MIT researchers are developing a battery that could both capture carbon dioxide in power plant exhaust and convert it to a solid ready for safe disposal.
Reducing carbon dioxide (CO2) emissions from power plants is widely considered an essential component of any climate change mitigation plan. Many research efforts focus on developing and deploying carbon capture and sequestration (CCS) systems to keep CO2 emissions from power plants out of the atmosphere. But separating the captured CO2 and converting it back into a gas that can be stored can consume up to 25 percent of a plant’s power-generating capacity. In addition, the CO2 gas is generally injected into underground geological formations for long-term storage — a disposal method whose safety and reliability remain unproven.
A better approach would be to convert the captured CO2 into useful products such as value