Analysis of the future development direction of lithium-ion batteries

The development of lithium ion batteries Lithium ion batteries are a kind of work that relies on the transfer between the anode and cathode of lithium ion rechargeable batteries to charge and discharge. When the battery, the movement of lithium ions is generated actively through the electrolyte anode, and the lithium ion cathode is embedded in carbon. The more layers, the higher the battery capacity. At the same time, when the battery is discharged, the positive movement of lithium ions on the cathode carbon layer and the movement of lithium ions to the anode, the greater the flow, the greater the flow. Lithium-ion batteries, commonly referred to as lithium-ion batteries, are used in mobile phones and laptop computers. Lithium-ion batteries can easily be confused with lithium-ion batteries. The important difference is that they use different materials. Lithium-ion battery is a kind of metal lithium as the negative electrode. Due to the huge danger of actual lithium-ion batteries, they are rarely used in daily electronic life products. The positive electrode of a lithium ion battery is manganese dioxide or thionyl chloride, and the negative electrode is lithium. During the charging and discharging cycle, lithium is easy to form crystals, leading to short circuits inside the battery. After the battery is assembled, the battery will have voltage and does not need to be charged. The battery can also be recharged, but the cycle performance is poor. Early lithium-ion batteries are generally not rechargeable. On the basis of lithium-ion batteries, Sony invented a lithium-ion battery that uses carbon materials as the negative electrode and lithium-containing compounds as the positive electrode. During the charging and discharging process, there is no metallic lithium, only lithium ions. This is a rechargeable lithium ion battery. The working principle of a lithium-ion battery refers to its charging and discharging principle. When the battery is charged, lithium ions are generated on the positive electrode of the battery, and the generated lithium ions move to the negative electrode through the electrolyte. The carbon as the negative electrode has a layered structure. It has many micropores. The lithium ions that reach the negative electrode are embedded in the micropores of the carbon layer. The more lithium ions are inserted, the higher the charging capacity. In the same way, when the battery is discharged (that is, the process when we use the battery), the lithium ions embedded in the carbon layer of the negative electrode are released and move back to the positive electrode. The more lithium ions that return to the positive electrode, the higher the discharge capacity. What we usually call battery capacity refers to the discharge capacity. It is not difficult to see that during the charging and discharging process of lithium-ion batteries, lithium ions are in a state of movement from positive electrode to negative electrode to positive electrode. If we compare the lithium ion battery to a rocking chair, the two ends of the rocking chair are the two poles of the battery, and the lithium ion is like an excellent athlete running back and forth on the two ends of the rocking chair. Therefore, the experts gave the lithium-ion battery a lovely name, rocking chair battery. Lithium-ion batteries have the advantages of light weight, large capacity, and no memory effect, and can be used to charge mobile phones at any time. Therefore, many digital devices today are powered by lithium-ion batteries. Lithium-ion batteries have a high energy density, their capacity is 1.5 to 2 times that of a nickel-hydrogen battery of the same weight, and the self-discharge rate is very low. In addition, lithium-ion batteries have almost no memory effect and no toxic substances, which is an important reason why lithium-ion batteries are widely used. 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: Is lithium ion battery environmentally friendly?