Theoretically, self driving urban taxis significant reduce traffic jams, emissions, and accidents. This is all new and being tested in a couple of different cities now.
It is my belief as a conspiracist

that this is the ultimate goal of Big Brother and his desire to track your every move. The dregs will huddle aboard an electric bus with entry gained and tracked via implanted RF chip. The elites will gain entry into their self-driving pod in the same fashion...

This control scenario is far easier to implement with an EV.
But the narrative is that these batteries are "new and high tech" and "getting better."
I think for EV "technology" to become popular, there needs to be a way to service them. If they are a common, "easy" to obtain (and replace) cell, servicing will be simpler--KISS applies.
The most successful power tool batteries are the ones that fit many tools both new and old. I am using still available 10yo LIon 18v batteries in 20+yo tools. But a brand-new "brushless" will take the same 10yo battery. And if you open a battery, there are a number of cells linked together not unlike an EV module.
Monster Garage had an episode from 2006 where they put a shitload of Milwaukee tool batteries in a car/truck (I forget which). The only video of the episode I could find was the interview of the Milky engineer, who was one of the build team, predicting EVs would not catch on "in his lifetime" and he looked to be in his late 20s/early 30s.
So it would make sense that an EV use a commonly available cell that could be installed in a module that can be replaced as a unit individually from the pack. A technician can go and check each cell (yes, 100s of them

), replace the "bad" cells, and have a "rebuilt" module for a fraction of the price of a new one.
BUT, if the packs or modules are damaged through accident or extreme off-roading, and directly short out, then there will be fire not unlike an ICE vehicle.

EVs are generally more difficult to put out and require specialized training to do so. If the Fire/Rescue does not have that training, they will often sit back and watch them burn...

(see .pdf below)
Cut open your car battery and you'll find cells each with several individual plates.
12v lead-acid batteries consist of six 2.1v cells. A fully-charged battery will show 12.6v on the meter. Why they just didn't round up and call it a "13v" battery still baffles me...

(jk--they were obviously superstitious...

)