Aerosol Fire Suppression: Providing Extra Protection for LFP Batteries

April 21, 2026

As residential and commercial energy storage systems and electric vehicles rapidly grow in the U.S. market, battery safety has become one of the biggest concerns for users.

Although LFP batteries are inherently stable, thermal runaway can still occur under extreme conditions, leading to flame spread or damage to surrounding equipment.

Traditional fire suppression methods, such as water-based or dry powder extinguishers, are often difficult to use inside enclosed battery units and may damage the batteries or electronic equipment, or even create other hazards.

To address this issue, we have integrated aerosol fire suppression systems into some of our battery products. In products such as the Cubix100pro, wall-mounted batteries, and the Powermage 314 series, you can see the aerosol module, which is typically installed on top of the battery cells.

Pinout on the inverter side:RS485 communication port

Eco-Worthy Cubix 100 Pro | 48V 100AH Server Rack Battery | Bluetooth & WiFi | Low-Temp Charge | 10 Years Warranty

$949.99

48V 100AH Wall - Mount Lithium Battery LiFePO4 | - 4℉ Charge Available | Bluetooth & WiFi | 10 Years Warranty - lithium battery - ECO - WORTHY

Eco-Worthy 48V 100AH Wall-Mount Lithium Battery LiFePO4 | -4℉ Charge Available | Bluetooth & WiFi | 10 Years Warranty

$889.99

ECO - WORTHY PowerMega | 51.2V 314AH Lithium Battery | Bluetooth & WiFi | Active Balance | 10 Years Warranty - lithium battery - ECO - WORTHY

Eco-Worthy PowerMega 314 | 51.2V 314AH Lithium Battery 16kWh | Bluetooth & WiFi | Active Balance

$2,259.99

What is an aerosol and how does the system work?

Physical suppression:

Metal salt particles in the aerosol melt or vaporize at high temperatures, absorbing heat and lowering the flame temperature, which slows down the fire.

Chemical suppression:

Solid particles and metal ions from the aerosol react with active radicals in the flame, cutting down the number of radicals and slowing combustion.

Reducing oxygen concentration:

The aerosol extinguishing process generates inert gases like N₂ and CO₂, which lower oxygen levels in the flame and stop the burning process.

We use S-type aerosol, which also has two major advantages.

Safe for electrical equipment

Title

When strontium nitrate in S-type aerosol breaks down, it does not take in moisture from the air. This means it won't form conductive or corrosive liquid films, so electrical devices stay protected.

Harmless to humans

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S-type aerosol gives off mostly N₂, a little CO₂, and solid metal salts—none of which are toxic.

An aerosol system mainly consists of two parts: an initiator (igniter) and an aerosol generator.

When an abnormal cell temperature is detected (our aerosol activates within the temperature range of 160°C to 180°C) or flames are present, the aerosol system is triggered, releasing particles through a designated outlet:

The solid extinguishing agent inside rapidly releases micron-sized particles into the air, forming a dense cloud.

These particles capture free radicals generated during combustion — the "fuel" that sustains a flame — thereby chemically blocking the spread of thermal runaway.

At the same time, the system also lowers the local oxygen concentration, effectively suppressing flame spread.

In short, the aerosol fire suppression system uses chemical reactions combined with local environmental regulation to quickly suppress combustion. Compared to water-based extinguishing methods, it offers an efficient and reliable solution.

It responds rapidly in the early stages of a fire, suppressing flame spread through chemical reactions, without affecting the normal operation of the battery or related electronic equipment. This makes it particularly well‑suited for energy storage systems.

We remain dedicated to battery quality and safety, committed to delivering a dependable energy storage experience!

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