Quote:
Originally Posted by JSH
I've not aware of any company using super capacitors in a production car. 48V systems have a motor/generator that replaces the alternator. That charges a 48V Li-Ion battery when the vehicle is slowing through regenerative braking and pulls power from the battery under acceleration. The motor can also be used as a regular generator on long flat sections without regen.
The 12V battery is charged from the 48V battery with a DC/DC converter.
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Here it is...
Mazda i-Eloop
It's available on some Mazda cars, or at least was.
So basically the same idea, except ultra capacitors instead of lithium ion.
I almost decided to get a LiFePO4 12V battery for my Avalon seeing how no parts store sells a 12V battery for the Avalon (really) and the OEM battery is over $300. However, the problem with lithium anything is it needs protection from the cold. So I ended up getting another OEM battery this Saturday for $326 at the dealership that's 60 miles away from here. (Ouch!) But ultra capacitors would seem like a suitable alternative for cold places. Either that or a heating system of some kind for lithium. I hate paying $300 for a lead acid battery.