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Batteries for smartphones usually last a day to a day and a half. Is Li-on the best you can get?
ie it has to be moving all the time by its very nature.
so how do batteries work? does the device just use them to generate electricity?
by the 'exchange' of electrons (although electrons are not really units that just get swapped over) ....then when there is an electrically conductive connection made between the chemicals with different charge, then there is a net flow of charge between them.
Capacitors are used to store charge temporarily within circuits, but these soon 'drain'
I am sure that there are far far more modern improved views of it, just wait a dis you has done physics will pop along soon and give a much better explanation
(cos they is -ve)
I must admit I thought that the view of imagining little electrons flowing like minature particles had changed
but it might not be entirely appropriate to see it as a flow of particles, rather as a net flow of charge
Over a day for an always-on telecommunications device with internet access/media player/camera seems like quite an achievement to me. Can't say I wouldn't like longer, but I still find the whole thing pretty impressive.
as technology involving circuits/chips has been constantly minuturising and increasing storage due to this miniturisation, to go with this extra layers of 'code' can be put into the devices making them more function rich....these layers can be built up by throwing man hours at them.
When it comes to batteries they have made some improvement, but the essential issue is that you have to find ways to make chemicals have more variance in possible charge......which is limited due to the nature of chemicals electrical bonds.....sure they can also reduce charge leakage but that is also limited .......arnt most bateries got some lithium now? ....expensive to extract? I don't know