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Lithium metal battery with over 500 Wh/kg developed
(www.notebookcheck.net)
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this post was submitted on 13 Jul 2024
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Another problem is the increased complexity of fossil fuel vehicles, specifically in stuff like the engine, gears, pollution filters, etc. A fossil fuel vehicle is just intrinsically more complicated. Which doesn't directly relate to the density, but it gives electric vehicles an advantage.
Also no regenerative braking
Which is where hybrids have a huge advantage, getting the best of both worlds
The weight itself is an engineering challenge.
With passenger vehicles, the problems have largely been solved. With motorcycles, there are still some tradeoffs on range (especially highway). With large cargo trucks, the weight causes issues with range, weight capacity, and charging times. With aircraft, there's not really competition on the horizon.
And electrification of heat production itself for climate control, cooking, hot water, industrial processes, etc. is coming along, too, on an application by application basis. (But note that the energy "lost" to heat is less of a factor for these uses.)