That seems to be a Li-ion battery with silicon added to the anode. My guess is this is not that, just incremental improvement; until recently, 14500 fell far short of the energy density of 18650. Now it's near parity, keeping in mind a smaller volume inherently means more weight in the metal housing.
@Showroom7561 @flashlight
That seems to be a Li-ion battery with silicon added to the anode. My guess is this is not that, just incremental improvement; until recently, 14500 fell far short of the energy density of 18650. Now it's near parity, keeping in mind a smaller volume inherently means more weight in the metal housing.