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Article | REF: SE2086 V1

Fire behaviour of batteries. Risks,testing and regulations

Author: Eric GUILLAUME

Publication date: January 10, 2026 | Lire en français

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    4. Gases, aerosols, and particles emitted during thermal runaway

    4.1 Gases emitted in the early stages of thermal runaway

    Before complete thermal runaway, a phase known as the "precursor" phase can be observed during an internal fault or a slow rise in temperature. In this phase, electrolyte solvents vaporize without combustion, producing a gaseous mixture rich in volatile organic compounds (VOCs). Organic carbonates such as ethylene carbonate (EC), dimethyl carbonate (DMC), diethyl carbonate (DEC), and ethyl-methyl carbonate (EMC)

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