Divided energy electrochemical cell systems and methods of producing the same

Abstract

Embodiments described herein relate to divided energy electrochemical cells and electrochemical cell systems. Divided energy electrochemical cells and electrochemical cell systems include a first electrochemical cell and a second electrochemical cell connected in parallel. Both electrochemical cells include a cathode disposed on a cathode current collector, an anode disposed on an anode current collector, and a separator disposed between the anode and the cathode. In some embodiments, the first electrochemical cell can have different performance properties from the second electrochemical cell. For example, the first electrochemical cell can have a high energy density while the second electrochemical cell can have a high power density. In some embodiments, the first electrochemical cell can have a battery chemistry, thickness, or any other physical/chemical property different from those properties of the second electrochemical cell.