Researchers at the University of Illinois at Chicago (UIC) have developed the world's first fully rechargeable lithium-carbon battery. It is understood that the two points that can be fully charged and can be stabilized in 500 cycles are equivalent to overcoming the two main obstacles of this technology. According to UIC, lithium-carbon dioxide is one of several battery technologies known to have potential performance and energy density. Its energy density can be seven times that of today's lithium-ion batteries, but it turns out that it is possible to maintain its stability by repeating cycles. questionable. This device is referred to as a carbon neutral long period lithium-carbon dioxide battery.
Solve the carbon accumulation process
A common problem with such batteries is that when the storage device is discharged, carbon on the catalyst builds up, causing the battery to fail quickly and fail. This battery technology was published in the "Advanced Materials" magazine. The first author of the paper, Alireza, said: "The accumulation of carbon not only hinders the active site of the catalyst, but also prevents the diffusion of carbon dioxide. Initiates decomposition of the electrolyte."
To solve this problem, the team used molybdenum disulfide nanoflakes as a cathode catalyst and ionic liquid dimethyl sulfoxide mixed electrolyte materials. It is hoped that this material will help to incorporate carbon into the recycling process and prevent the accumulation of performance damage.
Amin, an associate professor of mechanical and industrial engineering at UIC, said: "Our unique combination of materials helps to create the first carbon-neutral lithium-carbon battery, which is more efficient and has a longer cycle life."
Although the paper relies on theoretical calculations to describe the reversible operation of the battery, the research team seems to be very positive about the importance of this discovery. The abstract of the paper reads: "This achievement paves the way for the use of carbon dioxide in advanced energy storage systems."