Thermal runaway real-time detection and early warning device for high-capacity energy storage battery cell

Abstract

The invention provides a thermal runaway real-time detection and early warning device for a high-capacity energy storage battery cell. The thermal runaway real-time detection and early warning device comprises a hollow metal tube, a gas guide tube, a gas water removal device, a gas analysis device, a gas pressure detection device, a control unit and an alarm, the hollow metal tube leads out gas generated in the battery cell and is sequentially connected into the gas water removal device, the gas analysis device and the gas pressure detection device through the gas guide tube, the gas water removal device is used for removing electrolyte and moisture carried in the gas, the gas analysis device is used for analyzing gas components and proportion, and the gas pressure detection device is used for detecting gas pressure; the control unit receives and analyzes data of the gas analysis device and the gas pressure detection device in real time and controls the alarm to give an alarm under the condition that alarm conditions are met. According to the invention, the structure of the battery cell is reasonably utilized, the gas production characteristic of the battery cell is nondestructively detected in real time, early warning and early treatment of thermal runaway are realized, and the safety of the energy storage battery cell in the using process is effectively ensured.

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