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Product Advantage
Performance Characteristics：
1. High safety: Lithium iron phosphate has a stable crystal structure and is not prone to thermal decomposition or combustion, resulting in high safety.
2. Long cycle life: Due to its stable chemical properties, lithium iron phosphate batteries have a long cycle life, typically over 2,000 cycles.
3. Wide temperature range: Lithium iron phosphate batteries can be used within a temperature range of -20°C to 60°C, showing strong adaptability.
4. Good environmental performance: No toxic or harmful substances are produced during the manufacturing process, making it environmentally friendly.
Technical Parameters
Chemical name | lithium iron phosphate |
CAS accession number | 15365-14-7 |
Specifications: | |
Appearance | black powder |
Chemical formula | LiFePO4 |
Molecular weight | 157.76 |
Vibration density g/cm3 | 0.86 |
Powder compaction g/cm3 | 2.41 |
Specific surface area m2/g | 13.68 |
C conten wt% | 1.4 |
H20 ppm | 568 |
PH | 9.21 |
Fe wt% | 34.2 |
Li wt% | 4.5 |
P wt% | 19.51 |
N+K ppm | 129 |
Ca ppm | 35 |
Ni ppm | 14 |
Zn ppm | 25 |
Cu ppm | 1 |
Magnetic substances(Ni+Cr+Zn)ppm | 0.5 |
Product Uses
With its core advantages, lithium iron phosphate has penetrated multiple fields such as power batteries, energy storage, and portable power supplies, becoming a “foundational material” of the new energy industry.
1. Power battery field (≥70% share)
It is used in new energy passenger vehicles (e.g., BYD Qin PLUS, Tesla Model 3 Standard Range), commercial vehicles (buses, logistics vehicles), and low-speed electric vehicles. In the commercial vehicle sector, the penetration rate of lithium iron phosphate reaches 100%. In the passenger vehicle sector, the penetration rate increased from 40% in 2020 to 65% in 2024. The main reason is that its safety and cost advantages meet the demand for cost reduction and safety upgrades in passenger vehicle companies.
2. Energy storage field (fastest-growing, ≥30% annual growth rate)
It is applied in large-scale energy storage power stations (grid-side and power-generation-side), residential energy storage, and industrial/commercial energy storage. Its long cycle life, high safety, and low cost perfectly match the core requirements of energy storage systems: long-duration storage, safe operation, and low cost. Currently, the penetration rate in grid-side energy storage power stations exceeds 90%, and in residential energy storage it reaches 85%.
3. Other fields
These include electric ships, rail transit, portable power banks, and medical devices. For example, electric ships have extremely high requirements for battery safety and cycle life, making lithium iron phosphate the preferred material. Medical devices (such as portable ventilators) require strict battery stability and environmental adaptability, and lithium iron phosphate can meet wide-temperature operation from -20°C to 60°C.
FAQ
What are the advantages of lithium iron phosphate batteries?
1. High theoretical capacity (170 mAh/g)
2. Suitable operating voltage (3.4 V)
3. Low cost and long service life
4. Stable, safe, and environmentally friendly
What's the working principle of lithium iron phosphate battery?
When the LiFePO4 battery is charged, the lithium ion Li+ in the positive electrode migrates to the negative electrode through the polymer diaphragm; During the discharge process, lithium ion Li+ in the negative electrode migrates to the positive electrode through the diaphragm. Lithium-ion batteries are named because lithium ions migrate back and forth as they are charged and discharged.
