Thermal management structure for battery cells

Battery cell thermal management structure using segmented phase change material placement and metal pins to minimize temperature deviation

This technology optimizes battery cell cooling and heating performance by segmenting phase change materials (PCM) with varying thermal conductivities based on the temperature gradient pattern of the cell, integrated with metal pins and high-thermal-conductivity sheets.

Conventional cooling plate methods suffer from temperature differences caused by coolant flow paths and temperature gradients between the top and bottom of battery cells, which can lead to cell degradation, fire risks, and reduced lifespan.

By dividing the PCM into multiple segments based on the battery cell temperature gradient and applying synthetic PCM with adjusted contents of heat transfer materials (such as metal foam or carbon materials) for each zone, this technology contributes to enhancing material competitiveness in the field of battery thermal management and safety systems.

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Key Features:

• A plurality of repeatedly arranged battery cells and a cell cooling unit thermally connected to one side of the cells for cooling and heating.
• A configuration including phase change materials disposed between each battery cell to absorb heat generated by the cells.
• A configuration that segments and places phase change materials with different thermal conductivities to correspond to the temperature gradient at each cell location.
• A thermal management structure including metal pins and high-thermal-conductivity sheets combined with phase change materials to form heat transfer paths.

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