indeed it is still unclear what's going to emerge as the next-generation design not just for devices, but also EVs and large-scale energy storage. Energy harvesting will definitely change the way we look at engergy sources in modern times.
I agree, naperlou. I don't believe lithium-ion will ultimately offer the answer. Most material scientists say that they expect it to top out between 175-200 Wh/kg, and we are rapidly approaching those numbers. The reason, they say, is that batteries typically don't exceed 40% of their theoretical specific energy, and lithium-ion is already there. For now, it looks like lithium-sulfur will be a better bet. In the long run, maybe lithium-air.
Elizabeth, this is a very interesting set of technologies. While, as your last slide shows, lithium-ion may be improeved to be a viable contender in the long run, I firmly believe that the winner will be another technology. We will see. It is good, and important, to see that other technologies are being pursued. I especially like the GE approach as it seems that it would be much safer. This is an important condideration. I wonder if it will be lighter, though.
Perhaps no area of research today is as ripe with innovation and new designs as batteries, but it's still unclear what's going to emerge as the next-generation design not just for devices, but also EVs and large-scale energy storage. It certainly won't be a one-size-fits-all situation, but some designs must emerge at some point as those that provide the best fit for the particular job and are commercially viable. Energy harvesting, too, is muddying this field of research and will certainly augment some of these new designs as well.
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