On the achievements of the common development of two technologies of 3D printing solid-state battery
3D printing, also known as additive manufacturing, is a promising rapid prototyping technology in recent years. At the same time, it is also a technology often used in mold manufacturing, industrial design and other fields. Battery, as a common energy carrier, is considered to be one of the inventions that change people's life. Today, seeking a breakthrough in battery technology is still an important direction to realize the development of science and technology. So what kind of spark will be triggered when 3D printing "touches" the battery?
Recently, Japanese researchers have developed a technology for making all solid-state batteries with 3D printers. It is reported that the battery can be manufactured in only a few hours by using this technology, and there is no high-temperature process in the process. The produced battery can also pass various performance tests to meet certain practical requirements.
The more important significance of this technology is that it may help the battery to achieve a technological breakthrough. As we all know, the main components of the battery are electrode and electrolyte, and the electrolyte is usually liquid, so it is accompanied by hidden dangers such as liquid leakage, work fire and so on. In order to solve these problems, a new battery was kicked out - all solid state battery. As the name suggests, the characteristic of all solid-state battery is that the electrolyte of the battery is also solid, so it is safer. At the same time, it can also increase the power storage with the help of stacking.
However, there are many problems. Because the electrolyte of all solid state battery is solid, in order to achieve the bonding between electrode and electrolyte, it is necessary to strongly press the electrode and electrolyte materials. Generally speaking, this process needs the help of high temperature and high pressure. Therefore, the heating process needs to cost very high, and the yield will be reduced with the risk of thermal cracking, At the same time, the influence of the product itself on the temperature change will be particularly obvious.
These problems also make the all solid state battery fall into a development contradiction. On the one hand, due to its ideal characteristics, all solid state battery is considered to be an important opportunity for future power storage related technologies. A series of emerging technologies, including pure electric vehicle life, may achieve some breakthroughs because of it; On the other hand, the high cost and processing difficulty limit its development in civil products, which also limits the development of this technology.
The 3D printing battery, to a certain extent, realizes the production possibility of all solid-state battery in normal temperature environment. In other words, it meets the two purposes of reducing production cost and production difficulty at the same time.
Of course, from the current achievements, there are still some problems in the technology of realizing battery production by relying on 3D printing, such as the energy density of the positive electrode, charge and discharge life, but it provides a certain possibility for the development of the battery. As far as 3D printing solid-state battery is concerned, it can be regarded as a phased achievement of the development of 3D printing technology, especially consumables, and battery technology.
