Lithium Iron Phosphate Battery: What is It, Why Choose It
LiFePO₄ batteries can not only reach 3,000-5,000 cycles or more, they can reach 100% depth of discharge (DOD). Why does that matter? Because that means, with LiFePO₄ (unlike other batteries) you don’t have to worry about over discharging your battery. Also, you can use it for a longer period of time as a result. In comparison, lead acid batteries last only 300-400 cycles. The high-quality lithium iron phosphate batteries used in the mid-to-high-end power station of BLUETTI can reach 3,500 charge-discharge cycles.
Lithium Iron Phosphate Battery – PowerTech Systems
Lithium Iron Phosphate (LFP or LiFePO4) :
Lithium Ferro Phosphate technology (also known as LFP or LiFePO4), which appeared in 1996, is replacing other battery technologies because of its technical advantages and very high level of safety.
Due to its high power density, this technology is used in medium-power traction applications (robotics, AGV, E-mobility, last mile delivery, etc.) or heavy-duty traction applications (marine traction, industrial vehicles, etc.)
The long service life of the LFP and the possibility of deep cycling make it possible to use LiFePO4 in energy storage applications (stand-alone applications, Off-Grid systems, self-consumption with battery) or stationary storage in general.
Major advantages of Lithium Iron Phosphate:
Very safe and secure technology (No Thermal Runaway)
Very low toxicity for environment (use of iron, graphite and phosphate)
Calendar life > 10 ans
Cycle life : from 2000 to several thousand (see chart below)
Operational temperature range :up to 70°C
Very low internal resistance. Stability or even decline over the cycles.
Constant power throughout the discharge range
Ease of recycling
Life-cycle ofLithium Iron Phosphate technology (LiFePO4)
Lithium Iron Phosphate technology is that which allows the greatest number of charge / discharge cycles. That is why this technology is mainly adopted in stationary energy storage systems (self-consumption, Off-Grid, UPS, etc.) for applications requiring long life.
The actual number of cycles that can be performed depends on several factors:
Quality of Lithium Cell
Level of power in C-Rate (1C rate means full discharge or charge in 1 hour, 2C is the same but in half an hour)
Depth of Discharge (DOD)
Operational environment : temperature, humidity, etc.
Below chart shows the estimated number of cycles for our Lithium Iron Phosphate battery cells (LFP, LiFePO4) according to the discharge power and DOD figures. The test conditions are those of a laboratory (constant temperature of 25 ° C, constant charge and discharge power ).
In standard environment, and for 1C cycles, we can get from the chart the below life cycle estimation for LFP :
3 000 cycles at 100% DoD
4 500 cycles at 80% DoD
10 000 cycles at 60% DoD
It should be noted that following the number of completed cycle, the batteries still have a nominal capacity > 80% of the original capacity.
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Key Facts About Our Lithium Iron Phosphate Batteries
Our safe, efficient and environmentally friendly batteries are lightweight and have a wide variety of applications. From powering your leisure activities to providing essential backup for critical power supplies, they keep you running when you need it most.
Simple to use and with a 5000-cycle lifespan, Lithium Iron Phosphate (LiFePO4) batteries are revolutionising the way we use power. Here are some key facts to help you better understand their potential. If you have other questions, please get in touch with our team of experts.
If you have any doubt about your battery size, capacity or electric system please call us on 01159 303 140 or contact us. Transporter Energy do not take responsibility if any of our batteries are ordered and turn out to not be compatible.