What Are The Characteristics Of Lithium Batteries?

advantage

1. High energy. It has high storage energy density, reaching 460-600wh / kg, about 6-7 times of lead-acid battery;

2. Long service life, more than 6 years. The battery 1C (100% DoD) with LiFePO4 as positive electrode can be used for 10000 times;

3. The rated voltage is high (single working voltage is 3.7V or 3.2V), which is approximately equal to the series voltage of three nickel cadmium or nickel hydrogen rechargeable batteries, so as to form a battery power pack; the voltage of lithium battery can be adjusted to 3.0V through a new technology of lithium battery voltage regulator, so as to be suitable for the use of small electrical appliances.

4. It has high power bearing capacity. The lithium iron phosphate lithium-ion battery for electric vehicles can reach 15-30c charge and discharge capacity, which is convenient for high-strength start-up acceleration;

5. The self discharge rate is very low, which is one of the most outstanding advantages of the battery. Generally, it can be less than 1% per month, less than 1 / 20 of the Ni MH battery;

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

7. It has strong adaptability to high and low temperature. It can be used in the environment of - 20 ℃ - 60 ℃. After processing, it can be used at - 45 ℃;

8. Green environmental protection, no matter the production, use and scrap, it does not contain or produce any toxic and harmful heavy metal elements and substances such as lead, mercury, cadmium.

9. The production basically does not consume water, which is very beneficial to our country which is short of water.

Specific energy refers to the energy per unit weight or unit volume. The specific energy is expressed in WH / kg or WH / L. Wh is the unit of energy, W is the watt, h is the hour, kg is the kilogram (unit of weight), l is the unit of volume.

shortcoming

1. The safety of lithium primary batteries is poor, and there is a risk of explosion.

2. Lithium ion battery with lithium cobalt oxide can not discharge at high current, which is expensive and has poor safety.

3. Lithium ion batteries need to protect the circuit from overcharge and over discharge.

4. High production requirements and high cost.

5. Limited use conditions, high and low temperature use is dangerous