni an ye a suma ni batiri tɔw ye, litiyɔmu-ion batiriw bɛ ni nin jogo ninnu ye minnu bɛ dɔn kosɛbɛ litiyɔmu-ion batiri tilabagaw fɛ ani izini kliyanw fɛ:
fanga camanba.Litiyɔmu ka fanga hakɛ-ion batiriw bɛ se 100 w·h/kg ani 200 w·h/L walima ka tɛmɛ o kan. Kɔsa in na, ternary cathode lithium-ion batiriw ye fanga kɛrɛnkɛrɛnnen sɔrɔ 200 w·h/kg. Baara kɛli ni high-nickel silicon-Anode materials basigilenw ani litiyɔmu-rich cathode materials ye, mass spécifique energy bɛ jira ka se 400 w·h/kg ani volumetrique energie density 900 w·h/L, fo ka tɛmɛ laadala batiriw kan. O la, litiyɔmu-Ion batiriw bɛ kɛ ka caya ɛntɛrinɛti fɛnw na minnu bɛ se ka ta ani kuran mɔbiliw.
da wulilen kɔrɔ-circuit voltage.K’a sababu kɛ baara ye min bɛ kɛ ni fɛnɲɛnamafagalanw ye minnu tɛ{0}}jilamaw ye, o ye-cell voltage kelen ye ka se 3.6–3.8 V ma, o ye nikɛri-metal hydride walima nickel-cadmium batiriw ta siɲɛ 2–3 ye. Ka baara kɛ ni katodi fɛnw ye minnu ka bon-voltage cathode fɛnw bɛ se ka dɔ fara selil kelen ka baarakɛcogo kan ka se 4,5–5 V ma, o min ye sababu nafama dɔ ye min bɛ litiyɔmu ka fanga camanba sɔrɔ-ion batiriw.
A bɛ se ka caya-sara ni bɔli.Misali la, all{0}}solid-state lithium-ion batiriw ni polimɛri elektrɔliw bɛ se ka bɔli hakɛw sɔrɔ ka tɛmɛ 10C kan ni lakana ɲuman ye; Lithium-Ion batiriw ni litiyɔmu nɛgɛ fositɛri ye i n’a fɔ katodi bɛ se ka 100C bɔli sɔrɔ.
A yɛrɛ dɔgɔya-Discharge rate.So funteni na, kalola yɛrɛ{0}}Batiri litiyamu-Ion hakɛ bɛ dɔgɔya ka tɛmɛ 10% kan, a ka dɔgɔn ni nikɛri-nɛgɛso batiriw ye (15%) ani nikɛri{5}}kadmium batiriw ta tilancɛ. A yɛrɛ{7}}Nafa litiyɔmu nɛgɛ fositɛri batiriw bɔli hakɛ ka dɔgɔn 3% ma.
sigida lakanani , .min kɔnɔ, plɔmu, kadɔmu, mɛkisikalan, walima fɛn jugu wɛrɛw tɛ sɔrɔ a la, wa a tɛ sigida nɔgɔ.
No memory effect.Memory effect (hakilijagabɔ nɔ) bɛ tali kɛ ko la min na batiri seko bɛ dɔgɔya ni a chargera kokura sani a ka bɔ ka ban walima ni a bɛ baara kɛ ka sɔrɔ ka charge (dafalen) kɛ ka dafa (hakilijagabɔ nɔ tɛ seko tiɲɛni ye). Lithium-Ion batiriw tɛ hakilijagabɔ kɛ.
Lakanali ɲuman.Lithium-ion batiriw bɛ caman kɛ karɔbɔli fɛnw na i n’a fɔ elekitorode jugu, min bɛ se ka kɛ ni elekitorode ye min bɛ se ka kɛ nɛgɛ litiyamu ye. Litiyamu ionw bɛ se ka kɛ sababu ye ka karɔbɔni kɛ ɲɔgɔn na ani ka u bɔ u la, ka dɔ bɔ kosɛbɛ litiyɔmu nɛgɛ bɔli la ani ka batiri lakanani ɲɛ kosɛbɛ. San laban ninnu na, Flame-Retardant farankanw, tasuma{4}}retardant separators, PTC (Positif temperature coefficient) minɛnw, explosion-proof valves, batiriw maracogo, ani fɛɛrɛ wɛrɛw ye a jira ko litiyamu{{6}Ion batiriw lakanani ka bon kosɛbɛ.
Sikili jan ɲɛnamaya.Lithium-ion batiriw ka cycle life ka ca ni 500 cycles ye. Litiyɔmu nɛgɛ fositɛri batiriw ka cycle ɲɛnamaya ye 2000–3000 cycles ye. Ni a ni anɔdi fɛnw bɛ bɛn ɲɔgɔn ma ni cycle se ka bon (i n’a fɔ litiyɔmu titanate), cycle 10.000 ni kɔ bɛ se ka sɔrɔ. O b’a to litiyɔmu nɛgɛ fositɛri batiriw bɛ kɛ sugandili ɲuman ye fanga marayɔrɔ batiriw ni-Scale ESS porozɛbaw la.
