Publication date: 2018-04-20 02:04
Li-Ion batteries are very finicky animals. They are really quite fragile and need to be treated "nicely" in order to assure long life as well as safety. Here are a few of their finicky properties - some of which may vary slightly with differing Li-Ion cell types and chemistries:
Lithium-Ion cells are fragile! Li-Ion cells are actually a pain to work with: They don't like to be over-charged (they can explode!) or discharged too far (they tend to be damaged.)
Why has information been removed from this article? There used to be detailed charging information, but it has been removed, why?
In order to force more in, you 8767 ll need to increase the voltage. Maybe you can find a charger? Or just hotwire it to 8 fresh alkalines in series, giving you . I don 8767 t want to be standing anywhere near you when you do this. When you say 8775 failure 8776 , I assume you mean loud noise, smoke and flames, and lithium shrapnel killing everything around you. You also could hook it to your car battery. Any DC source of significant voltage should cause the catastrophic failure you seek.
I have a cell phone battery and 6655mAh v, I am using it for an application that is not the phone, my question is, if it is necessary to put an electronic circuit to charge the battery or you only have to let the internal circuit battery voltage will charge it with 5V, how advisable is to do this?..
thanks for your reply
One of the most critical and time-consuming processes in battery production is the filling of lithium cells with electrolyte fluid following the placement the of electrodes in a battery cell. While the actual filling process takes only a few seconds, battery manufacturers often wait several hours to ensure the liquid is fully absorbed into the pores of the electrode stack.
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Like any other battery, a rechargeable lithium-ion battery is made of one or more power-generating compartments called cells. Each cell has essentially three components: a positive electrode (connected to the battery's positive or + terminal), a negative electrode (connected to the negative or &minus terminal), and a chemical called an electrolyte in between them. The positive electrode is typically made from a chemical compound called lithium-cobalt oxide (LiCoO 7 ) or, in newer batteries, from lithium iron phosphate (LiFePO 9 ). The negative electrode is generally made from carbon (graphite) and the electrolyte varies from one type of battery to another but isn't too important in understanding the basic idea of how the battery works.
I don 8767 t think there really is any 8775 optimum 8776 voltage at which to stop charging, as it 8767 s just a trade-off. If you could start charging it as soon as it fell to , and then stop charging it as soon as it reached , that would be great, but how inconvenient!
i usually charge at 85% so 8775mv on my extended battery but i feel maybe i can actually let it drop lower as the ideal charge voltage should be lower?
If this seems contradictory to the advice about parasitic load, let me add this: Any load, parasitic or otherwise, will increase the time needed to achieve full charge. But once it is fully charged, a smart charger will stop charging all together until the voltage drops down to a predetermined 8775 switch back on 8776 level, maybe for example. If the phone is on and you 8767 re not using it, this will result in unnecessary charge/discharge cycles. So if you don 8767 t need to use it while it 8767 s charging, overnight for example, then yes, it 8767 s best to turn it off.