Lithium batteries have many advantages and disadvantages

Lithium battery advantages:

1. High energy. Has a high storage energy density and has reached 460-600 Wh / kg, which is about 6-7 times that of lead-acid batteries;

2. Long service life, service life can reach more than 6 years, lithium ferrophosphate is a positive battery 1C(100 % DOD) charge and discharge, there are 10,000 records can be used;

3. High rated voltage(single operating voltage of 3.7 V or 3.2 V), approximately equal to the series voltage of 3 nickel-cadmium or nickel-metal hydride rechargeable batteries, facilitating the formation of battery power supply groups;

4. Have high power tolerance, in which lithium ferrophosphate lithium-ion batteries for electric vehicles can achieve 15-30C charging and discharging capabilities, facilitating high-intensity start-up acceleration;

5. The low self-discharge rate is one of the most prominent advantages of the battery, which can generally be below 1 % per month, less than 1/20 of the nickel-metal hydride battery;

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

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

8. Green environment protection, whether produced, used or scrapped, does not contain or produce 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 to China's lack of water.

Specific energy refers to the energy per unit weight or unit volume. The specific energy is expressed as Wh/kg or Wh/L. Wh is the unit of energy, W is tile, H is hour; Kg is kg(mass unit) and L is L(volume unit).

Lithium battery disadvantages:

1. Lithium primary batteries have poor safety and risk of explosion.

2. Lithium-ion batteries with lithium cobalt can not discharge large currents and have poor safety.

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

4. Production requirements are high and costs are high.

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