Friends who are familiar with the development of lithium battery technology will not be unfamiliar with the needle -shaped structure of Zhijing. Although the energy storage potential of lithium metal batteries is 10 times that of the current lithium -ion battery, in the process of charging and discharge, lithium ions will move back and forth between the battery bipolar and let the lithium atom accumulate on the electrode. After a period of time, the spikes called Zhiban will break the battery composition, causing the battery to suffer short circuit and failure.
So far, a lot of research teams in the world have poured a lot of effort to prevent Zhizhou from generating this matter. In order to make lithium metal batteries step by step to reality, we have seen various creative potential solutions to solve this problem -such as using ultra -thin lithium, nanotinus film, and self -assembly protective layers.
Scientists at the University of Schitille, the University of Schitille, Germany, trying to fight the production of Zhiban by using new carbon membranes with fine -tuning holes, and this carbon membrane can affect the transportation of ions in a correct way.
The pore diameter of this carbon membrane is less than 1 nanometer. Because the opening is smaller than the critical nuclear size, it can prevent the formation of Zhi crystal. At this time, the lithium cannot form a crystal structure, but is used as a smooth film, and it is deposited on anode. After comparing this battery design, the research team found that the battery of its life span was doubled, and there were no signs of the growth of chinetic crystal in hundreds of charging cycles.
The current problem is how to introduce this carbon film into the actual battery manufacturing process. Compared with other components of the battery, the attention of the diaphragm material has always been less. The nano -class two -dimensional membrane displayed and displayed in the new studies has already had a fascinating influence on the battery life.