What causes Lithium-ion battery fires?

The diagram below shows why thermal runaway can occur as a result of a damaged or compromised Li-ion battery.

Proven results on 
Lithium-ion batteries

Effectively extinguishes 
Class A fires

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Thermal-Runaway-v2-2023-WEB

What is thermal runaway?

Thermal runaway is the chemical process within the battery that produces heat and chemical gases very quickly before any flame appears.

These gases are not something you would want to be exposed to.  They are vented from the cells as a vapour cloud.

 

Carbon monoxide
Carbon dioxide
Hydrogen fluoride
Hydrogen chloride
Sulphur dioxide
Hydrocarbons such as ethane, methane, butane, hydrogen cyanide
Why are Lithium-ion batteries a fire risk?
What causes Li-ion battery fires?
What to use on Li-ion battery fires
What is AVD and how does it work?
Which safety products do I need?

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