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Lifepo4 Battery Advantages And Characteristics
- Aug 22, 2018 -

Lifepo4 battery

The lithium iron phosphate battery is a secondary battery, and the main direction is a power battery, which has great advantages over NI-H, Ni-Cd batteries and lead-acid batteries.

 

Eight advantages of lithium iron phosphate power battery:

First, the long life, long life lead-acid battery cycle life is about 300 times, the highest is 500 times, and the lithium iron phosphate power battery produced by Guangzhou Fengjiang Battery New Technology Co., Ltd. has a cycle life of more than 2000 times. Standard charging (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 lithium iron phosphate battery under the same conditions, will reach 7-8 years. Comprehensive consideration, the performance price ratio will be more than 4 times that of lead-acid batteries.

Second, the use of safety, lithium iron phosphate completely solves the safety hazard of lithium cobaltate and lithium manganate. Lithium cobaltate and lithium manganate will explode under strong collision, posing a threat to consumers' life safety, and iron phosphate Lithium undergoes rigorous safety testing and will not explode even in the worst traffic accidents.

Third, the high current 2C can be quickly charged and discharged. 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.

Fourth, high temperature resistance, lithium iron phosphate electric heating peak can reach 350 °C -500 °C and lithium manganate and lithium cobalt oxide only at about 200 °C.

Five, large capacity.

Sixth, no memory effect.

Seven, small size and light weight.

Eight, green and environmental protection.

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Lithium iron battery characteristics

High efficiency output: standard discharge is 2 5C, continuous high current discharge can reach 10C, high efficiency output: standard discharge is 2~5C, continuous high current discharge can reach 10C, instantaneous 10C pulse discharge (10sec) can reach 20C 20C. Pulse discharge (10sec) up to 20C. Excellent service life, 500 cycles The discharge capacity is still greater than 95% of the secondary loop, 95%. Excellent service life, after 500 cycles, its discharge capacity is still greater than 95%. The safety is high, and the battery does not burn or explode even if it is damaged inside or outside the battery. The safety is high, and the battery does not burn or explode even if it is damaged inside or outside the battery. It has good heat resistance and can withstand charging and discharging speeds of 3~5C or higher. 3~5C, good heat resistance, and can withstand 3~5C, even higher charge and discharge speed.

Good performance at high temperature: working environment external temperature 65 °C 65 °C high temperature performance: working environment external temperature 65 ° C, the internal temperature will be up to 95 ° C, the battery discharge temperature can reach 160 ° C but the battery structure safety, 160 °C, 95 °C, the temperature of the battery can reach 160 °C at the end of discharge, but the structure of the battery is safe and intact. There is no damage from overdischarge to zero volts. There is no damage from overdischarge to zero volts. Can be charged quickly. Can be charged quickly. Lithium-iron battery materials do not use rare metals, which can significantly reduce costs. Lithium-iron battery materials do not use rare metals, which can significantly reduce costs. No pollution to the environment. No pollution to the environment.

Application example of replacing lithium-ion battery with lead-acid battery

 

A 36V/10Ah (360Wh) lead-acid battery is used, which weighs 12kg. It can travel about 50km with a single charge, and the charging frequency is about 100 times. The use time is about 1 year. If a lithium-iron power battery is used, the same 360Wh energy (12 10Ah batteries are connected in series), the weight is about 4kg, and the charging can be carried out for about 80km at a time, the charging frequency can reach 1000 times, and the service life can reach 3 to 5 years. Although the price of lithium-iron battery is much higher than that of lead-acid batteries, the overall effect is better with lithium-iron battery and lighter in use.

Lithium iron power battery application

1. Large-scale electric vehicles: buses, electric vehicles, scenic spots and hybrid electric vehicles, and hybrid vehicles. Combined with the power car.

2. Light electric vehicles: electric bicycles, golf carts, small electric slide trucks, stackers, cleaning vehicles, electric wheelchairs, etc.

3. Power tools: electric drills, chainsaws, lawn mowers, etc.

4. Remote control cars, boats, airplanes and other toys.

5. Energy storage equipment for solar and wind power generation.

6.UPS and emergency lights Warning lights and miner's lamps (safest) and emergency lights

7. Replace the 3V disposable lithium battery in the camera and the 9V NiCd or Ni-MH rechargeable battery (the same size). Rechargeable battery (the same size).

8. Small medical equipment, portable instruments, etc. Small medical equipment and portable instruments.

 

Lithium iron phosphate battery application performance

British pure electric truck - zero pollution

Battery : HPS 14410 x 34 - 50KWh Performance : Body: Modified. 1- Body: Modified by Isuzu 5t/18ft. The advanced LIFEBATT 2-device is equipped with advanced LIFEBATT HPS system 50KWh and motor battery 14410 50KWh and motor-specific transmission. Exclusive transmission. 120miles, via special 3-charge post-stroke: 120miles, fast charger with special quick charger can be fully charged in 1 hour。

Lithium iron phosphate battery application performance

 

American all-electric sports car, HPS 10810 composition 12.9KWh, continued American all-electric sports car, 10810 composition 12.9KWh, continued 150miles. Flight capacity 150miles.

Structure and working principle of LiFePO4 battery Structure and working principle of battery

 

On the left is the olivine-structured LiFePO4 as the positive electrode of the battery. The aluminum foil is connected to the positive electrode of the battery. The middle is the polymer separator. It separates the positive electrode from the negative electrode, but the lithium ion Li+ can pass and the electron e- cannot pass. The right side is composed of A battery negative electrode composed of carbon (graphite) is connected to the negative electrode of the battery by a copper foil. Between the upper and lower ends of the battery is the electrolyte of the battery, and the battery is hermetically sealed by a metal case. When the LiFePO4 battery is charged, the lithium ion Li+ in the positive electrode migrates toward the negative electrode through the polymer separator; during the discharge, the lithium ion Li+ in the negative electrode migrates toward the positive electrode through the separator. Lithium-ion batteries are named after the lithium ions migrate back and forth during charging and discharging.

Main performance of LiFePO4 battery Main performance of battery

The LiFePO4 battery has an operating voltage of 3.2 V, a termination charge voltage of 3.6 V, and a termination discharge voltage of 2.0 V. Due to the quality and process of the positive and negative materials and electrolyte materials used by various manufacturers, there will be some differences in their performance. For example, the same model (standard battery in the same package) has a large difference in battery capacity (10% to 20%).

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