Recently, a team of Pennsylvania State University developed a device that uses the difference in carbon dioxide emissions from fossil-fueled power plants and the concentration of carbon dioxide in the ambient air to charge the battery. The device is called a “flow unit†and works on the principle of dissolving carbon dioxide emissions in an aqueous solution and using the concentration difference between carbon dioxide in the ambient air to generate electricity. It produced an average power density of 0.82 watts per square meter, which is nearly 200 times higher than the value obtained from a similar method. The researchers first dissolved the carbon dioxide gas and the surrounding air in an aqueous solution container. This process was called spraying. In this process, the carbon dioxide spray solution forms bicarbonate ions and thus has a lower pH. Afterwards, the researchers injected the two solutions into the two channels of the “flow unit†to create a pH gradient, while the two channels placed opposite electrodes with a semi-porous membrane between the channels to prevent the gas from mixing immediately and allow the ions to pass through. . The difference in pH between the two solutions allows various ions to pass through the membrane, causing a voltage difference between the two electrodes, causing electrons to flow along the wires connecting the electrodes. When the “flow unit†is discharged, the channel can be opened to let the liquid flow recharge. Baffle Plate,Heat Exchanger Baffle Plate,Alloy Baffle Plate,Stainless Steel Baffle Plate YUHONG HOLDING GROUP CO.,LIMITED , https://www.alloypipeline.com