Robert Bosch, LLC
For a Li/O2 battery system to achieve a high energy per mass and volume and thereby enable long-range electric vehicles, a technology is needed to handle the gases entering and exiting the cell. Such a technology should be light weight and compact and both supply contaminant-free O2 during discharge and prevent the loss of any volatile cell components during charge. While the highest energy per mass and volume may ultimately be obtained with a technology that allows the use of ambient air, another option is the use of an oxygen tank, which would create a completely closed system. In this talk I will give an overview of the requirements for gas handling in a Li/O2 battery system, including acceptable mass and volume as well as energy use. Calculations for an oxygen tank will be presented.