Lithium = ~3.2v
G+Al = ~2.7v
G+Al Battery, 2nd stage back up power and is only that, if even “considered” that. The “considered” part is due to circuit design, when the engineer is designing the circuit they design around an unwritten rule in the industry standard and that standard is around ~3.0v. Now….pending the Chip selected to handle the memory and RTC save off when power outage happens, most processes get down to ~0.8v(some, just using an average), before the battery can no longer save off to the internal memory.
“Graphene in Aluminium Ion Battery at ambient temperature cycling from 2.7V to 0.5V, 4.5 Coulomb (2.2A/g) charge rate.”
This bit of information really limits the G+Al battery for a lot of design considerations, because like I said engineers are looking for the “3.0v”. Even ifffffffff they know of this battery there are changes to the circuit design and even Firmware(I know a lot of people will say, “those are not big changes”, yeah you are right not big changes, but when the product line has been developed for 15 years on that 3.0v platform, that becomes a big change). I digress, so like I was saying. In design that CUTOFF voltage is huge, and by the looks of G+Al battery characteristics taking it to the 0.5v Cutoff will make this a win. They have to sell this to Computer Manufactures that is the only sector(there maybe other sectors that could benefit from this battery), that I see it could really benefit from this tech.
Stand Alone use, the G+Al battery is a complete waste of time and money. Given that most designs around stand alone devices design around ~2.0v to ~1.8v and if you look at the battery drain characteristics you will notice that it is around 150mAh/g, and Lithium coin cell(2032) is around 215mAh, and the lithium used in a 2032 coin cell is ~0.1grams(that’s insane, if you understand the power to weight ratio(energy density)).
Once again the Unwritten Rule in Design is 3.0v so they(GMGMF) misses out again on selection.
Hope this is easy to understand, if they market this baby right( and that is not my area of expertise) they could stand to win and put more money in to future development which would really help.
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