Advantages of lithium batteries
1. Lithium batteries have high-voltage channels. The average voltage of a single battery is 3.7v or 3.2v, which is approximately equal to the series voltage of three nickel-cadmium batteries or nickel-metal hydride batteries, which is beneficial to form a battery power group.
2. Compared with batteries, lithium batteries have a higher energy density. Has a high energy storage density, reaching 460-600wh / kg, which is about 6-7 times that of lead-acid batteries.
3. Compared with lead-acid batteries, lithium batteries are lighter, about 1 / 5-6 of the same volume of lead-acid products.
4, lithium battery life is longer, the service life can reach more than 6 years, lithium ferrous phosphate as a positive battery has 1CDOD charge and discharge, with 1000 operating records.
5. Lithium iron phosphate lithium ion battery for electric vehicles has a high power carrying talent, which can reach the charge and discharge talent of 15-30c, which is convenient for high-intensity startup and acceleration.
6, low self-discharge rate, no memory effect, often used in power supply of daily electronic products.
7. The lithium battery has strong adaptability to high temperature and low temperature, and can be used in the environment of -20 ° C-60 ° C. After processing, it can be used in the environment of -45 ° C.
8. Green and environmentally friendly, regardless of production, use and scrap, it does not contain or produce any toxic and harmful heavy metal elements and substances such as lead, mercury and cadmium.
Defects of lithium batteries
1. Lithium battery has poor safety and risk of explosion.
2. Lithium batteries made of lithium cobaltate cannot be discharged under high current, and their safety is poor.
3. The lithium battery needs to protect the circuit to prevent the battery from being overcharged and discharged.
4. High production requirements and high costs.