Single-layer and stacked immersion-cooled battery module

Abstract

A single-layer and a stacked immersion-cooled battery module are disclosed. The single-layer immersion-cooled battery module comprises a tank, a top cover, and a gas filtration device. The tank houses battery cells and a battery management circuit board, fully immersed in insulating cooling liquid. A gas discharge channel and a pressure relief and overheat release device are arranged between the tank and the top cover to regulate the pressure within the sealed space. The pressure relief and overheat release device automatically opens the gas discharge channel in response to internal pressure, allowing the generated gas to be released. The gas filtration device is positioned above the top cover, covering the pressure relief and overheat release device, and includes a gas discharge opening. The gas filtration device filters and adsorbs the generated gas before releasing it, ensuring the battery module’s safety, cooling efficiency, and durability.

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