When id Software co-founder John Carmack discussed electric vehicle battery materials on Twitter, none other than Tesla, Inc. TSLA CEO Elon Musk chimed in with his view.Carmack, a computer programmer and video-game developer, said when he looks at electronics with weakening batteries, he wonders about the potential of bulkier lithium iron phosphate (LFP) batteries. These have 40% less energy density but ten times the lifespan, he noted.Energy density is the amount of energy in a given mass, and in a battery, it is the measure of the amount of energy that a battery contains in relation to its weight. LFP batteries are supposed to have about 15-25% less energy density than alternatives.Carmack pointed out that there isn’t much demand for ten-year lifespan consumer electronics. “Of course, easily replaceable batteries can also address the problem1,” he added.See also: Did Elon…
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