On 26/05/2021 15:19, The Natural Philosopher wrote:
On 26/05/2021 15:09, Pancho wrote:
On 26/05/2021 13:21, The Natural Philosopher wrote:
On 26/05/2021 10:33, Pancho wrote:
On 26/05/2021 10:14, John Rumm wrote:

Funny you should mention that, but:

https://www.forbes.com/sites/michael...an-lithium-ion





Yep, that was a very interesting story. More interesting than
nuclear fusion stories.

I dunno how much is hype, but if not it could be significant. With
massively quicker charge times it might be possible to reduce
battery capacity too. Maybe charge at traffic lights etc, with smart
infrastructure.

Plus I hardly every drive more than 50 miles in one go.

Airliners hardly ever experience more than 1.5G loading.
Do you want to fly in one that *can't* experience more than 1.5G
loading without the wings folding?


I was recently looking at climbing equipment, generally specified as
safe up to loads of 25KN, I suspect I fell for the hype and cheaper
12KN would have been fine for me.

However car range is different.

There are two factors. The main factor of range is how often I'm
willing to stop to refuel. With Lithium Ion batteries the problem is
long charging times, people want bigger capacities because they don't
want to stop from an hour to recharge. If they can recharge in minutes
they would be more willing to stop.

That is just one problem. The other problem ins fundamental and insoluble.

How much extractable and viable lithium is there in the world?

If there isn't enough we will need another form of secondary energy
storage. They would not have revived and been hyping up 'hydrogen' if
there was any prospect that batteries would work.


Stop. No one sane is suggesting batteries for grid long term energy
store. The most they would be used for on the grid is very short term
smoothing.

Hydrogen is a possible candidate for long term (seasonal) energy store.
It is ballpark economic (i.e. within an order of magnitude).

When that doesn't work either, some bushy-tailed ArtStudent„¢ will have a
lightbulb moment and say 'why don't we make renewable diesel fuel?'


Biodiesel? It doesn't scale, but we do do it.

Which is precisely what I reckon will happen.

Burn that with *pure* oxygen and hey presto - no NOx!, just CO2 and
water. Collect the CO2 and water and feed it back to your syndiesel
plant...


A field of rapeseed? Or one of those fusion plants, that are on the
verge of being on the verge of... being very expensive.


The car battery analogy to your example is the power reserve I need to
get me to a recharging station in case of emergency. Where I live I
would expect recharging stations to be closely spaced, requiring
little emergency capacity.

But its the journey that is to somewhere that you *dont* live that is
the problem.


Eh? No, you have charging infrastructure.

Your argument is as circular as a long playing record


The are spirals, aren't they?