Analysis of the advantages and defects of lithium batteries

Advantages and disadvantages of lithium batteries: Advantages 1. Higher energy. With high energy storage density, it has reached 460-600wh/kg, which is about 6-7 times that of lead-acid batteries; 2. Battery 1C (100% DOD) uses lithium iron phosphate as the positive electrode, with a service life of more than 6 years, charge and discharge Up to 10,000 times. 3. High rated voltage (the simplex voltage is 3.7v or 3.2v), which is approximately equal to the series voltage of 3 nickel-cadmium or nickel-metal hydride rechargeable batteries, which is beneficial to the formation of battery power packs; lithium batteries can be passed through a new lithium battery The voltage regulator technology adjusts the voltage to 3.0v, which is suitable for the use of small electrical appliances; 4. It has high power tolerance, among which the lithium iron phosphate battery used in electric vehicles can reach 15-30c charge and discharge capacity, and the startup speed is high; 5. The self-discharge rate is very low, which is one of the most prominent advantages of the battery. Generally, it can reach 1%/month, which is less than 1/20 of the nickel-hydrogen battery; 6. Light weight, about 1/6-1 of the weight of lead-acid products /5; 7. High and low temperature adaptability, can be used in the environment of -20℃ to 60℃, after production, it can be used in the environment of -45℃; 8. Green and environmental protection, regardless of processing, use, waste, no , Do not attack any toxic and harmful heavy metal elements and substances such as lead, mercury, and cadmium. 9. Agricultural products do not use water at all, which is very beneficial to my country's water shortage. Specific energy refers to energy per unit weight or volume. Specific energy is expressed in Wh/kg or Wh/L. Wh is a unit of energy, W is watt, h is hour; Kg is kilogram (weight unit), L is liter (volume unit). Disadvantages 1. The safety of lithium primary batteries is poor and the risk of explosion is high. 2. Lithium cobalt oxide batteries cannot discharge large currents, are expensive, and have poor safety. 3. Lithium batteries should protect the circuit to prevent overcharge and discharge of the battery. 4. High processing requirements and high cost. 5. Application conditions are limited, and high temperature and low temperature applications have high risks. 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: The origin, advantages and disadvantages of lithium batteries