The Home of Fire Suppression Science
The Fire Stops Here!
Full Circle Lithium has developed FCL-X – a specialized extinguishing agent – from the ground up, to tackle the growing challenge of extinguishing hazardous lithium-ion battery (LIB) fires. FCL-X has undergone rigorous internal and external testing – demonstrating exceptional cooling capabilities, reduced off-gassing, and prevention of reignition in LIB fires.
Due to its extreme heat absorption, FCL-X is currently being tested on many different applications beyond LIB fires, as well as in different fire scenarios.
Our Fire Suppressant Solution
What is FCL-X?
FCL-X is an aqueous solution, primarily water, enhanced with a crucial active ingredient, making it uniquely effective for LIB fires. Its high-water content allows for superior penetration of the LIB compared to non-water-based agents. Unlike foam and vermiculite, which act as temporary barriers on the surface of the ongoing chemical reaction, FCL-X penetrates and halts the reaction at the cell level.
A Growing Challenge
Lithium-ion Battery Fires are Complex and Dangerous
Lithium-ion battery fires are complex and dangerous. They involve intense heat, toxic gas release, and the risk of reignition – even after the flames are out. FCL-X is designed to stop these fires at the source by addressing the unique chemical reactions happening inside the battery.
Penetrates the
Battery During Thermal Runaway
FCL-X soaks into the battery structure, reaching deep into cells that are undergoing thermal runaway. This direct contact helps interrupt the chain reaction before it spreads to other cells in the battery pack.
Rapidly Cools the Fire and Lowers Surface Temperature
As a water-based agent, FCL-X cools the fire quickly, reducing the heat energy driving the reaction.
Lower temperatures slow down chemical reactions, contain the spread, and give responders control.
Prevents Reignition
and Flashovers
Even after the flames are out, a battery can reignite minutes – or even hours – later. FCL-X creates a protective barrier that helps stabilize the battery and prevent dangerous flare-ups.
Buffers Lithium Oxidation and Suppresses Hydrogen Generation
FCL-X interrupts the lithium oxidation process that fuels the fire and generates flammable hydrogen gas. By slowing this process, it limits the risk of gas buildup and secondary explosions.
Neutralizes Harmful Chemicals Like Hydrogen Fluoride (HF)
Products
FCL-X Fire Suppressant Solutions
The FCL-X Mission
FCL-X Core Principles
From the science of innovation, to being guided by our ethos of safety first, to ongoing education and regulatory support, FCL-X partners with its customers or the long-term.
Core Principles
Why FCL-X?
Science Driven Performance
Validated by Third-Party Testing
Collaborate with certified labs for burn testing, UL assessments, and toxicity analysis.
Thermal Runaway Control
Design to interrupt and contain cascading lithium-ion cell failure – not just visible flames.
No Reignition Guarantees
Aim for suppression formulas that prevent heat rebuilding and vapor reformation.
Data Transparency
Publish suppression times, cooling curves, and comparative efficacy vs. traditional agents.
Scenario-Based Demonstrations
Include side-by-side burn footage for e-bike, residential ESS, and EV packs to showcase adaptability.
Toxicology & Environmental Profiling
Provide SDS sheets, PFAS-free certifications, and post-burn residue assessments.
Safety Driven Technology
Non-PFAS Formulation
FCL-X uses a proprietary suppressant blend free from perfluorinated chemicals (PFAS), avoiding long-term health risks tied to cancer, liver toxicity, and bioaccumulation.
Respiratory Safety
Upon deployment, FCL-X minimizes hazardous smoke and airborne particulates – reducing the risk of inhalation exposure, especially critical for non-SCBA responders.
Low Residue Toxicity
After burn tests, FCL-X shows non-corrosive, non-conductive residue that doesn’t pose dermal or respiratory hazards during post-fire cleanup or inspection.
No Secondary Combustion Risk
FCL-X does not emit flammable or explosive gases when heated – eliminating the risk of suppressant-induced ignition or overpressure scenarios.
Minimized Exposure
Suppression agents should reduce toxic smoke, airborne particulates such as HF and CO, and be an environmentally friendly product.
Rapid Knockdown & Cooling
Measurable cooling to stop thermal runaway and re ignition, which reduces firefighter fatigue on scene.
Education & Advocacy
Multi-Segment Education Campaigns
Custom messaging for emergency responders and High Hazard Potential (HHP) users across education, healthcare, industrial, and commercial sectors – highlighting lithium-ion fire risks and tailored mitigation strategies.
Visual Risk Communication
Use thermal images, burn footage comparisons, and hands-on training to educate technical and non-technical audiences on fire behaviors and mitigation.
Policy & Standards Leadership
Support NFPA, UL, and industry roundtables, supporting efforts to define lithium-ion suppression categories and best practices.
Community Engagement
Sponsor training events, safety days, and co-branded awareness campaigns.
Thought Leadership Content
Publish white papers, social media posts, and explainer videos positioning FCL-X as the go-to resource for lithium-ion suppression insights.
Regulatory Advocacy Support
Equip stakeholders with data, graphics, and talking points to influence local code updates and firefighting protocols.
FCL-X
Products Testing Validation
Tests are focused on different scenarios and environments to ensure reliability and versatility.
Leading Technical Team Expertise with 100 Years of Combined Firefighting Experience
Meet Our Team
Begin the Process
Contact Us
Have questions about lithium-ion battery fire suppression? Want to schedule a demo or learn more about how FCL-X™ can protect your department or facility? Contact Full Circle Lithium today.
Our team is ready to help you find the right fire protection solution, provide product support, or connect you with a local dealer. Let’s work together to make battery fire response safer, faster, and more effective.
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