What are the advantages of secondary lithium batteries?

This circuit is mainly composed of lithium battery maintenance asicDW01, charge and discharge control MOSFET1 (including two n-channel MOSFETs) and other parts. A single lithium battery is connected between B+ and B-, and the output voltage of the battery pack is composed of P+ and P-. When charging, the output voltage of the charger is connected between P+ and P-, and the current flows from P+ to B+ and B- of a single battery, and then through the charging control MOSFET to P-. During the charging process, when the voltage of a battery exceeds 4.35v, the asicDW01 of the output signal OC causes the charge control MOSFET to be turned off, and the lithium battery immediately stops charging to prevent damage to the lithium battery due to overcharging. During the discharge process, the voltage of the single battery is 2.30V, and the ODDW01 pin outputs a signal to turn off the discharge of the control MOSFET. The lithium battery immediately stops discharging, and prevents the damaged lithium battery from being discharged, due to the DW01CS pin current, output short circuit, charge and discharge control field effect The transistor is stimulated, the voltage drop is increased by CS feet high voltage and quickly, and the DW01 output signal charge and discharge control field effect transistor turns off flexibly, and then completes the maintenance of a current or short circuit. What are the advantages of secondary lithium batteries? 1. High energy density 2. High working voltage 3. No recall effect 4. Long cycle life 5. No pollution 6. Light weight 7. The advantages of low self-discharge lithium polymer batteries are What? 1. No battery leakage problem, the battery does not contain liquid electrolyte, using colloidal solid; 2. Can be made into a thin battery: the capacity is 3.6v400mah, the thickness can be as thin as 0.5mm; 3. The battery can be designed into various shapes; 4. Flexible battery deformation: The maximum deformation of a flexible polymer battery is about 900; 5. It can be made into a single high voltage: the battery and the liquid electrolyte can only get high voltage by several batteries in series. Because the polymer battery has no liquid, it can be made into a multi-layer combination to achieve high voltage in a single battery. 6. The capacity will be twice that of the same size lithium battery. Lithium battery cycle life test: put the battery in 0.2v to 3.0v/battery; 1.1c constant current and constant voltage charge to 4.2v cut-off current 20mA, put it aside for 1 hour, discharge 0.2c to 3.0v (1 cycle); 500 repeated cycles After that, the capacity should be greater than 60% of the initial capacity; according to national regulations, the standard charging test for lithium batteries is (there is no relevant regulation in IEC). Place the battery under 3.0/0.2c voltage, charge with constant current to 4.2v, voltage of 1C, and cut-off current of 10mA. After 28 days of storage at a temperature of 20+_5, the discharge capacity is 0.2c~2.75v. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Analyze the basic knowledge of batteries