How is the current development of ultra-thin batteries

1. In terms of ultra-thin lithium batteries, due to the limitations of the raw material characteristics of the lithium batteries themselves, the thickness of lithium batteries is generally in units of several millimeters. With the continuous improvement of lithium battery processing technology, the current ultra-thin lithium battery can be less than 1 mm. For the current Grip battery, after years of processing and research and development, the processing technology is continuously improved and innovated. The thinnest battery can reach 0.4mm, and the shape and size can be customized on demand. At the same time, the ultra-thin lithium battery can also have a certain degree of curvature. In terms of energy density, under the same competitive product, the same shape and size, it has a higher capacity and discharge capacity, and a longer battery life. Of course, the demand for high-rate discharge can also be achieved. Ultra-thin lithium battery 2. New type of bendable and winding thin battery In order to solve the battery life problem of smart devices, let the light and thin appearance and super battery life have both. According to media reports, with the development of battery technology in recent years, it has been invented to be able What is the detail of a battery that can be folded while deforming? Let's take a look. New type of bendable and winding thin battery (1) South Korean researchers invented a battery as thin as a piece of paper, bringing hope to wearable devices to break through the battery bottleneck. At the same time, because the battery has good flexibility, it is also called a paper battery. According to analysis, the processing material of the paper battery is mainly from wood. First, the cellulose is extracted from the wood, and then the cellulose is separated into one-tenth the size of the hair, and this is used as a raw material to make a lithium electronic battery. The poles and diaphragm. Because of the material, the battery is really the same as a piece of paper and very soft. Even if it is folded into a thousand paper cranes, it can still work as usual. This performance makes it possible to install it in more complicated equipment in the internal space. In terms of performance, battery heating is also a common problem, but this paper battery overcomes this point very well, not only does not generate heat, but also has improved safety performance, and its service life is more than 3 times that of ordinary batteries. Knowing from the above, the advantages of this battery are clear, and it is a good choice for smart devices. At the same time, the birth of paper batteries means that future smart devices will have the characteristics of a thin and light body and super battery life. (2) The research team from the Swiss Federal Institute of Technology in Zurich (ETHZurich) finally replaced all the internal structure of the lithium battery with a new material that can be bent and twisted, making the world's first piece of material that can be bent at will. The stretched lithium battery is a foldable solid-state lithium battery that is also made in accordance with the sandwich structure. The so-called solid-state lithium battery means that the electrolyte used to transfer lithium ions in the battery is not a solution of organic solvent and lithium salt mentioned above, but a solid, which is a special type between liquid and solid. Substance hydrogel. Hydrogel is a hydrophilic three-dimensional polymer network structure gel. On the one hand, it has rubber-like properties and has a large number of cross-linked organic polymer chains. The chains are often cross-linked by covalent bonds, hydrogen bonds, or electrostatic forces. The hydrogel selected by Chen Xi is cross-linked by the most powerful covalent bond. When stretched, although each polymer chain will be elongated, the molecular chains are due to strong covalent The existence of the key without relative slippage. When the tension disappears, the polymer chain shrinks and the object returns to its original shape. Without the use of such covalent bonds, the slippage between chains during the stretching process will eventually cause the material to break and cannot be restored. On the other hand, the hydrophilic nature allows the hydrogel to carry a lot of water. The researchers dissolved the high water-soluble lithium salt in an appropriate proportion into the water of the hydrogel. Of course, this battery technology still has a long way to go before it enters large-scale commercial use. 1. The performance of this battery technology is not comparable to that of mature commercial batteries, and the energy density must be significantly improved; 2. This battery technology must continue to optimize the control of charging and discharging and improve the packaging process to extend its cycle life; 3. This battery technology wants to reduce the cost of the battery. As the world's first bendable full battery, the cost of some of the materials they use is still relatively high, and it is difficult to compete commercially with mainstream batteries. 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: Why do electric vehicles spontaneously ignite