-Comparison of advantages and disadvantages between lithium iron phosphate batteries and lithium batteries

Comparison of advantages and disadvantages between lithium iron phosphate batteries and lithium batteries
author:enerbyte source:本站 click85 Release date: 2024-01-31 09:04:29
abstract:
Lithium iron phosphate batteries: Lithium iron phosphate battery refers to a lithium-ion battery that uses lithium iron phosphate as the positive electrode material. Important positive electrode materials for lithium-ion batteries include lithium cobalt oxide, lithium manganese oxide,...

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Lithium iron phosphate batteries:

Lithium iron phosphate battery refers to a lithium-ion battery that uses lithium iron phosphate as the positive electrode material. Important positive electrode materials for lithium-ion batteries include lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, ternary materials, and lithium iron phosphate. Lithium cobalt oxide is currently the cathode material used by the vast majority of lithium-ion batteries.

Advantages of lithium iron phosphate batteries:

1. Lithium iron phosphate batteries have a long lifespan, with a cycle life of over 2000 times. Under the same conditions, lithium iron phosphate batteries can be used for 7 to 8 years.

2. Safe to use. Lithium iron phosphate batteries have undergone strict safety testing and will not explode even in traffic accidents.

3. Fast charging. Using a dedicated charger, charging at 1.5C for 40 minutes can fully charge the battery.

4. The lithium iron phosphate battery pack is resistant to high temperatures, and the thermal air value of the lithium iron phosphate battery can reach 350 to 500 degrees Celsius.

5. Lithium iron phosphate batteries have a large capacity.

6. Lithium iron phosphate batteries have no memory effect.

7. Lithium iron phosphate batteries are environmentally friendly, non-toxic, pollution-free, with a wide range of raw material sources and affordable prices.

Lithium ion batteries:

Lithium ion battery. jpg

Lithium ion batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solutions. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. So, lithium-ion batteries have not been applied for a long time. With the development of science and technology, lithium-ion batteries have become mainstream now.

Advantages of lithium-ion batteries:

1. The energy is relatively high. It has a high storage energy density, reaching 460-600Wh/kg, which is about 6-7 times that of lead-acid batteries;

2. Long service life, with a lifespan of over 6 years. A battery with lithium ferrous phosphate as the positive electrode can be charged and discharged at 1C, with a record of being able to be used 10000 times;

3. The rated voltage is high, and the individual 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, making it easy to form a UPS power battery pack; Lithium ion batteries can be adjusted to 3.0V through a new type of lithium-ion battery voltage regulator technology, to be suitable for the use of small appliances;

4. Has high power endurance, among which the lithium iron phosphate battery used in electric vehicles can reach a charging and discharging capacity of 15-30C, facilitating high-intensity starting acceleration;

5. The self discharge rate is very low, which is one of the most prominent advantages of lithium-ion batteries. It can generally reach less than 1% per month, less than 1/20 of nickel hydrogen batteries;

6. Lightweight, with a weight of approximately 1/6-1/5 of that of lead-acid products in the same volume;

7. Strong adaptability to high and low temperatures, can be used in environments ranging from -20 ℃ to 60 ℃, and after process treatment, can be used in environments ranging from -45 ℃;

8. Lithium ion batteries are green and environmentally friendly. Regardless of production, use, or disposal, they do not contain or exhibit any toxic or harmful heavy metal elements or substances such as lead, mercury, cadmium, etc.

9. Production basically does not consume water, which is very beneficial for China, which is short of water.

The difference between iron phosphate lithium-ion batteries and lithium-ion batteries:

1. Lithium iron phosphate battery packs are used as lithium-ion secondary batteries, and now the important direction is power lithium batteries, which have great advantages over NI-H and Ni Cd batteries.

2. Lithium ion batteries are a type of battery that uses lithium metal or lithium alloy as the positive electrode material and non-aqueous electrolyte solutions. The chemical properties of lithium metal are very active, making the processing, storage, and use of lithium metal highly demanding of the environment.

3. Lithium iron phosphate puncture does not ignite or explode, lithium-ion batteries will.

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