English 
Views: 0 Author: Site Editor Publish Time: 2025-04-17 Origin: Site
Lithium batteries are in almost everything—phones, laptops, power tools, electric vehicles. Inside, they store high-density energy using chemicals. When damaged, overcharged, or exposed to high heat, these batteries can short-circuit. That short circuit sparks thermal runaway—a chain reaction of rising temperatures. Once it starts, it spreads fast. It doesn’t need outside air. The battery itself fuels the fire.
Unlike normal fires, lithium-ion battery fires release intense heat, gas, and even explosions. These fires reach over 1,000°C (1,832°F) in seconds. You’ll often see white smoke, then flames and even flying battery cells. They’re not just fire—they’re chemical reactions. That’s why typical fire responses don’t always work.
They spread fast. They’re hard to predict. And they produce toxic gases like hydrogen fluoride. If you try water or foam, it might not stop it—or make it worse. The battery can reignite even hours later. That's why battery fire safety is critical for homes, offices, warehouses, and especially EV repair shops.
A fire blanket is a safety device designed to smother flames. It’s made from fire-resistant materials like fiberglass or Kevlar. Most standard versions are rated for kitchen or clothing fires. They’re usually meant for Class A (combustible solids), Class B (flammable liquids), and sometimes Class F (cooking oil) fires.
They cut off oxygen. You throw or lay it over the flame. The blanket isolates the fire from the air, which puts it out. Simple and fast. Works great for pan fires or someone’s clothing. But does it work the same for lithium-ion battery fires?
| Fire Class | What It Covers | Fire Blanket Usage |
|---|---|---|
| A | Paper, wood, cloth | ✅ Yes |
| B | Flammable liquids (oil, petrol) | ✅ Yes |
| C | Flammable gases | ❌ No |
| D | Metals (including lithium) | ❌ No |
| F | Cooking oils and fats | ✅ Yes |
| E | Electrical fires | ⚠️ Limited |
As shown, standard fire blankets don’t cover Class D metal fires—which include lithium battery reactions.
A regular fire blanket can slow the spread. It might help control smoke and sparks in early stages. But it won’t stop thermal runaway. Once internal cells explode, the blanket can’t contain the heat or pressure. And it definitely won’t cool the cells inside.
Not heat-resistant beyond 500°C
Can't handle toxic gas release
No barrier against internal chain reactions
Won’t contain small explosions or shrapnel
Not reusable after intense fires
In one EV test lab, a technician used a regular blanket on a lithium scooter fire. The flames died for a few seconds—then reignited. In another case, firefighters wrapped an overheating laptop. It held off the flame for under a minute, then the device exploded. Most real-world tests show standard blankets don’t contain or cool lithium-ion battery fires effectively.
Temporary smothering, followed by re-ignition
Blanket might catch fire or melt
Toxic fumes released under the blanket
Pressure buildup can lead to violent ejection
False sense of safety
The reaction happens inside the battery. Even without air, heat and chemical fuel continue. It can reignite hours later. A regular blanket just doesn’t cool it enough or contain all the gases.
"Any fire blanket will do" — No. You need the right kind.
"If it’s not burning, it’s safe" — Not true for lithium fires.
"Once the blanket is on, you’re safe" — Not if toxic vapors or internal heat are still active.
Lithium fire blankets are made from multi-layer, heat-resistant fabrics like silica, carbon fiber, and ceramic. They can withstand over 1,000°C. Some come with built-in gas filters. Others include spark-resistant coatings.
| Feature | Standard Fire Blanket | Lithium Fire Blanket |
|---|---|---|
| Max Temperature Resistance | ~500°C | 1,000°C+ |
| Toxic Gas Containment | ❌ No | ✅ Yes |
| Explosion Containment | ❌ No | ✅ Yes |
| Fire Class Supported | A, B, F | A, B, D, E, Lithium |
| Reusability | ❌ One-time use | ✅ Some are reusable |
| Cost | Low | Medium to High |
Look for EN 1869, ISO 9151, or ASTM D6413 certifications. High-end lithium blankets often meet standards for Class D (metal fires) and Class E (electrical). They’re tested against lithium-ion battery modules, not just general fires.
