On 03/12/2020 18:30, Roger Hayter wrote:
On 3 Dec 2020 at 16:34:40 GMT, "Tim+" wrote:

The Natural Philosopher wrote:
On 03/12/2020 11:25, Tim+ wrote:
Tim Streater wrote:
On 02 Dec 2020 at 14:28:16 GMT, The Natural Philosopher

wrote:

That shows to me that there is a fundamental theoretical limit being
approached here. The chemistry we are using can't do any better.

Are there any other chemistries that have potential? If not, we are ****ed.

Its not all about the chemistry, the designs are being improve to increase
energy density and reduce charging time.

Energy density is ABSOLUTELY a function of the chemistry.

Chemistry AND cell design.

Do you think the surface area of the electrodes is irrelevant to energy
density of a battery?

Tim

That would be a bit second order - unless the first cells were designed really
stupidly.

Precisely,. It does impact on charge and discharge rates and there have
been significant advances in these over the last 16 years, but not
energy density.
Lithium polymer is a bit safer and pit higher power and a bit more
robust bit not one iota higher in energy density.,

It's as mature as an alkaline cell.

Lithium air promises better, but no one has made a commercially viable
safe unit yet.




--
"When one man dies it's a tragedy. When thousands die it's statistics."

Josef Stalin