If you get the same energy in 1/3 that space (but 2.5x the weight), you could ha...

		sgk284 on March 2, 2017 \| parent \| context \| favorite \| on: 94-year-old Lithium-Ion Battery Inventor Introduce... If you get the same energy in 1/3 that space (but 2.5x the weight), you could have a phone that is the same size as today but with 3x the time on a single charge in exchange for a battery that is 7.5x heavier. Phones are light enough that I'd probably make that trade.