1. High open circuit voltage: The single working voltage of rechargeable batteries is generally up to three times that of ordinary nickel-metal hydride rechargeable batteries or nickel-cadmium batteries;

　　2. High energy density;

　　3. High power, suitable for high current battery charging;

　　4. The circulatory system has good characteristics and no memory effect;

　　5. The self-discharge of lithium battery is small: at room temperature, the life of lithium battery is less than 12%, which is less than nickel-cadmium battery (about 25%/month) and nickel-hydrogen rechargeable battery (about 15%/month). Due to the solid electrolyte solution phase (sei) layer on the carbon negative surface layer during the entire charging process, the positive ions can be based without allowing the foundation of electronic devices, thereby avoiding the entire life of the lithium battery.

　　6. High battery charging efficiency: 100% of the Coulomb efficiency after the circulation system;

　　7. Wide operating temperature range: -25～+45c. If the heat resistance of the cathode material and lithium battery electrolyte is improved, the single temperature range will be expanded to -40～+70c.

　　8. Green and environmentally friendly organic chemical power source: Lithium battery is a kind of organic chemical energy storage technology equipment that is friendly to the natural environment and has no environmental pollution.

　　9. Long life of the circulatory system: If you choose 80% charge and discharge deep, the life of the circulatory system is greater than 1200 times, if you choose shallow charge and discharge, the frequency of the circulatory system is greater than 5000 times;

　　10. Good production and processing coordination ability, can be made into various shapes of rechargeable batteries, such as pillars, plastic soft packaging. Therefore, compared with conventional secondary batteries, lithium ion batteries have superior advantages.