Lithium-ion batteries are one of today’s indispensable energy sources. They are used in many areas—from smartphones and electric vehicles to solar energy systems and medical devices. However, despite all these advantages, they also pose a serious fire risk in case of uncontrolled energy release.

So, why do lithium batteries cause fires? What is the mechanism behind this hazard? Here are the answers:

⚠️ 1. What is Thermal Runaway?

The most common cause of fires in lithium batteries is a chain reaction called thermal runaway.

This process involves:

• An internal short circuit occurring within the battery.
• Rapid temperature rise (between 150°C and 1,000°C).
• This heat triggers neighboring cells.
• Chemical structure breaks down, releasing gases.
• Result: Fire or explosion.

Because this reaction develops very quickly, by the time it is detected, it is often too late.

🔋 2. Mechanical Damage and External Impact

When lithium batteries are subjected to impact or puncture, they may cause internal short circuits.

This increases the risk of thermal runaway.
Examples include:

• Crushing of boxes during cargo transport
• Electric vehicle accidents
• Errors during assembly

🌡️ 3. Overcharging or Overheating

Charging batteries beyond the recommended voltage or operating them at high temperatures for extended periods invites fire hazards.

• Environments above 60°C are especially risky.
• Low-quality chargers pose a significant threat.
• Internal resistance increases, causing self-heating.

⚙️ 4. Manufacturing Defects or Low Quality

Poor-quality cells, missing safety components, and faulty soldering can also cause fires.

Cheap, unregulated batteries are particularly dangerous in this regard.

🔥 5. Why Are Lithium Fires Dangerous?

• They can reignite spontaneously.
• Ordinary fire extinguishers are ineffective.
• They emit dense smoke and gases.
• Using water to extinguish increases the danger.

✅ Special Solution Against Lithium Fires: Envoy EX

Envoy EX, developed by Envoy, is a specially formulated extinguishing solution designed specifically for lithium-based fires.

While conventional extinguishers fail, Envoy EX:

• Suppresses heat
• Stops the reaction
• Eliminates the risk of re-ignition

Conclusion

Lithium batteries make life easier but also carry high risks. Understanding these risks and taking appropriate precautions is vital for both personal safety and corporate responsibility.

Remember: Ordinary solutions are not enough for lithium fires. Specialized solutions are required.

👉 For more information and professional support, visit the Envoy EX product page.