What Is a LiFePO4 Battery?
Lithium iron phosphate lithium-ion batteries, also known as LiFePO4 batteries, are a type of lithium-ion secondary battery that uses lithium iron phosphate as the positive electrode material. Known for their capability to undergo numerous charge and discharge cycles, these batteries feature an arrangement where an electrolyte fills the space between the positive and negative electrodes, separated by a separator membrane.
During charging, lithium ions move from the positive electrode to the negative electrode, creating a potential difference that allows the battery to store energy. During discharge, these ions migrate back to the positive electrode, enabling the flow of electric current to power devices.
LiFePO4 batteries are distinguished by their higher battery density compared to other types, such as ternary lithium and lithium titanate batteries. This makes them more compact and easier to miniaturize. They are also known for their high-temperature resistance, owing to the properties of lithium iron phosphate, and they tend to have a longer lifespan. These batteries are widely used in various applications, including portable power sources and electric vehicles.