I'm thinking about proposing a new way to look at EV Battery banks (as I
have messaged about previously here). And my thought is to not insist on a
prefect unfailing Voltage/Current matched battery bank and motor
combination, but rather to completely avoid parallel cells in favor of a
higher voltage (lower current) serial string, in which any discharged cell
is bridged out by the means of FET or Diode. The bank should have a paralle=
l
capacitor so that in occasions when there is less continuous current
required even a cell that cant participate in the current most of the time
can invest its energy into charge of this capacitor bank. The question I
have is, what kind of switching power supply architecture would be
recommendable to match lets say a 50V motor (BLDC or Asynchronous) which
would be fed by a 300V Bank that cant really supply the max. power current
of the motor?
How reasonable is it to hope that such an approach could actually be
beneficial and eliminate key problems of battery systems (matching,
balancing, cell failures).

Thanks guys for any enlightenment on the subject!
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