What are the causes of electric vehicle fires?
2 Answers
The causes of electric vehicle fires are aging circuits and battery short circuits. Below is relevant information about electric vehicle fires: 1. Internal causes: (1) Aging circuits: With prolonged use of electric vehicles, the connecting wires inside the vehicle are prone to aging and short-circuiting. (2) Battery short circuits: Generally, when an electric vehicle catches fire, it is due to improper battery installation. Many dealers install the battery too tightly, causing the connecting wires to cross, which after long-term use and friction can lead to short circuits, overheating, and battery combustion. 2. External causes: Overcharging is also a major cause of electric vehicle fires. Normally, charging an electric vehicle for about eight hours is sufficient to meet user needs. In reality, many users charge their vehicles overnight for convenience, charging for 12 hours or even longer. This not only fails to produce positive effects but also reduces battery performance.
Common causes of spontaneous combustion in electric vehicles include thermal runaway issues with batteries, particularly lithium-ion battery components that are prone to internal short circuits due to overcharging or physical impacts, generating excessive heat and leading to fires. Another factor is charging system malfunctions, such as using incompatible charging stations that cause voltage instability, or rapid charging in high-temperature environments that accelerates battery aging. Through my research on similar cases, I've found manufacturing defects like poor sealing leading to electrolyte leakage also pose significant risks. I recommend owners use certified charging points and regularly check battery health, as these measures can significantly reduce risks. Currently, many automakers are developing safer solid-state battery technology, which may potentially eliminate such issues in the future.
