The working principle of lithium battery and maintenance coup

The working principle of lithium battery The charging and discharging process of lithium battery is the process of Li+ intercalation and deintercalation in the positive and negative materials accompanied by the absorption and release of energy. Charge the lithium battery: Li+ is deintercalated from the positive electrode material, reaches the negative electrode through the electrolyte, absorbs electrons, and is embedded in the negative electrode material to form a higher energy intercalation compound. Lithium battery is a kind of rechargeable battery, which relies heavily on the movement of lithium ions between the positive and negative electrodes to work. During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes: when recharging the battery, Li+ deintercalates from the positive electrode and inserts into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Generally, batteries that use materials containing lithium as electrodes are representative of modern high-performance batteries. The charging and discharging process of lithium batteries is the process of intercalation and deintercalation of lithium ions. In the process of intercalation and deintercalation of lithium ions, it is accompanied by the intercalation and deintercalation of electrons equivalent to that of lithium ions (the positive electrode is usually represented by intercalation or deintercalation, and the negative electrode is denoted by insertion or deintercalation). During the charging and discharging process, lithium ions are intercalated/deintercalated and intercalated/deintercalated back and forth between the positive and negative electrodes, which is vividly called the rocking chair battery. When the battery is charged, lithium ions are generated on the positive electrode of the lithium 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 reaching the negative electrode are inserted into the micropores of the carbon layer. The more lithium ions are inserted, the higher the charging capacity. Similarly, when the battery is discharged, 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 returned to the positive electrode, the higher the discharge capacity. [Lithium battery charging method] Lithium battery has no memory effect. The best way to use lithium battery is to charge as you use it, without waiting for full discharge; charging frequency is not a problem, it is the depth of the charge and discharge cycle that affects the life. The best maintenance method is light use, shallow charge and shallow discharge. This is similar to the use of mechanical equipment. The greater the frequency and the number of times it is used, the faster the battery will wear out. The lower the degree of deep discharge of the lithium battery, the longer the use time. If possible, try to guard against frequent full charge and discharge. As far as the user is concerned, it is best to charge your battery after 10% or 20%. It is okay to charge when the remaining power is 50%, but try to be alert to start charging when the power is insufficient, and do not run out of battery power under any circumstances. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous: How to make good use of the laptop's lithium battery?