Chillplate Design Validation and Production Transition

A liquid-cooled chill plate was designed to maintain the temperature of VDA-355 battery modules using an ethylene glycol/water mix. The prototype featured a two-piece aluminum design bonded with structural epoxy and underwent mechanical tests—bend, twist, pressure, and thermal shock—to validate performance and structural integrity. For production, stir-welded chill plates with the same flow path were used, employing a different manufacturing method. Future versions will incorporate internal fins to enhance heat transfer and improve performance.