Vacuum impregnation systems and sealant manufacturer Godfrey & Wing has introduced a single-point impregnation process aimed at making EV battery pack assemblies and drive motor case castings safer and more reliable.
This patent-pending process seals porous leak paths that form naturally in metal castings used in battery assemblies. It is applicable in a completed assembly, or can be used for individual castings before assembly.
The company says that sealing these leak paths helps prevent coolant leakage, avoiding defects, recalls and possible failures.
Single-point impregnation eliminates the rigors of traditional vacuum impregnation, as only the leak path is subjected to the process, while the other components remain untouched. The process ensures the leak path is sealed with no risk of contamination or damage, making it ideal for fully assembled EV batteries which contain delicate parts and electronics.
“As the automotive industry evolves quickly to meet consumer demand for EVs, it needs new, proven and effective manufacturing processes,” says Alexander Alford, CEO at Godfrey & Wing.
Source: Godfrey & Wing