Abstract: A carbon-oxygen battery system, including: a Boudouard reactor in fluid communication with an electrochemical cell, wherein the electrochemical cell has a CO/CO2 inlet, a CO/CO2 outlet, and an oxygen outlet, and wherein the CO/CO2 outlet is fluidly connected by a first stream to an inlet of the Boudouard reactor, and wherein the CO/CO2 inlet is fluidly connected by a second stream to an outlet of the Boudouard reactor; and a CO/CO2 tank fluidly connected to at least one of the first stream or the second stream.

Abstract: Systems, methods, and devices of the various embodiments may provide control and/or sensing circuit configurations for electrochemical energy storage systems, such as metal-air battery systems. Various embodiments may include systems, methods, and devices supporting terminal switching between a charge cathode and a discharge cathode of a metal-air battery, bypass switching for the metal-air battery, and/or electrolyte low level detection for the metal-air battery.

Abstract: Systems, methods, and devices of the various embodiments may include battery string arrangements for power systems, such as dynamic battery string configurations, inter-module connections, and other configurations.