What is lithium iron phosphate battery
lithium iron phosphate battery a rechargeable lithium type of battery but made with lithium iron phosphate (LiFePO4) as the cathode material.
While lithium iron phosphate is a newer version in the lithium battery family, its anodes are also made up of carbon in batteries.
Phosphate based technology possesses superior thermal and chemical stability which provides better safety characteristics than those of Lithium-ion technology made with other cathode materials. Lithium phosphate cells are incombustible in the event of mishandling during charge or discharge, they are more stable under overcharge or short circuit conditions and they can withstand high temperatures without decomposing. When abuse does occur, the phosphate based cathode material will not burn and is not prone to thermal runaway. Phosphate chemistry also offers a longer cycle life.
Battery safety
lithium iron phosphate safety is consider as the top 1 from all lithium type batteries. Lithium iron phosphate cells has a slight edge over the Li-ion (LiCoO2) battery for safety. This is important because a battery should not get overheated or catch fire in case of overcharging.
lithium iron phosphate battery cells has superior chemical and thermal stability. A Lithium-iron battery remains cool at room temperature while the Li-ion may suffer thermal runaway and heats up faster under similar charging conditions.
LiFePO4 is a nontoxic material, but LiCoO2 is hazardous in nature, so is not considered a safe material. Disposal of Li-ion battery is a big concern for the manufacturer and user
Lithium phosphate battery cycle life
lithium phosphate deep cycle battery is defined by the number of charge/discharge cycles a battery can survive.
Some testing has shown that lithium iron phosphate batteries can last about 2,000 charge/discharge cycles, compared to perhaps 500 for lithium ion batteries. These tests go to the point where the batteries hold noticeably less charge, rather than testing to a point of utter failure.
Long life, slow discharge rate and less weight should be basic features of a daily use battery which is when a lithium iron battery is appreciated as it is expected to have a longer “shelf life” than a Li-ion.
When not in use, a battery should not lose its charge at a faster rate. It should deliver almost same performance if using after a year or so. This so called shelf life is around 350 days for lithium-iron and about 300 days for a lithium-ion battery.
Cobalt is more expensive than the iron and phosphate used in Li-iron. So the lithium phosphate cells costs less (safer materials make it less expensive to manufacture and to recycle) to the consumer than the lithium-ion battery.
Lithium iron phosphate battery pack
lithium iron phosphate battery 3.2 v
lithium iron phosphate 18650
The Most popular lithium iron phosphate battery pack are: 12 volt 4S relate 12.8v for lithium iron phosphate batteries for solar storage system. Beside 4S. the 8S 24v and 16S 48v also very popular in Solar RV applications.
Lithium iron phosphate battery management system
Different from Lithium ion batteries. The lithium iron phosphate cell voltage rated voltage 3.2v, while nomal Lithium ion battery is 3.7v. So it requires different BMS( Battery managment systems). The reason is:
Like Following BMS features for lithium iron phosphate battery 12 volt.
Size : 35*60*7.2mm
Max working current : 18A
Upper limit instantaneous current ：20A
Over charge voltage range :3.75V±0.05V
Over discharge voltage range :2.35V±0.05V
Charge voltage :14.4V-15V
lithium iron phosphate battery 100ah
lithium iron phosphate battery 12v 50ah
lithium iron phosphate battery 12v 100ah
Iron phosphate batteries for solar storage
lithium phosphate battery pack Applications
Li-iron phosphate cells has the highest power density of any rechargeable lithium battery . It is very light weight and offers great cycle life which makes it the ideal product for many new designs like solar street lighting, solar storage,Solar Energy,UPS system,Golf Trundler,Electric Vehicle,EV car , Power Tool and RC hobby.Golf Car, forklift battery, Telecommunication Base Station,Telecom System, medical/hospital cart,Mobile Medication Carts,, Hospital Furniture, Hospital Trolley, Commercial Furniture
Questions about lifepo4 battery
Basically, LiFeP04 Battery Cells have the following features:
–High Energy Density , from Laboratory testing, it can theoretical reach a capacity of 180mah/g and mass production capacity as high as 165mah/g.
–10x Longer Life span In comparison with lipo battery which has a cycle life of 500 or 1000 cycles, it can extends its battery life up to 3000-5000 cycles.
