How do lithium batteries charge and discharge?

Lithium ion is a battery that uses materials containing lithium as the electrode, and it is a representative of modern high-function batteries. At present, the mobile phones, laptops, digital cameras, etc. we use all use lithium batteries. Lithium battery is a rechargeable battery, which depends on the movement of lithium ions between the positive electrode and the negative electrode. Usually people call the process of lithium ions entering the positive electrode material as intercalation, and the process of leaving it is called deintercalation; the process of lithium ion entering the negative electrode material is called penetration, and the process of leaving it is called deintercalation. Lithium batteries are developed from lithium batteries. Many people’s misunderstanding is that there is metal lithium in lithium batteries, but they are actually compounds of lithium ions. This compound used on the positive electrode can analyze lithium ions when charging, and the battery uses carbon materials as the negative electrode. The process of lithium ion insertion and separation from the positive electrode compound is the process of battery charging and discharging, and this process is accompanied by the insertion and separation of the same amount of electrons as lithium ions. How do lithium batteries charge and discharge? The operating principle of lithium batteries refers to the principle of charge and discharge. 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. Lithium ions cannot penetrate during the charging process; overcharging causes too much lithium ions to be inserted into the carbon structure of the negative electrode, and part of the lithium ions cannot be released anymore. During the charging and discharging process of lithium batteries, lithium ions are in a state of movement from positive electrode to negative electrode to positive electrode. If we compare the lithium battery to a rocking chair, the two ends of the rocking chair are the north and south poles of the battery, and the lithium ion is like an excellent athlete running back and forth between the two ends of the rocking chair. Therefore, the experts gave the lithium battery a beloved name rocking chair battery. Lithium battery discharge: the process of discharging is opposite to that of charging. The lithium ions in the negative electrode leave the small holes of the carbon material and return to the positive electrode. The more lithium ions return to the positive electrode, the more battery power is used, and the less power remains. Lithium battery charging: The process of charging is the process of the generation and movement of lithium ions. A lot of lithium ions appear in the compound of the positive electrode of the battery. After entering the electrolyte, the lithium ions move from the positive electrode to the negative electrode. The negative electrode of a lithium battery is made of carbon materials, and the lithium ions that reach the negative electrode will be embedded in the small holes of the carbon materials. The more lithium ions that the carbon materials can contain, the greater the amount of electricity the battery can contain. It is often referred to as capacity (mAh). 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: How to choose lead-acid batteries and lithium batteries