In situ Análise de gases e caracterização do fogo de células de íons de lítio durante escoamento térmico utilizando câmara ambiental

Overview

This article describes a test procedure developed to characterize thermal runaway and fires in lithium-ion cells through in situ measurements. The method aims to simulate catastrophic hazards in a single cell, providing consistent results.

Key Study Components

Area of Science

• Battery safety
• Thermal runaway
• Environmental testing

Background

• Thermal runaway can occur due to various causes.
• Different causes can lead to varying worst-case outcomes.
• Understanding these events is crucial for battery safety.
• In situ measurements enhance the reliability of test results.

Purpose of Study

• To simulate a catastrophic hazard in lithium-ion batteries.
• To provide a consistent testing protocol for thermal runaway.
• To measure various parameters in a single test.

Methods Used

• Synchronization of data acquisition from multiple sensors.
• Use of FDIR (Fault Detection, Isolation, and Recovery).
• Video recording of the test events.
• Following a standard operating procedure for device operation.

Main Results

• The test procedure effectively characterizes transient events.
• Data collected provides insights into thermal runaway dynamics.
• Results demonstrate the importance of in situ measurements.
• Consistency in results supports the reliability of the method.

Conclusions

• The developed procedure is a valuable tool for battery safety research.
• In situ measurements enhance understanding of thermal events.
• Future studies can build on this method for improved battery designs.

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