Li-Ion

[Dukai Zoltan]

Udv lista!

Lenne egy kerdesem:
Eddig azt hittem hogy ha egy LiIon cellat tulfeszultsegre kapcsolunk, 
peldaul a nevleges 4.2V helyett kap 4.3V-ot akkor tonkremegy. 
Valamekkora turesnek bizonyara kell lennie. 0.05V-ot emlegetnek minden 
adatlapban. Most viszont olvasom a motorola egyik PDF-jeben 
(motorola.dec.02.pdf) hogy:
"Ideally, Li-ion-based energy systems
are designed to be “lithium
friendly,” in which the maximum
normal operating voltage that the
power source can provide to the
charge-control circuit falls within the
fail-safe limits of the cell. For example,
if cells from a given manufacturer
can withstand being overcharged
to 4.75 V continuously without exceeding
their fail-safe limits, then a
lithium-friendly power source would
by definition be designed to limit its
output voltage to less than 4.75 V
(see Fig. 2)."

Ezek szerint egyes Li akkuk kibirak peldaul 4.75V-ot, vajon az atlag 
mennyit birhat ki? Ezekszerint megsem annyira szigoru ez a toltes eloiras???