flynfrog wrote:mzso wrote:flynfrog wrote:I'm sorry you don't understand basic math I feel its not possible to continue this discussion.
maybe try reading this to understand that the 5-8% is correct regardless of the technology of the day.
http://en.wikipedia.org/wiki/Compound_interest
It's not the numbers that are problematic, but rather that you talk BS.
so to clarify you don't believe:
There is a hard physical limit for battery capacity
the data set for battery energy density by year and think I made it up
there is a max limit for how much energy a solar cell can harvest.
there is a max semiconductor junction size
If you are going to call BS try backing it up.
How about not putting words into my mouth...
Batteries have a hard limit. We just don't know what it is. For now it's 5210 Wh/kg (18.75 MJ/kg) which would be even better than the 46MJ/kg for petrol knowing that the typical efficency is 20-25% for ICEs and could be 80-90%+ for EVs.
That yearly percentage is nonsense. Batteries are not CPU. You can't just constantly improve them.
No hard limit was identified so far for solar cells. Actually at Caltech they produced experimental nanowire solar cells that capture 85% of the whole solar spectrum.
The junction size is irrelevant. They use multi-junction to grab more of the solar spectrum. The record is near 50% now for multi junction solar cells.
The very first, you should try and back up your claims. (Most of it you can't because it's nonsense).