What are the advantages and disadvantages of large-capacity lithium-ion batteries

1. The energy of large-capacity lithium battery is relatively high. With high storage energy density, it has reached 460-600Wh/kg, which is about 6-7 times that of lead-acid batteries; 2. Large-capacity lithium batteries have a long service life, which can reach more than 6 years. Lithium iron phosphate is the positive electrode. The battery 1C (100% DOD) charge and discharge, there is a record that can be used 10,000 times; 3. The large-capacity lithium battery has a high rated voltage (the single working voltage is 3.7V or 3.2V), which is approximately equal to 3 nickel-cadmium or nickel-metal hydride The series voltage of rechargeable batteries is convenient to form a battery power pack; 4. It has high power tolerance, among which the lithium iron phosphate lithium battery for electric vehicles can reach 15-30C charge and discharge capacity, which is convenient for high-intensity start-up acceleration; 5. The self-discharge rate of large-capacity lithium battery is very low, which is one of the most prominent advantages of the battery. At present, it can generally achieve less than 1%/month, which is less than 1/20 of Ni-MH battery; 6. Weight of large-capacity lithium battery Light, the weight is about 1/6-1/5 of the lead-acid product under the same volume. 7. Strong high and low temperature adaptability, can be used in the environment of -20℃60℃, after the technical solution, it can be used at -45 Use in an environment of ℃; 8. Large-capacity lithium battery is green and environmentally friendly, no matter it is processed, used or scrapped, it does not contain or present any toxic and harmful heavy metal elements and substances such as lead, mercury, cadmium, etc. 9. The processing of large-capacity lithium battery basically does not consume water, which is very beneficial to my country, which is short of water. For example, the large-capacity robot battery can continue to supply power to the robot, and at the same time, it can also provide the function of large-rate discharge. Awesome. 10. The specific energy of a large-capacity lithium battery refers to the energy per unit weight or unit volume. Specific energy is expressed in Wh/kg or Wh/L. Wh is the unit of energy, W is watt, h is hour; kg is kilogram (weight unit), L is liter (volume unit). Disadvantages of large-capacity lithium batteries: There are also some shortcomings found when large-capacity lithium batteries are decomposed, which are mainly reflected in the following four aspects. 1. All lithium primary batteries have poor safety and may explode. 2. The lithium cobalt oxide lithium battery cannot be discharged at a high current, and the safety is poor. 3. Lithium batteries need to protect the circuit and beware of overcharge and overdischarge of the battery. 4. High processing requirements and high cost. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.