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Lithium titanate LTO Battery ?


aureliu67

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Astazi am aflat despre acest tip de baterii, care se folosesc si la masini de catre unii si in stocarea energiei din panourile fotovoltaice. Intrebarea mea este de ce nu sa vorbit nimic despre acest tip de baterii, tinand cont ca la bateriile deep cycle incepe degradarea  dupa 300 de cicluri iar la LTO 25 000? Tinand cont ca pretul/capacitate este dublu la LTO  LTO66160 10C fata de omologul sau cu acid, iar durata de viata este de 100 de ori mai mare, cred ca nici nu se pune problema in alegerea lor.

 Detalii despre  LTO.

Battery brand: Yinlong A-level
Nominal voltage: 2.3V
Rated capacity: 35Ah
Internal resistance: less than 0.2-0.35mΩ
Discharge cut-off voltage: 1.5V
Maximum continuous discharge current: 350A (10C)
Charging cut-off voltage: 2.9V
Maximum pulse discharge current: 700A (20C)
Cycle life (80% DOD): 25000 cycles
Working temperature: -50°C ~ 65°C
Weight: 1.2±0.05kg
Size: 66*160mm
Shipping list: Battery + connector + M12 nut
Features of lithium titanate battery:

▲Good charging and discharging ability: high power discharge and fast charging ability

▲Long cycle life: The cycle life is 25,000 cycles (80% DOD), which is more than 10 times that of traditional lithium-ion batteries.

▲Ultra-low temperature performance: -30℃ is good at low temperature, working temperature range is -50℃~+65℃.

▲Good safety performance: There is almost no SEI film on the lithium titanate anode to prevent the battery from overheating and causing a fire.

▲Lithium titanate battery has the characteristics of long life, good low temperature performance, safe and fast charging and discharging, and can be used for peak and valley energy storage, wind energy, solar energy and other energy storage.

▲About EU tariffs and taxes
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2. The price displayed by the EU member states is the value-added tax added by the platform by default, and the value-added tax will be automatically deducted for orders greater than 150 euros (excluding freight). No value-added tax and customs fees are charged.

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Acum 57 minute, aureliu67 a spus:

Intrebarea mea este de ce nu sa vorbit nimic despre acest tip de baterii...

In ce context? Cine are nevoie de așa ceva nu stă să reinventeze apa caldă așa cum se întâmplă pe forum, le cumpără și le exploatează ca atare.

Utilizatorul @ionut120v a amintit de LTO in nenumărate rânduri dar nu mulți se încumetă la tot felul de experimente cu Litiu la asemenea capacități.

Nici LiFePo4 nu-i de neglijat dar nu știu ce am putea discuta prea mult mai ales pentru utilizarea in regim DIY.

 

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Tocmai am decomisionat cele 110 celule LTO 66160 de 40 ah la 2,3v deorece am inlocuit cu LFP de 320 ah din motive de incompatibilitate a plajei de de tensiune, LTO se cicla  putin in paralel cu LFP, nu beneficiam de enegia stocata in ea.

Acum am instalat doua siruri 40 s LFP in total 50 KWh utilizabil.

 

Pentru curiosi se vand la pret de SH performeaza apropape ca in ziua cand le-am instalat, nu a murit nici o celula  in 10 ani.

 

Ca termeni de comparatie din viata reala LFP se prezinta bine dupa 4 ani, Sodiu ion e aprope ca LTO in materie de temperaturi de functinare si rata de descarcare, dar dureaza doar doar 6 k cicluri pana la proba contrara, in plus sunt perfect compatibile cu cele cu plumb, am luat deja una pentru engine start si sunt foarte multmit, voi mai lua 4 celule de 210 ah pentru camere la o casa la munte deoarce merg pe frig.

Edited by ionut120v
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