| Limits in the Chemical Nature of Batteries
...in relation to the 'energy density' subject I mentioned above, I found this quote by some analyst...I can't remember where
The Limits of Nature
In technological terms, there is a natural limit on the amount of energy per gram that can be stored in a battery. This limit is defined by the size of the chemical materials employed and the strength with which they bind their electrons. The targeted use of innovative chemical elements could enable, at most, a tenfold increase in this limit relative to today’s lithium ion cells.
However, hundredfold or greater improvements are not possible due to the laws of nature. Higher energy density can be achieved in nuclear batteries, which derive their power from the radioactive decay of isotopes. As a result, nuclear batteries can constantly emit energy for up to 20 years. This principle has long been recognized and was already applied in the 1950s and 60s in satellite technology. In this area too, nanotechnology has paved the way for some remarkable advances.
Consequently, the more widespread use of such energy storage devices across a range of applications is becoming more tangible.
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