Analysis of the advantages and disadvantages of lithium batteries and the scope of use

Advantages of lithium batteries 1. The energy 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. Long service life, the service life can reach more than 6 years, the battery with lithium iron phosphate as the positive electrode 1C (100 %DOD) charge and discharge, there are records that can be used for 10,000 times; 3. The rated voltage is high (the 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 convenient Form a battery power pack; the lithium battery can be adjusted to 3.0V through a new type of lithium battery voltage regulator technology to suit the use of small electrical appliances; 4. It has high power tolerance, including the phosphoric acid used in electric vehicles. Lithium iron battery can reach 15-30C charge and discharge capacity, which is convenient for high-intensity start-up acceleration; 5. The self-discharge rate is very low, which is one of the most prominent advantages of the battery, and generally can achieve less than 1%/month , Less than 1/20 of nickel-hydrogen battery; 6. Light weight, the weight is about 1/6-1/5 of lead-acid products under the same volume; 7. High and low temperature adaptability, can be at -20℃-60 It can be used in an environment of -45°C after the process is solved; 8. It is environmentally friendly, no matter processing, use or scrap, it does not contain or present any toxic and harmful heavy metals such as lead, mercury, cadmium, etc. Elements and substances. 9. Processing basically does not consume water, which is very beneficial to my country, which is short of water. Specific energy 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 lithium batteries 1. Lithium primary batteries have poor safety and risk of explosion. 2. Lithium cobalt oxide lithium batteries cannot be discharged at a high current, are expensive, and have poor safety. 3. Lithium batteries need to protect the circuit and guard against overcharge and overdischarge of the battery. 4. High processing requirements and high cost. 5. The use conditions are limited, and the use of high and low temperature is dangerous. Lithium battery use scope 1. Transportation power supply 2. Electric energy storage power supply 3. Mobile communication power supply 4. New energy storage power supply 5. Aerospace military power supply statement: Some pictures and content of articles published on this site are from the Internet, such as If there is any infringement, please contact to delete the previous article: Is the all-solid-state metal lithium battery the future development direction of electric vehicle batteries?