While this doesn’t seem so to many, there is a gradual development of lithium batteries and an increase in their energy density. Agency NanoGraf for example, last year it introduced record-breaking 18650 cells with a capacity of 3800mAh. You won’t find them in regular stores here, you can get a maximum of around 3500mAh there. These cells achieved an energy density of 800 Wh / l. But this too has already been overcome. The company has managed to push item properties a little further and now introduces the if models 4000 mAh.
Their energy density has thus reached 810 Wh / l, also thanks to their anode, which uses silicon mixtures. This is now a fairly common improvement on many lithium-ion-type storage batteries, although it also comes with its own pitfalls. The new version only removes some and should be more stable than the previous generation. The question is how accessible these accumulators will be (although we can find a lot of press about the company, but we will not find the batteries in stores, so if they are on the market, they will most likely only be for selected partners who co-finance the development).
It should also be noted that the company has been awarded a military contract in the amount of 1 million dollars to develop even better 4.3 Ah batteries of the 18650 type, which should also reach 870 Wh / l with density. But they won’t go into production until 2024. Ford, General Motors and Stellantis have also invested in the company.