Scientists find a reliable reason for the shorter life of lithium batteries

Scientists have found a reliable reason for the short battery life: the rise and fall of the concentration of lithium ion stars. A paper published in the latest issue of 'Science Development' by American scientists stated that the lithium ion concentration in lithium batteries fluctuates greatly. This explains the shorter lifespan of lithium batteries and may help develop batteries that charge faster and have a longer lifespan. A research team led by a Ph.D. from the Brookhaven National Laboratory of the U.S. Department of Energy recently discovered that when the battery has current, the concentration of lithium ions in the nanoparticles rises and then falls. If the battery's electrodes are made of nanoparticles, instead of continuing to add as previously thought . Lattice is a structure in which particles in a crystal are arranged in 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. Similar to sponges, let us see that the concentration of lithium-ion nanoparticles is constantly being added. The research of the Brookhaven National Laboratory can continue, said Wang Feng, an energy technology scientist, but with water, lithium ions can be selectively in some areas. Lithium ion concentration is the inconsistency between the formation of 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, they stretch the lattice. When lithium ions flow out, the lattice shrinks again. The uneven movement of lithium ions will cause the deformation of the active component structure in the battery, resulting in long-lasting damage to the battery, and may lead to fatigue failure of the battery. Researchers speculate that this phenomenon may also occur in other high-performance battery chemistries, and this discovery may help develop batteries with shorter charging times and longer standby times. 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: Common sense of battery safety caused by the sudden explosion of the remote control