Advantages and disadvantages of lithium iron phosphate batteries
The battery technology field is being led by lithium iron phosphate (LiFePO4) batteries. The batteries do not contain the toxin cobalt and are more affordable than the majority of their alternatives. They are non-toxic and have a longer shelf life. The LiFePO4 battery has excellent potential for the foreseeable future.
Advantages of lithium iron phosphate batteries
8 Advantages of LiFePo4 Battery
Lithium iron phosphate batteries (LiFePO4 or LFP) offer lots of benefits compared to lead-acid batteries and other lithium batteries. Longer life span, no maintenance, extremely safe, lightweight, improved discharge and charge efficiency, just to name a few. LiFePO4 batteries are not the cheapest in the market, but due to a long life span and zero maintenance, it’s the best investment you can make over time.
1. High charging and discharging efficiency
Lifepo4 battery is a lithium-ion secondary battery. One main purpose is for power batteries. It has great advantages over NI-MH and Ni-Cd batteries. Lifepo4 battery has high charge and discharges efficiency, and the charge and discharge efficiency can reach over 90% under the condition of discharge, while the lead-acid battery is about 80%.
2. lifepo4 battery high safety performance
The P-O bond in the lithium iron phosphate crystal is stable and difficult to decompose, and does not collapse or heat like a lithium cobaltate or form a strong oxidizing substance even at a high temperature or overcharge, and thus has good safety.
It has been reported that in the actual operation, a small part of the sample was found to have a burning phenomenon in the acupuncture or short-circuit test, but there was no explosion event. In the overcharge experiment, a high-voltage charge that was several times higher than the self-discharge voltage was used, and it was found that there was still an Explosion phenomenon. Nevertheless, its overcharge safety has been greatly improved compared to the ordinary liquid electrolyte lithium cobalt oxide battery.
3. Lifepo4 battery long cycle life
Lifepo4 battery refers to a lithium-ion battery using lithium iron phosphate as a positive electrode material.
The long-life lead-acid battery has a cycle life of about 300 times, and the highest is 500 times. The lithium iron phosphate power battery has a cycle life of more than 2000 times, and the standard charge (5-hour rate) can be used up to 2000 times.
The same quality lead-acid battery is “new half-year, old half-year, maintenance and maintenance for half a year”, up to 1~1.5 years, and the lifepo4 battery is used under the same conditions, the theoretical life will reach 7~8 years.
Considering comprehensively, the performance price ratio is theoretically more than four times that of lead-acid batteries. High-current discharge can be quickly charged and discharged with high current 2C. Under the special charger, the battery can be fully charged within 1.5 minutes of 1.5C charging, and the starting current can reach 2C, but the lead-acid battery has no such performance.
4. Good temperature performance
The peak temperature of lithium iron phosphate can reach 350 ° C -500 ° C while lithium manganate and lithium cobaltate are only around 200 ° C. Wide operating temperature range (-20C–+75C), with high-temperature resistance, lithium iron phosphate electric heating peak can reach 350 °C-500 °C, while lithium manganate and lithium cobalt oxide only at 200 °C.
5. Lifepo4 battery High capacity
It has a larger capacity than ordinary batteries (lead-acid, etc.). The monomer capacity is 5AH-1000AH.
6. No memory effect
Rechargeable batteries work under conditions that are often not fully discharged, and the capacity will quickly fall below the rated capacity. This phenomenon is called the memory effect. Memory like nickel-metal hydride and nickel-cadmium batteries, but the lifepo4 battery does not have this phenomenon, no matter what state the battery is in, it can be used with the charge, no need to discharge and recharge.
7. Lightweight of lifepo4 battery
The lifepo4 battery of the same specification capacity is 2/3 of the volume of the lead-acid battery, and the weight is 1/3 of the lead-acid battery.
