What Is LiFePO4 And Why Is It A Better Choice?

The lithium deep cycle battery has become more mainstream in recent years, but there are many differences between lithium chemistries. In fact, most American consumers – electronic enthusiasts aside – are only familiar with a limited range of lithium options. Cobalt oxide, manganese oxide, and nickel oxide formulations are the most common forms.
In the first place, let’s look back. Lithium-ion batteries are relatively new and have only been around for about 30 years. As lithium technologies have proven valuable for powering smaller electronics – such as laptops and cell phones – they have become increasingly popular. Lithium-ion batteries have also become infamous for their thermal events, as you may recall from several news stories.
Nevertheless, lithium iron phosphate (LiFePO4) was introduced. It was an inherently non-combustible lithium solution that allowed for a slightly lower energy density while being safer than other lithium chemistries. In addition to being safer, LiFePO4 batteries offered many advantages over other lithium chemistries, particularly in high power applications.
A lithium iron phosphate battery isn’t new, but it’s just now gaining traction in global commercial markets. Here’s how LiFePO4 differs from other lithium batteries:
– It Is Safer and More Stable
– Compared to lead-acid batteries, they perform better
– As a result, they are lighter and take up less space
– Non-toxic and less harmful to the environment

Safety And Stability

LiFePO4 batteries are renowned for their exceptional safety features due to their extremely reliable chemistry. Phosphate-based batteries offer impressive thermal and chemical stability, making them much safer than other lithium-ion batteries with different cathode materials. These lithium phosphate cells are completely nonflammable when mishandled during charging or discharging, as well as able to endure extreme temperatures and challenging terrain.


Performance is a key consideration when choosing the right battery for an application. Lithium iron has numerous advantages, like extended shelf life and lower weight compared to lithium-ion. Plus, it delivers five to 10 years or more of service life with better runtime than lead-acid batteries or other lithium formulations. With reduced charging time, this battery is ideal for reliable performance that stands the test of time.
As compared with lead-acid batteries and other lithium batteries, lithium iron phosphate batteries have several advantages, including improved discharge and charge efficiency, longer life span, and the ability to deep cycle. While LiFePO4 batteries are often more expensive, the lower lifetime cost, minimal maintenance, and infrequent replacement make them a smart long-term investment.

Space Efficiency

The space-efficient qualities of LiFePO4 should also be noted. LiFePO4 makes effective use of space and weight, making your product more efficient overall by being one-third lighter than most lead-acid batteries and almost half lighter than manganese oxide.

Environmental Impact

LiFePO4 batteries are non-toxic, non-contaminating and contain no rare earth metals, making them an environmentally conscious choice. It is highly risky to use lead-acid and nickel oxide lithium batteries (especially lead acid, since internal chemicals degrade the structure over time and eventually leak).