April 23, 2024

The first fully rechargeable carbon dioxide battery created

The first fully rechargeable carbon dioxide battery created

Researchers have introduced a prototype of the first lithium-carbon dioxide battery, which can be fully recharged over 500 consecutive cycles.

Lithium carbon dioxide batteries areattractive technology because they can potentially store seven times more energy than conventional lithium-ion. However, during their operation, carbon is formed, which is not recycled and gradually accumulates on the catalyst, which blocks its active centers, prevents the diffusion of carbon dioxide and startsdecomposition of the electrolyte in a charged state. Ultimately, this leads to the failure of the device.

In its experimental batteryScientists at the University of Illinois at Chicago have used new materials to encourage the thorough recycling of not only lithium carbonate, but also carbon. They used molybdenum disulfide as a cathode catalyst in combination with a hybrid electrolyte to help incorporate carbon into the cycling process.

During the tests, the battery worked effectively for 500 cycles with a fixed capacity of 500 mAh / g, which is much higher than previous designs.

This combination of materials forms a singlea multicomponent composite rather than individual products, which makes recycling more efficient. According to the team, thanks to the new combination, the prototype worked quite efficiently and for a long time so that this technology could be used in modern energy storage systems.

Researchers have begun to pay more attention to developments in this area, since just in August another team introduced the first iron-ion battery.