Did we not read the same article? Lithium Air batteries could offer up to 4x the energy density, this one is 2x. Part of the reason this hasn't been done befo

Did we not read the same article? Lithium Air batteries could offer up to 4x the energy density, this one is 2x. Part of the reason this hasn't been done before is that previously the oxygen introduced to the battery was from the air and other components of air damaged and degraded the battery rapidly. This battery is sealed with all the Oxygen it needs as a LiO mixture stored in a cobalt matrix to stabilize it. Thus is doesn't degrade.