What is LiFePO4?

From Wikipedia, the free encyclopedia Lithium iron phosphate (LiFePO4), also known as LFP, is a compound used in lithium iron phosphate batteries[1] (related to Li-Ion batteries). Lithium iron phosphate (molecular formula is LiFePO4, also known as LFP), is used as cathode material for lithium-ion batteries (also called lithium iron phosphate battery). Its characteristic does not include noble elements such as cobalt, the price of raw material is lower and both phosphorus and iron are abundant on Earth which lowers raw material availability issues. Batteries using this cathode material have a moderate operating voltage (3.3V), high energy storage capacity (170mAh/g), high discharge power, fast charging and long cycle life, and its stability is also high when placed under high temperatures or in a high thermal environment. This seemingly ordinary but, in fact, revolutionary and novel cathode material for lithium-ion batteries belongs to the olivine group. The etymology of its mineral name – triphyllite - is from the Greek tri (three) and phyllon (leaf). This mineral is gray, red-grey, brown, or black. Detailed information about this mineral can be found on the website [1].

Comparison table ~ LiFePO4 vs Lead Acid

Battery Lithium-iron phosphate Lead acid English name LiFePO4 Pb-acid Ease of production difficult easy Average working voltage 3.3V 2V Voltage fluctuation during use maintain stability drop progressively Cycle life remaining battery capacity at least 75% More than 3000times charging at 1C (approx. 10 years) 150-300 times (approx. 1-2 years) Capacity C-rate highC-ratelow (D.O.D.) Applicable capacity 99% 50% ~ 60% Auto-discharge rate (monthly)30% Quick charge capability 1C~3C quick charge 0.2C Maximum current discharge characteristic 10C~30C 1C~5C Temperature during discharge -20~+75 -20~+55 Memory effect none none Stability under heat optimum low Weight (compare under same voltage same capacity) 1/3 lead acid heavy Installation method no direction limited fixed direction Safety mild heat, no explode, no inflame danger of acid fluid spatter Environmental friendly Meet RoHS; No meet RoHS; lead and acid contaminates Environmental requirements Non-recycle recycle

Why must you choose LiFePO4 battery?

1) Quick Charge Capability - able to achieve 90% capacity in 10minutes fastest charging time when charging at 1C~3C. 2) High Current and High Power Output – able to discharge at high current (5C~30C), discharge capacity 10 times higher than that of current existing re-chargeable batteries. 3) No Memory Effect – regardless of remaining capacity, it may be charged at any time without affecting the capacity. 4) Able to completely discharge its entire stored power, depth of discharge up to 99% (typical lead-acid battery can only release up to approx. 60%, excessive discharge will result in damaging the battery). 5) Exceptionally Long Lifespan – capable of more than 1000 times of charge/discharge (approx. 5~10years) even when discharging at High C-rate, and approx. more than 3000 times charge/discharge when discharging at normal rate. 6) High Safety – the anode material is non-inflammable and has high temperature stability, hence it is extremely safe during discharging. 7) Working Voltage Stable – voltage is stable even when the discharge is less than 85% capacity. 8) Eco-friendly, RoHS Compliant – no contaminants in raw materials and manufacturing process, 100% green product. 9) Working temperature – normal: -10℃~90℃, with special treatment: -30℃~100℃.

About the car battery overheating problem?

After the car is running for some time, if the battery’s temperature is high, the battery’s digital protection panel will enter into protective device, to avoid overheating problems.

Will the battery voltage has degradation symptoms?

No performance degradation for LiFePO4 battery, unlike conventional lead acid battery. LiFePO4 battery special characteristic is voltage stable, the voltage remains like new after 3 years usage.

Any fuel saving after LifePO4 battery installation?

Enable the sparks from the spark plug to achieve maximum efficiency, increase power, which allows the vehicle to reduce fuel consumption and exhaust emissions, according to vehicle condition up to 5% -25% energy saving.

When the LiFePO4 battery voltage decreases, will that result air conditioning, stereo of the car not working?

In the state of the car starts, the generator provides power to the entire vehicle electronic products. The battery just stores up the power for the next car start use. No matter what kind of battery, too low voltage is unable to get the car to start or electronic products to work. Our LiFePO4 battery has a voltage stability characteristics compared with lead-acid batteries, stable voltage allows longer life of electronic products.

Safety issues?

The LiFePO4 battery core has gone through a variety of harsh penetration, impact tests; non-flammable, non-explosive, proved to be the safest battery, do not need to worry about the problem of car fire.

Maintenance, warranty issues?

Five-year manufacturer's warranty for the vehicle battery. During the warranty period, if there is any battery problem, you can return the original manufacturer for repair.

Is the battery long lifespan?

For LiFePO4 battery, its cycle life up to 3000 times. The cycle life of lead-acid batteries is generally 150-300 times. Compared with other batteries, LiFePO4 battery life is relatively long.