What are the advantages and disadvantages of lithium ion batteries?

What are the advantages and disadvantages of lithium ion batteries?

Advantages:

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. It has a long service life and can last for more than 6 years. Lithium iron phosphate (LFP) battery with 1C (100%DOD) charge and discharge, it can be used for 10,000 times;

3. High rated voltage (single working voltage is 3.7V or 3.2V), which is equal to the series voltage of 3 nickel-cadmium or nickel-metal hydride rechargeable batteries, which is convenient for battery power packs; the lithium battery can be adjusted to a voltage of 3.0V by a new lithium battery regulator technology to suit the use of small appliances.

4. With high power bearing capacity, lithium iron phosphate lithium ion battery for electric vehicles can achieve 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 outstanding advantages of the battery, generally can be 1% / month or less, less than 1 / 20 of the nickel-hydrogen battery;

6. Light weight, the weight of the same volume is about 1/6-1/5 of the lead acid product;

7. High temperature and low adaptability, can be used in the environment of -20°C - 60°C, after the process treatment, can be used in -45°C environment;

8. Green, no matter whether it is produced, used or scrapped, it does not contain any toxic and harmful heavy metal elements and substances such as lead, mercury and cadmium.

9. Production basically does not consume water, which is very beneficial for China that lacks water.

Disadvantages:

1. Lithium primary batteries have poor safety and there is a danger of explosion.

2. The lithium ion battery of lithium cobalt oxide cannot be discharged at a large current, is expensive, and has poor safety.

3. Lithium-ion batteries need to protect the line to prevent the battery from being overcharged and discharged.

4. High production requirements and high cost.

5. There are restrictions on the use conditions, and the use of high and low temperature is dangerous.