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Let’s explore the science of

Thermal Runaway

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Overview

The above footage is provided courtesy of UL Research Institute’s Fire Safety Research Institute (FSRI). It depicts their actual research quantifying the hazards of thermal runaway in lithium-ion battery-powered e-mobility devices.

What do you notice when you observe this experiment? What do you wonder? How can we prevent this from happening?

Welcome to the Science of Thermal Runaway. We’re here to engineer solutions. To do that, first we must learn more about the problems themselves.

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1
Thermal Runaway
2
Batteries
3
Damage
4
Overcharge
5
Spread
6
Scenario

What is thermal runaway?

Thermal runaway is the problem we’re trying to solve. In order to solve this problem, we need to understand it.

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How does a lithium-ion battery work?

You know that thermal runaway is a phenomenon that can affect lithium-ion batteries. In order to understand thermal runaway, it’s important to understand what a lithium-ion battery is – and how it works.

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Why are battery-powered devices designed to prevent physical damage?

In most instances, lithium-ion batteries function normally, charging and discharging energy without issue. Thermal runaway can occur when something alters the normal function of a battery by physically damaging it.

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How does overcharge relate to thermal runaway?

Damage is not the only cause of thermal runaway. Another potential cause is overcharge.

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How does thermal runaway spread?

A lithium-ion battery is made of multiple lithium-ion cells. Often, lithium-ion batteries are stored and transported near many other lithium-ion batteries. Because of this, it is important to know what will happen to nearby cells if one cell enters thermal runaway.  

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Solve the scenario

With your updated understanding of thermal runaway, it’s time to revisit the thermal runaway scene we saw at the beginning of this exploration. You might observe multiple potential causes for the thermal runaway.

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The Science of Thermal Runaway

Engineering Solutions

From hoverboards to cell phones, portable electrical power makes life as we know it possible. But it can come with some dangerous possibilities. Let’s investigate, experiment and search for solutions.

The Science of Extraction to E-Waste

Trade-Offs & the Supply Chain

Safe and sustainable cities will depend on lithium-ion batteries to power our modern lives. But what are the costs?

The Science of Fire Forensics

Claims, Evidence and Reasoning

There’s been a fire. Your job is to figure out where the fire started, and how.

The Science of Fire Safety

Fire safety is a complex problem without a single answer. Learn how to engineer and design fire safe spaces.