A carbon-capture device that behaves like a rechargeable battery changes the engineering question: capture and release are paired steps, not a one-way filter. Reported by MIT on October 24, 2019, the system uses coated electrodes to take carbon dioxide from an air or gas stream while charging, then release a concentrated stream while discharging. It operates at room temperature and normal air pressure. [shared-d273bd5e35852ae13bb40fd7da165d602acc1abbe7a94bff4a38669e8e5912a9]
That cycle creates a possible operational advantage: paired cell stacks could alternate, keeping capture and release running in sequence where exhaust is continuous. But the evidence is laboratory endurance, not a commercial plant. The system survived at least 7,000 cycles with a 30 percent efficiency loss; estimates of 20,000 to 50,000 cycles were targets for improvement, not results. Verdox had been formed to commercialize the process, and a pilot plant was a future goal. [shared-d273bd5e35852ae13bb40fd7da165d602acc1abbe7a94bff4a38669e8e5912a9]
The next test would be a pilot-scale plant, which remained a future goal in the report. The laboratory results show how the capture-and-release cycle worked, but they do not establish sustained operation at commercial scale. The researchers described adding electrodes as a route to greater capacity; the retained account did not report pilot operating results. [shared-d273bd5e35852ae13bb40fd7da165d602acc1abbe7a94bff4a38669e8e5912a9]