Pull out the lithium fire blanket
Approach with protective gear
Cover the burning battery fully
Seal the edges—trap the heat and smoke
Let the reaction finish inside safely
Allow cooldown before removal
High-strength materials absorb shock, resist tearing, and reduce gas leakage. Some versions use filters to reduce toxic vapor escape. Blanket layers act like shields—keeping sparks, flames, and battery projectiles inside.
Many battery safety brands showcase demo videos—blankets containing EV fires, scooter blasts, or battery pack explosions. These often compare lithium fire blankets with standard ones. Success rates are visibly higher with specialized blankets.
EVs contain massive lithium battery packs. Workshops need blankets for rapid fire isolation. Especially during charging, disassembly, or repair.
Testing stations and battery cell lines are high-risk zones. Fire containment is essential. Blankets serve as quick-response tools before sprinklers kick in.
Large packs stored together raise the risk of thermal runaway spreading. Fire blankets prevent chain reactions during early ignition.
E-buses, scooters, and EVs crowd these spaces. Lithium fires in such public areas demand fast containment. Blankets avoid panic and larger damage.
Old or damaged batteries often arrive in bulk. Even a single shorted cell can trigger fire. Specialized blankets reduce danger without water or powder mess.
Powder? Messy and ineffective for internal battery fires. Water? Dangerous, especially with live circuits. Foam? Won’t handle pressure buildup. Lithium fire blankets do what others can’t—smother, seal, cool.
Blankets leave no mess. No runoff. Easy to remove once cooled. Ideal for clean rooms, labs, or electronics facilities.
Some blankets are reusable after minor incidents. Others can be inspected, cleaned, and packed again. Lower long-term costs compared to one-use extinguishers.
Wear gloves, face shield, heat suit if available. Unpack the blanket. Approach from the windward side to avoid smoke.
Toss or spread the blanket over the battery. Ensure full coverage, especially edges.
Don’t lift it to check. Let the fire burn out inside. Some reactions may take 10–30 minutes.
Once quiet, use thermal camera or sensor to check. Carefully remove, place in safe container.
Use the blanket first. Then foam or powder if needed. Blanket slows spread—buys time.
Thermal cameras show if it’s still hot inside. Cooling fans (safe ones) help post-fire heat dissipation.
Train staff to guide firefighters on scene. Knowing if a lithium battery is involved speeds response.
Standard blankets = wrong choice. Always use ones tested for lithium or Class D.
Fire might still be alive inside. Wait. Use sensors. Patience prevents second ignition.
Blankets only help if staff know how. Run drills. Label blankets. Store them near battery zones.
Regular audits. Identify high-risk areas. Add blankets to zones with EVs, power walls, or charging stations.
Teach use, handling, and response steps. Practice often. Make it second nature.
Cool, dry place. No flammable materials nearby. Separate large packs. Use fireproof cabinets or containment boxes.
Can I use a regular fire blanket on a lithium battery?
Not recommended. It won’t contain the fire or gas safely.
What kind of fire blanket is safe for lithium-ion batteries?
One rated for Class D or lithium fires, made of silica or ceramic layers.
What should I do if my EV battery catches fire?
Evacuate. Call emergency services. Use a lithium fire blanket if safe and trained to do so.
How hot does a lithium-ion battery fire get?
Over 1,000°C (1,832°F). Too hot for standard fire gear or blankets.
Can lithium fires be put out with water?
No. Water can react dangerously with battery components.
| Feature | Regular Blanket | Lithium Fire Blanket |
|---|---|---|
| Cost | Low | Higher |
| Safety | Basic | Specialized |
| Heat Limit | 500°C | 1,000°C+ |
| Toxic Gas | No protection | Yes |
Homeowners: Use lithium-rated blanket near e-bike or power banks
Businesses: Equip EV bays, storage areas
Industry: Add blankets to all battery lines and repair points
Lithium battery fires are not like regular fires. They burn hotter, faster, and longer. A regular fire blanket simply isn’t enough. Specialized lithium fire blankets provide the protection you need. Make the switch. Be prepared. Stay safe.
