Some observed progress in Lithium-Ion Batteries.

I have posted before about Lithium-Ion batteries. My relatively new Samsung Galaxy S9 Smart-Phone possesses one, and seems to have better battery performance overall, than my old Galaxy S6 did. Also, both these phones had a sensor chip which measures battery voltage. I use an Android app called GSam Battery Monitor Pro, to get occasional glimpses of what my battery is doing, and without such a hardware chip, the app would not be able to provide meaningful information. On my Galaxy S9 phone, the battery has a voltage of ~4.2V once fully charged, and I’m assuming that to plug the phone in just keeps it connected to a constant voltage source…

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On my previous, Galaxy S6, when fully charged, the battery had a voltage of ‘only’ ~3.7V. And so one strategy which Samsung could be using to increase battery life, would simply be to charge the same battery technology to a higher voltage. However, usually, doing so would only result in the battery catching fire. And so, some improvement in the actual design of the battery had to take place, so that it could be kept charged to 4.2V, and not suffer any immediate damage.

Dirk

 

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