8. Lifepo4 batteries are environmentally friendly
The battery is generally considered to be free of any heavy metals and rare metals (Ni-MH batteries require rare metals), non-toxic (SGS certified), non-polluting, in line with European RoHS regulations, is an absolute green battery certificate.
Lithium iron phosphate battery disadvantages
1, poor safety
2, poor high temperature resistance
3、Poor life span
4, poor high-power discharge
5, the elements are toxic, ternary lithium batteries high-power charge and discharge temperature rises sharply, high temperature release of oxygen is very easy to burn.
Lithium Iron Phosphate Batteries: Highly Efficient and Renewable Choice
A LiFePO4 battery can achieve maximum charge in less than two hours of charging and when the battery is not being used, the rate of self-discharge is just 2% per month, whereas the rate for lead-acid batteries is 30%.
When compared with lead-acid batteries, lithium-ion polymer (LFP) batteries offer an energy density that is four times greater. These batteries also have their full 100% capacity available and can be charged in a short amount of time as a result. Because of these variables, the electrochemical performance of LiFePO4 batteries is very efficient.
The battery energy storage devices may help companies to reduce their electricity expenses. The battery systems store extra renewable energy for use at a later time when the company needs it. In the absence of an energy storage system, companies are compelled to purchase energy from the grid rather than using their own previously created resources.
The battery has consistent power with the same amount of current even when the battery is at 50% capacity. LFP batteries, unlike their competitors, can work at high temperatures. The robust crystal structure of iron phosphate will also not break down when charging and discharging, leading to its cycle endurance and extended lifespan.
Multiple variables contribute to the improvement of LiFePO4 batteries, including their low weight. They are about 50 percent lighter than other lithium batteries and approximately 70 percent lighter than lead batteries. Using a LiFePO4 battery in a car results in reduced gas consumption and enhanced maneuverability.
An Environment-Friendly Battery
When compared with lead-acid batteries, LiFePO4 batteries represent a far lower threat to the surrounding environment since the electrodes in these batteries are constructed from non-hazardous materials. Every year, the number of lead-acid batteries that are thrown away exceeds three million tons.
The material utilized in the electrodes, wires, and casings of LiFePO4 batteries may be retrieved by recycling these batteries. New lithium batteries could benefit from the incorporation of some of this substance. This specific lithium chemistry is perfect for high-power purposes and energy projects such as solar energy installations since it can withstand very high temperatures.
Consumers have the option of purchasing LiFePO4 batteries created from recycled materials. Because lithium batteries used for energy transportation and storage have such a long lifespan, a significant number of them are still in use, despite the fact that recycling procedures are still in development.
Broad Array of LiFePO4 Applications
These batteries are brought to use in a wide variety of settings, including solar panels, automobiles, boats, and other applications.
LiFePO4 is the safest and most durable lithium battery available for commercial usage. Therefore, they are ideal for industrial applications such as floor machines and liftgates.
LiFePO4 technology can be used in a broad range of applications. Having a longer runtime and a shorter charge time means extra time fishing in kayaks and fishing boats.
New Research of Ultrasonic Approach on Lithium Iron Phosphate Batteries
The quantity of used lithium iron phosphate batteries is growing on an annual basis; if these batteries are not disposed of in a reasonable timeframe, they will contribute to environmental pollution and consume a significant amount of metal resources.
The cathode of lithium iron phosphate batteries contains a significant quantity of the metals that make up their makeup. The ultrasonic approach is an important step in the whole process of recovering discharged LiFePO4 batteries.
To solve the inefficiencies of the LiFePO4 recycling technique, the airborne bubble dynamic mechanism of ultrasonic in the elimination of lithium phosphate cathode materials was explored using high-speed photography and Fluent modeling, as well as the disengagement process.
The lithium iron phosphate recovery efficiency reached 77.7 percent, and the recovered LiFePO4 powder exhibited excellent electrochemical characteristics. The innovative disengagement procedure developed in this work was used to recover waste LiFePO4.