Fun fact: The human battery thing is actually a retcon the Wazowskis did at the last moment because they thought the American public would be too stupid to grok the actual understanding of the Matrix.
Humans are an entropic species, they consume more energy than they produce - any synthetic race that tried to harness energy from a net negative energy producer is an idiot.
What the Matrix is, is actually a distributed simulation MATRIX that uses individual human brains as nodes in a shared, hallucinogenic dream, indistinguishable from reality.
The real simulation isn’t so primitive, it doesn’t require people to be popsicle tubes in some crazy dystopian cyberpunk black and red tower attended by insectoid robots.
Instead the entire universe is contained on a single state machine, compromising a [redacted] amount of memory, running in [redacted]. Simulants are never aware of being inside of the simulation, except for rare instances where outsiders occasionally post on Lemmy.
Why they do that, we don’t know. We suspect that it is [all further content redacted].
Disagree on inefficient.
Internal combustion engines in standard small size convert 19.65-22.1% of their energy from thermal to kinetic.
The ratio of electron throughput from battery to electric motor can be as LOW as 88% but hovers between 92-98% efficiency.
Even if you had a fuel cell in the back, running electric motors quintuples (5×) the standard energy efficiency owing to the principle of energy quality type preservation in conversion (High to High vs Low to High):
https://en.wikipedia.org/wiki/Energy_transformation
So 1 electric car = 4 less carbon liquid fuelled cars worth of pollution.
What you’re actually looking for is:
https://en.wikipedia.org/wiki/Jevons_paradox
Jevon’s Paradox states that improved efficiency of something will only increase its use, and in this case, electric cars will in fact, correlate to car use, and increased mineral demands.
This is a problem you cannot solve endemic to humanity.