–High temperature performance, since Lithium iron Phosphate Battery are mostly used for solar storage, street light, mobile satellite station, Ebike or even EV Car, so it’s very important to have chemicals that can endure high temperature, for LiFePO4 battery, it can have High thermal stability of phases up to 500C.
It is considered to be safe, non-flammable and non-hazardous by international regulated standards among all kind of lithium battery packs
BMS ( battery management system), which is an electronic regulator that mainly designed to monitor and control the charging and discharging voltage and current of Lithium iron Phosphate Battery cells or other rechargeable cells .
For Battery packs that contains too many battery cells, since battery cells voltage and capacity is not performing the same all the time, that’s why BMS comes out. A BMS is a simple electronics system to measure and control voltage and current. and it will stop charging when the desired voltage is reached.
For example, in 10 cells pack, some battery cell may reach its full capacity already, while others might only 80% full. In case battery cell are already charged full, the BMS will shut down the power flow, in case there is no BMS, the already fulled charged battery cell will go on with the charging and thus will short its life or even cause heat or fire.
Some BMS can even monitor many factors such as temperature,humid,etc.. some can even send data to computer or App, so people can read the data on time.
So, please contact with our engineer to see if your required an internal BMS or not, If you are not sure.
Model List of iron phosphate battery pack
| Product | Type | Voltage | Capacity | Length | Width | Height |
|---|---|---|---|---|---|---|
| LifePo4 12V | Lithium iron phosphate | 12V | 5Ah | 90 | 70 | 101 |
| LifePo4 12V | Lithium iron phosphate | 12V | 7.5Ah | 151 | 65 | 94 |
| LifePo4 12V | Lithium iron phosphate | 12V | 10Ah | 151 | 65 | 94 |
| LifePo4 12V | Lithium iron phosphate | 12V | 15Ah | 151 | 98 | 95 |
| LifePo4 12V | Lithium iron phosphate | 12V | 20Ah | 181 | 76 | 166 |
| LifePo4 12V | Lithium iron phosphate | 12V | 30Ah | 166 | 175 | 125 |
| LifePo4 12V | Lithium iron phosphate | 12V | 40Ah | 198 | 167 | 170 |
| LifePo4 12V | Lithium iron phosphate | 12V | 50Ah | 229 | 138 | 213 |
| LifePo4 12V | Lithium iron phosphate | 12V | 60Ah | 239 | 138 | 213 |
| LifePo4 12V | Lithium iron phosphate | 12V | 80Ah | 258 | 166 | 215 |
| LifePo4 12V | Lithium iron phosphate | 12V | 100Ah | 330 | 172 | 220 |
| LifePo4 12V | Lithium iron phosphate | 12V | 200Ah | 520 | 269 | 208 |
| LifePo4 24V | Lithium iron phosphate | 24V | 10Ah | 181 | 77 | 167 |
| LifePo4 24V | Lithium iron phosphate | 24V | 20Ah | 198 | 167 | 170 |
| LifePo4 24V | Lithium iron phosphate | 24V | 30Ah | 229 | 138 | 213 |
| LifePo4 24V | Lithium iron phosphate | 24V | 40Ah | 258 | 166 | 215 |
| LifePo4 24V | Lithium iron phosphate | 24V | 50Ah | 395 | 110 | 293 |
| LifePo4 24V | Lithium iron phosphate | 24V | 60Ah | 436 | 108 | 317 |
| LifePo4 24V | Lithium iron phosphate | 24V | 100Ah | 520 | 269 | 208 |
| LifePo4 36V | Lithium iron phosphate | 36V | 10Ah | 150 | 104 | 76 |
| LifePo4 36V | Lithium iron phosphate | 36V | 20Ah | 160 | 120 | 86 |
| LifePo4 36V | Lithium iron phosphate | 36V | 30Ah | 220 | 150 | 110 |
| LifePo4 36V | Lithium iron phosphate | 36V | 40Ah | 320 | 180 | 140 |
| LifePo4 36V | Lithium iron phosphate | 36V | 60Ah | 480 | 360 | 200 |
| LifePo4 36V | Lithium iron phosphate | 36V | 100Ah | 580 | 360 | 220 |
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