lithium battery

(1) Introduction

Lithium Battery is a type of battery that uses lithium metal or lithium alloy as the anode material and uses non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, conservation and use of lithium metal require very high environmental requirements. Therefore, Lithium Batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become the mainstream.

(2) Advantages

1. Relatively high energy. With high storage energy density, has reached 460-600Wh/kg, is about 6-7 times of the lead-acid battery;

2, long service life, service life can reach more than 6 years, lithium ferrous phosphate for positive battery 1C (100% DOD) charge and discharge, can be used for 10,000 records;

3, high rated voltage (single working voltage is 3.7V or 3.2V), about equal to the series voltage of 3 nickel-cadmium or nickel-metal hydride rechargeable batteries, easy to form a battery power bank; Lithium battery can be through a new type of lithium battery voltage regulator technology, the voltage is adjusted to 3.0 V, in order to suit the use of small electrical appliances;

4. With high power bearing capacity, the lithium ferrous phosphate lithium ion battery for electric vehicles can reach 15-30C charging and discharging capacity, which is convenient for high-strength start-up and acceleration;

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

6, light weight, the same volume weight is about 1/6-1/5 of the lead acid products;

7, high and low temperature adaptability, can be used in -20℃- 60℃ environment, after processing, can be used in -45℃ environment;

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

9, the production does not consume water basically, it is very advantageous to our country which is short of water. Specific energy refers to the amount of energy per unit weight or volume. Specific energy is expressed in terms of Wh/kg or Wh/L. Wh is a unit of energy, W is a watt, h is an hour; kg is kilogram (unit of weight) and L is liter (unit of volume).

(3) Shortcomings

1. Lithium galvanic batteries have poor safety and danger of explosion.

2, lithium cobalt acid lithium-ion battery can not discharge large current, expensive, 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, the use of conditions are limited, high and low temperature use is dangerous.

(4) Applications

1. Traffic power supply

2. Electric energy storage power supply

3. Mobile communication power supply

4. New energy storage power

5. Aerospace military power supply

Three, Lithium Iron Phosphate Battery, lithium battery difference Lithium Iron Phosphate Batteries are not the same as lithium batteries.

1, lithium iron phosphate battery is used to do lithium ion secondary battery, now the main direction is power battery, relative to NI-H, Ni-Cd battery has a great advantage.

2. Lithium battery is a kind of battery using lithium metal or lithium alloy as the positive electrode material and using non-aqueous electrolyte solution. The chemical characteristics of lithium metal are very active, which makes the processing, conservation and use of lithium metal have very high environmental requirements.

3, lithium iron phosphate puncture does not fire does not explode, lithium battery will.

4, lithium iron phosphate resistance to overcharge to 100% will not burst into flames; lithium-ion batteries will gas out and swell when they reach a certain number. Two, lithium battery.