Lithium Iron Phosphate Batteries and the HomeGrid Stack'd Series


As the world's energy needs continue to grow, the demand for efficient and sustainable energy storage solutions becomes increasingly important. One such solution that has gained significant attention in recent years is the lithium iron phosphate (LiFePO4) battery, often shortened to LFP. As a global leader in residential and small commercial storage projects, the team at HomeGrid aims to introduce and explore the world of LFP batteries, their advantages, applications, and their promising future in revolutionizing energy storage with the powerful HomeGrid Stack'd Series. 

Understanding Lithium Iron Phosphate Batteries

Understanding the technology behind LFP batteries will enable a more informed decision-making process when adopting residential energy storage. Lithium iron phosphate (LiFePO4) batteries are a type of lithium-ion battery that stands out for their unique composition. Unlike traditional lithium cobalt oxide (LiCoO2) cathodes, LFP batteries use iron phosphate (FePO4) as the cathode material. For more of a comparison on Lithium-Ion batteries, click here. Most notably, LFP enhances safety, stability, and several other benefits at a fraction of the cost when compared to NMC batteries and other alternatives. LFP batteries provide improved safety by being more resistant to overheating, reducing the risk of fires and thermal runaway – all of which are factors homeowners must consider. They are ideal for applications prioritizing safety, such as electric vehicles and energy storage systems. These batteries also exhibit exceptional stability and longevity, with a longer cycle life and the ability to endure frequent charging and discharging cycles. This makes lithium iron phosphate a suitable stack for renewable energy storage and grid stabilization.

Advantages of Lithium Iron Phosphate Batteries

Safety: LFP batteries are renowned for their superior safety features. Their inherent stability minimizes the risk of thermal runaway and eliminates the possibility of combustion, making them highly resistant to overheating and explosions. Keep your home safe with LFP technology.

Longevity: These batteries exhibit an impressive cycle life, capable of enduring thousands of charge and discharge cycles without significant capacity loss. Compared to other lithium-ion batteries, LFP batteries have a prolonged lifespan, making them ideal for applications requiring long-lasting energy storage solutions.

High Power Density: Lithium iron phosphate batteries possess excellent power density, enabling them to deliver high levels of energy quickly. This feature makes them ideal for applications requiring frequent bursts of power, like residential and commercial energy storage.

Thermal Stability: LFP batteries have a relatively low thermal coefficient, which means they generate less heat during charging and discharging compared to other lithium-ion batteries. This thermal stability reduces the risk of thermal runaway and ensures efficient performance even in extreme temperature conditions.

Applications of Lithium Iron Phosphate Batteries

LFP batteries have a wide range of applications, including electric vehicles (EVs), renewable energy storage, uninterruptible power supplies (UPS), and off-grid systems. Their safety, longevity, and high-power density make them an ideal choice for these applications.

Introducing the HomeGrid Stack'd Series

The HomeGrid Stack'd Series is a high-capacity, high-output energy storage solution that leverages the power of LFP batteries. It is suitable for a wide range of applications, from small off-grid cabins to peak shaving in family homes in suburbia, and light commercial projects.

The Stack'd Series battery offers up to 14.4 kW continuous output and up to 24 kW surge. It has a capacity of up to 38.4 kWh per Stack, with a total capacity of up to 576 kWh. The batteries can be installed in less than 30 minutes, and heated batteries are available for colder climates.

The Stack'd Series also offers a high-voltage BMS and an outdoor case for added versatility and protection. The high-voltage BMS allows the Stack'd Series battery to be paired with HV inverters and offers an adjustable output voltage within the range of 260-400 V. The outdoor case is IP65/NEMA3R rated and is made from weatherable/UV-resistant ABS to better protect the Stack'd Series battery in direct weather but remember to stick with best practices and keep the battery out of direct sunlight.

The HomeGrid Stack'd Series is a testament to the power and versatility of LFP batteries, offering a robust and efficient energy storage solution for a wide range of applications.

Learn more about HomeGrid energy storage solutions.