Lithium batteries were invented in the 1970s and have changed how we use many electrical devices.


People request reliability, safety, a long warranty, and a good balance between price and performance when choosing batteries. Lithium iron phosphate battery is the most efficient way to store electricity. They are the best choice for many applications, ranging from solar batteries for off-grid home energy storage systems to long-range electric vehicles.


This article will offer a guide on lithium iron phosphate batteries, such as what it is, how it works, the difference between lithium-ion and lithium iron phosphate, and the advantages of this battery.


Introduction to lithium iron phosphate battery

Lithium iron phosphate battery (LiFePO4 or LFP) is the safest lithium-ion rechargeable battery. LiFePo4 batteries only supply and accept DC. When a power load is applied, the battery can be charged (storage) with electricity. On the other hand, the battery can be discharged when connected to a power source (release of electricity). The nominal voltage of a LiFePO4 cell is 3,2V, and a 12,8V LiFePO4 battery consists of 4 cells connected in series.


LiFePo4 batteries mainly compete against Lead-acid AGM and GEL batteries, and they have advantages in all categories ranging from energy and power density, capacity, and life duration.


The difference between the lithium iron phosphate and the lithium-iron

Lithium-ion batteries have a higher energy density. Lithium-ion can hold around 150-200 watts per kg, while lithium iron phosphate holds around 90-120. But the higher energy density of lithium-ion makes them less stable during extreme charge and discharge.


The lithium-ion battery is best suited for devices that need small ultra-lightweight energy storage, such as laptops and phones. On the other hand, lithium iron phosphate battery is suitable for heavier-duty appliances with high charge and discharge rates.


The advantage of the lithium iron phosphate battery

  1. Long lifespan

Lithium iron phosphate batteries have a lifespan two to four times longer than lithium-ion batteries. The lithium iron phosphate battery has a cycle life of around 5000 times, and the lifespan can be 10-15 years. This type of battery is more stable at high temperatures. In addition, lithium iron phosphate batteries can be stored for longer periods without degrading. The longer life cycle makes it perfectly suitable for the solar energy storage system.


  1. Good temperature performance

The rage temperature of lithium iron phosphate can reach 350 ° C-500 ° C. Wide operating temperature range (-20C – +75C), with high-temperature resistance.


  1. Safety

Lithium iron phosphate batteries are safer than many other energy storage solutions on the market due to their excellent chemical stability and good thermal performance. The lithium iron phosphate batteries are designed with: built-in safety fuse, explosion-proof steel cover, and great over-temperature protection.


In addition, lithium iron phosphate batteries have passed several safety tests, such as impact, overcharge, short circuit, temperature, drop, and low-pressure tests.


  1. Depth of discharge

LiFePO4 batteries can be completely discharged without affecting the delivered capacity. Under this advantage, you can connect multiple lithium iron phosphate batteries to increase storage capacity. In addition, the batteries can be discharged at different rates without any damage.


  1. Environmental friendly

The lithium iron phosphate battery is made up of non-toxic materials: iron, graphite, and copper. They are recyclable, and even able to be repurposed as new batteries.


The metal oxides in lithium-ion batteries have dangerous potential for the environment. On the other side, lithium iron phosphate batteries consist of phosphate salts, which have a lower risk of environmental contamination.


Safety Precautions Section

The installation and maintenance of lithium iron phosphate batteries must be performed by professional personnel. There are some of the relevant safety suggestions below:


  • Do not touch the positive and negative poles in the battery box.
  • Please wear protective devices such as rubber gloves during operating.
  • Do not use external force to impact artificially, puncture, dismantle the battery, and damage the battery system.
  • Do not place the battery in high temperatures, strong magnetic fields, and strong corrosive environments.


How nRuit can help you

nRuiT energy storage battery manufacturer focuses on the field of lithium battery energy storage. As a CATL authorized energy storage system integrator, nRuiT provides lithium battery energy storage solutions for households, industry, and commerce.


Our home energy storage system applies to all types of photovoltaic panels. We provide five types of products with a safe, long lifespan and are easy to install. In addition, all the products have a five-year warranty.


Contact us to know more information about reliable energy storage systems.