Multi-pass cooling plate

Multi-pass cooling plate with coolant circulating through folded-fin channels

This technology utilizes a folded-fin flow plate to create a counter-flow structure where coolant flows in one direction along the first set of channels, passes through a return plenum, and then flows in the opposite direction along the second set of channels, ensuring uniform temperature distribution across the entire cooling plate.

Conventional serpentine channel or roll-bond methods suffer from temperature gradients that increase along the flow path, leading to non-uniform temperatures that reduce battery cell efficiency and overall thermal management performance.

By incorporating first and second channels alternately formed in a transverse direction on both sides of the flow plate, upper and lower cases for sealing, and inlet/outlet plenums with partition plates, this technology provides a practical solution for developing next-generation battery thermal management and safety systems.

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Key Features:

• A flow plate bent into a folded-fin shape with multiple first and second channels formed alternately along the transverse direction on both sides of the plate.
• A pair of covers coupled to both sides of the flow plate, sandwiching it in between.
• A flow path structure where coolant flows in one direction along the first channels, passes through a return plenum, and flows in the opposite direction along the second channels.
• A multi-pass cooling plate that increases cooling surface area through multiple first and second channels to enhance cooling efficiency.

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