Batteries

What is LiFePO4 Battery and why it’s better than other lithium batteries?

What is the LiFePO4 Battery?

The LiFePO4 battery is a type of lithium-ion rechargeable battery. LiFePO4 stands for Lithium (Li) Iron (Fe) Phosphate (PO4). LiFePo4 Battery knows by many Names Like lithium iron phosphate battery or LFP battery. LFP batteries use lithium iron phosphate (LiFePO4) as the cathode material alongside a graphite carbon electrode with a metallic backing as the anode.

Lithium iron phosphate batteries can be used in high-temperature environments, where lithium-ion cells should never be used above +60 Celsius. Lithium iron phosphate cells have greater cell density than lead acid, at a fraction of the weight.

Types of Lithium Batteries

Lithium Cobalt Oxide (LiCoO22) Battery
Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2) Battery
Lithium Titanate (LTO) Battery
Lithium Manganese Oxide (LiMn2O4) Battery
Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2) Battery
Lithium iron phosphate batteries (LiFePO4) Battery

Motoma LifePo4 Battery

Advantage Of LiFePO4 Battery

Lithium iron phosphate batteries (LiFePO4 or LFP) offer lots of benefits compared to lead-acid batteries and other lithium batteries. Longer life span, no maintenance, extremely safe, lightweight, improved discharge and charge efficiency.

One important advantage Of the LFP batteries over other lithium-ion batteries chemistries is thermal and chemical stability, which improves battery safety. Lithium iron phosphate cells have less cell density than lithium-ion. This makes them less volatile, and safer to use. LiFePO4 batteries are the safest and most stable lithium battery chemistry. Unlike other lithium batteries, lithium iron phosphate battery does not catch fire or explode.

LiFePO4 is an intrinsically safer cathode material than LiCoO2 and manganese dioxide spinels through omission of the cobalt, with its negative temperature coefficient of resistance that can encourage thermal runaway.

Is LiFePO4 better than lithium-ion?

The lithium iron phosphate battery has advantages over lithium-ion, both in terms of cycle life (it lasts 4-5x longer), and safety. This is a key advantage because lithium-ion batteries can overheat and even catch fire, while LiFePO4 does not.

What is the difference between NMC and LFP Batteries?

LFP batteries deliver at least 2500 – 3000 full charge/discharge cycles before reaching 80% of original capacity. Typical NMC batteries deliver 500 – 1000 full charge/discharge cycles before reaching 80% of original capacity. This means that LFP batteries provide FOUR times more cycle life than typical LCO batteries.

New tests prove that LFP Lithium Batteries Longer Life span than NMC.

Testing conducted by various testing labs, during the study and testing of LiFePO4 Batteries, some interesting facts come out. LFP chemistry is superior compared to NMC – it is safer, offers a longer lifespan, and is generally less expensive than NMC, and NCA.

Low Cost and Low Impact on Environment

lithium iron phosphate battery is known for its low cost with some estimates putting it as much as 70 percent lower per kilogram than nickel-rich NMC. The cost advantage comes from its chemical composition. Iron and phosphorus are mined at enormous scales across the globe and are widely used in many industries.

LiFePO4 Batteries Usage

Lithium iron phosphate batteries are widely used in passenger cars, buses, logistics vehicles, low-speed electric vehicles, Solar Power Storage, etc. due to their safety and low-cost advantages.

The energy density of LFP batteries is lower than the alternative of lithium cobalt oxide (LiCoO2) and has a lower operating voltage. In spite of these challenges, it’s impossible to deny the benefits of LFP batteries in EV vehicles.

Higher discharge rates needed for acceleration, lower weight, and longer life make this battery type ideal for forklifts, bicycles, and electric cars. 12V LiFePO4 batteries are also gaining popularity as a second (house) battery for a caravan, motor-home, or boat.

Tesla Motors currently uses LFP batteries in certain vehicles.

Lithium-ion battery

Lithium-ion battery

A lithium-ion battery or Li-ion battery is a type of rechargeable battery. Li-Ion batteries have one of the highest energy densities of any battery technology today. Compared to the other high-quality rechargeable battery technologies (nickel-cadmium or nickel-metal-hydride), Li-ion batteries have a number of advantages. In addition, Li-ion battery cells can deliver up to 3.6 Volts, 3 times higher than technologies such as Ni-Cd or Ni-MH. Li-ion batteries have no memory effect, a detrimental process where repeated partial discharge/charge cycles can cause a battery to ‘remember’ a lower capacity.

The lithium-ion battery has an anode and electrode, as well as an electrolyte in three main components. Li-Ion Battery uses lithium ions as a key component of its electrochemistry. In the battery, lithium ions move from the negative electrode to the positive electrode during discharge and back when charging.

When a Li-ion battery is charged, lithium ions are removed from the cathode electrode. The decomposition of lithium ions then travels through the electrolyte and transfers into the anode electrode, and the energy is stored in a lithium-ion battery during this cycle. When the Li-Ion Battery stop storing, the lithium ions move back to the cathode electrode; and the stored energy has been released. The selection of cathode and anode materials is very important, and this is the main focus of various researchers

A prototype lithium-ion battery was developed by Akira Yoshino in 1985, based on earlier research by John Goodenough, M.Stanley Whittingham, Rachid Yazami, & Koichi Mizushima during the 1970s–1980s, and then a commercial Li-ion battery was developed by a Sony and Asahi Kasei team led by Yoshio Nishi in 1991.

The Lifespan Of Lithium-Ion Battery

The typical lifespan of a lithium-ion battery is around 2-3 years or 300-500 charge cycles. One charge cycle is calculated as the period of use from fully charged to discharged and fully recharged once again.

Li-Ion batteries are now an important part of our daily. By powering our mobiles, TV remotes, Laptops, Toys, Electric Scooters, Electric Cars, and Solar Power. Using Li-ion batteries helps to reduce carbon effects by reducing the usage of fossil fuels and saving the environment.

Currently, the bestselling electric cars, the Nissan Leaf and the Tesla Model S, both use Li-ion batteries as their primary fuel source.