Re: Batteries - EV Conversion

Jim Wilkins <muratlanne@gmail.com> wrote:

As you observed elsewhere, batteries are a more fundamental problem.
At energy/power densities approaching hydrocarbon fuels they take on
the character of rocket propellants. There's no easy remedy for that
problem, which few people anticipated. I certainly didn't.
 
Thanks for a most entertaining discussion!
 
bob prohaska
 
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What types did you look at?
 

My remark was intended to be at least somewhat humorous 8-(

Still, I think it's broadly correct. The higher energy/power
density batteries have been implicated in numerous mishaps if
news reports are to be believed. LiFePO4 is the sole exception,
at least to date, and much of the credit likely goes to BMS
behavior. A cellphone-sized battery is one thing, a multi-
KWH bank quite another.

Admittedly, people were terribly afraid of gasoline in the
early days of automobiles, and we got over it. Much of that
fear came from the ubiquity of open flames for illumination,
which was solved by electric lighting.

Perhaps better BMS and packaging designs can reduce the risk
from high-performance batteries. For now, it's a real worry.

bob prohaska