Carbon Dioxide Battery Breakthrough
Researchers unveil a prototype of the first lithium-carbon dioxide battery that can be fully recharged for 500 consecutive cycles.
Lithium-carbon dioxide batteries are an attractive technology because they can potentially store seven times more energy than conventional lithium-ion batteries. However, in the course of their operation, carbon is formed, which does not recycle. and gradually accumulates on the catalyst, which blocks its active centers, prevents diffusion of carbon dioxide and triggers the decomposition of the electrolyte in a charged state. Ultimately, this leads to the failure of the device..
IN In their experimental battery, scientists at the University of Illinois at Chicago used new materials to stimulate the meticulous 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..
In tests, the battery operated efficiently for 500 cycles at a fixed capacity of 500 mAh / g, far exceeding previous designs.
This combination of materials forms a single multi-component composite rather than separate products, making recycling more efficient. According to the team, thanks to the new combination, the prototype worked efficiently and long enough for this technology to be applied in modern energy storage systems..
Researchers began to pay more attention to developments in this area, since literally in August, another team presented the first iron-ion battery.
text: Ilya Bauer, photo: anousparis
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