Like I thought, you’re misunderstanding what you’re reading.
Yes current recycling processes can lose 4% of the material. But that’s not because they aren’t recoverable, that’s because it’s not currently financially feasible to recover it all.
And that’s just the recycling part. For someone suggesting that I should read better you sure aren’t great at reading either. So I’ll ask it again.
What part of the metal atoms degrade as part of them being used in batteries?
We don’t need to even do the math ourselves. It’s already be done countless times and the results are always the same.
BEVs over their lifespan in the worst case scenario produce less than half as much CO2 emissions than a similar sized ICE vehicle.
https://www.iea.org/data-and-statistics/charts/comparative-life-cycle-greenhouse-gas-emissions-of-a-mid-size-bev-and-ice-vehicle
https://www.energy.gov/eere/vehicles/articles/fotw-1357-august-26-2024-small-electric-suv-produces-52-fewer-life-cycle
https://www.epa.gov/greenvehicles/electric-vehicle-myths
https://climate.mit.edu/ask-mit/are-electric-vehicles-definitely-better-climate-gas-powered-cars
I’m surprised you struggled with this, with so many creditable sources available this was a really easy thing to look up.