Researchers have shown that a newly discovered set of materials can quickly charge batteries, increase the likelihood of smartphones being fully charged in a few minutes, and accelerate the investment of major clean technologies (environmental technologies) such as electric vehicles and solar energy application.
The speed at which the battery is charged depends in part on the speed at which the positively charged particles (called lithium ions) move to the negative electrode, which are then stored at the negative electrode. A major factor restricting the manufacture of fast-charging "super" batteries is the speed of movement of lithium ions in the ceramic medium.
One possible solution is to shrink each material material by using nanoparticles. However, the cost of nanoparticles is very expensive and the manufacturing process is complicated. Therefore, scientists have been looking for alternative materials to circumvent this problem.
At present, researchers at the University of Cambridge have identified a group of materials called "niobium tungsten oxide". Through this material, lithium ions can achieve ultra-high speed movement, which means that the battery can be quickly charged.
The study was published in the journal Nature, and its first author, Kent Griffith, said, "Nb-tungsten oxide is fundamentally different." This material was first discovered in 1965 and has a rigid, open structure, and has more Commonly used battery materials have larger particle sizes.
To measure the movement of lithium ions in these extraordinary media, the researchers used techniques similar to those found in MRI scanners. They found that lithium ions move through these materials hundreds of times faster than traditional ceramic electrode materials.
Another advantage of these alternative materials is that they are cheap and easy to manufacture. Griffith said: "These oxides are easy to manufacture and do not require additional chemicals or solvents."
Optimized batteries can revolutionize two environmentally friendly technologies, electric cars and solar grid storage.
The signature of this research, Clare Grey, said that the next step is to optimize the use of this material in the entire battery, which can be recycled within the time and miles required for electric vehicles. Clare added, "For example, people can quickly charge electric buses at the station."
Although Dan Brett, a professor of electrochemical engineering at University College London, did not participate in this work, he still expressed great appreciation for this discovery. "This discovery is exciting, especially its improvement on battery performance." , He said, "The real cleverness of this work is also the insight into a measurement mechanism that allows the measurement of the speed of movement of lithium ions through this substance."
Brett finally added: "The technology will further optimize these materials, so we can expect that in the future, [battery] power, energy and life will be improved."
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