An introduction to the principles of lithium-ion batteries and the essentials for correct use of lithium-ion batteries

The truth about lithium ion battery Lithium ion battery is a kind of secondary battery (rechargeable battery), which mainly depends on the movement of lithium ions between the positive electrode and the negative electrode. During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes: during charging, Li+ deintercalates from the positive electrode, and the electrolyte is inserted into the negative electrode. The negative electrode is in a lithium-rich state; the opposite is true during discharge. It does not contain toxic and hazardous substances and is called a green battery. Lithium ion battery refers to the general term for batteries with lithium ion intercalation compound as the positive electrode material. The charging and discharging process of lithium ion 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 lithium ions. 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 battery, and the generated lithium ions move to the negative electrode through the electrolyte. The carbon as the negative electrode has a layered layout. 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. The essentials for the correct use of lithium-ion batteries 1. The essentials for the correct charging of lithium-ion batteries: master the time and prevent overcharging. Do the right thing at the right time. Of course, lithium-ion batteries have excellent electrochemical performance. However, there is a safety hazard in the city after any kind of thing deviates from the equilibrium state. 2. The essentials for the correct discharge of lithium-ion batteries: real-time charging to prevent over-discharge. The image effect of lithium-ion batteries is negligible, and there is no such thing as a deep discharge to eliminate the image effect. 3. The lithium-ion battery is properly maintained: the temperature is appropriate, and it is cold and heat-proof. When unused, lithium-ion batteries generally will not cause safety disturbances. The goal of daily care is to put the lithium-ion batteries in suitable conditions, thereby delaying the aging of the batteries. The appropriate conditions for daily care of lithium-ion batteries should be four words: ventilation and coolness. These four words should be followed regardless of whether the lithium-ion battery is independently idle or standby in electrical appliances. 4. The lithium-ion battery needs to be activated, but the lithium-ion battery has been fully activated after it is out of use, and the user does not need to activate the lithium-ion battery again. 5. It takes 12 hours to charge the lithium-ion battery for the first time. However, do not do this for the lithium-ion battery, and such an approach will affect the service life of the lithium-ion battery. 6. The most suitable charging condition for lithium-ion batteries is 25 degrees Celsius. If the temperature is too low, the charging speed of the lithium-ion battery will be slower, and if the temperature is too high, it will affect the quality of the lithium-ion battery. 7. Regarding the charging of lithium-ion batteries, within the range of inevitable current (1.5C~0.5C), increasing the constant current value of the constant-current and constant-voltage charging method cannot shorten the time to fully charge the lithium-ion battery. 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 post: What is the difference between polymer batteries and lithium ion batteries?