Lithium-ion battery production process flowchart

Source: 2020 - 03 - 26 13:06 hits: lithium ion battery manufacturing technology the basic principle of lithium ion battery 1. How to choose the energy carrier of the first, you may ask, why is the lithium? We don't want to go back to chemistry, but we must find the answer to the question to the periodic table, is good, do you remember the periodic table, right? ! I really don't remember it now. Let us take time to look at the list below. To become a good energy carrier, you'll need the volume and weight of the less as possible to store and transport the energy as much as possible. Therefore, we need to meet the following basic conditions: the quality of the atomic smaller 2) Strong ability of gain or 3) Electron transfer rate is higher based on the basic principle of the three, on the top of the periodic table of elements is better than the bottom, the left elements than on the right side of the good. For preliminary screening, we can only be found in the periodic table of the first and second cycle material: hydrogen, helium and lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon. After removing the inert gas and oxidant, only hydrogen, lithium, beryllium, boron and carbon. Hydrogen is the best energy carrier in the nature, so the study of hydrogen fuel cells, the hing what shall has wide development prospect in the field of battery. Can, of course, if the fission technique in major breakthroughs were made in the coming decades, such as miniaturization, miniaturization, even so portable fuel cell development space will be enormous. Then the lithium, lithium is chosen as the battery is based on the earth today we can find all the elements of the relatively optimal solution ( Beryllium reserves are low, it is a rare metals) in the rare metal 。 In the field of electric vehicles, hydrogen fuel cell and lithium ion battery is battle raged between, perhaps because the two elements are now can we find a better energy carrier. Lithium ion battery manufacturing process is complicated, here simply introduce some key technology. According to different plate assembly method, the usually has two kinds of winding and hierarchical process route. Lamination process is the positive and negative electrodes are cut into small pieces, and isolation membrane laminated form small cell monomer, then small cell stack monomer and parallel to form large cell manufacturing process. General process is as follows: winding technology is to is anode sheet, isolation film, are anode materials such as ear, protection, termination and fixed on the device, after equipment to complete production of the battery. The appearance of the lithium ion battery common mainly cylindrical and square, according to the shell material, metal shell and plastic shell.