Brief analysis of the advantages and disadvantages of lithium batteries

Advantages of lithium battery 1. Higher energy. The energy storage density is high, reaching 460-600wh/kg, which is about 6-7 times that of lead-acid batteries. 2. Long service life, the service life can reach more than 6 years. The battery 1C (100% DOD) is charged and discharged with lithium iron phosphate as the positive electrode, and can be used 10,000 times. 3. High rated voltage (single working 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 type of lithium battery The voltage regulation technology is adjusted to 3.0v, which is suitable for the use of small electrical appliances. 4. High power tolerance, the lithium iron phosphate battery for electric vehicles can reach 15-30c charge and discharge capacity, which is convenient for high-intensity startup and acceleration; 5. The self-discharge rate is very low, which is one of the most prominent advantages of the battery, which can generally be achieved 1%/month, less than 1/20 of Ni-MH battery; 6. Light weight, about 1/6-1/5 of the weight of lead-acid products; 7. High and low temperature adaptability, can be in the environment of -20℃-60℃ It can be used under the environment of -45℃ after production; 8. Green and environmental protection, no matter processing, use or scrap, no lead, mercury, cadmium and other toxic and harmful heavy metal elements and substances. 9. Processing basically does not consume water, 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 there is a danger of explosion. 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. The use conditions are limited, and the use of high temperature and low temperature is dangerous. 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.