Scientists find the reason for the shorter life of lithium batteries

American scientists have discovered the reason for the shorter life of lithium batteries. In a paper published in the latest issue of 'Science Advances' (Science Advances), American scientists stated that fluctuations in the concentration of lithium ions in lithium batteries can explain the longer life of lithium batteries. The reason is short, and may help to develop batteries that charge faster and last longer. A group of researchers led by the Brookhaven National Laboratory of the U.S. Department of Energy recently discovered that if the electrodes of the battery are made of nanoparticles, then when the battery has an electric current, the concentration of lithium ions in some of the nanoparticles will first rise. After falling, instead of rising as previously thought. Lattice is a structure in which particles in a crystal are arranged in a geometric order. The working principle of a lithium battery is to move lithium ions between the positive and negative lattices. When charged, they flow from the positive electrode to the negative electrode, and vice versa. Like a sponge, let us see that the concentration of lithium ions in nanoparticles is constantly increasing, said Wang Feng, a sustainable energy technology scientist who chaired the discussion at Brookhaven National Laboratory. But unlike water, lithium ions can be selectively removed from In some areas, the concentration of lithium ions is formed between the lattices. The researchers pointed out that before lithium ions enter the lattice, the structure of the lattice is very uniform. Once the lithium ions enter, the lattice will stretch, and when the lithium ions flow out of the lattice, the lattice will shrink. The uneven movement of lithium ions can be a long-lasting hazard because it can distort the structure of the active ingredients in the battery and can cause fatigue and failure. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to charge a new mobile phone battery?