Close-coupled dry battery system for hybrid and electric vehicles

A battery pack apparatus comprising

• a first cell bank including a first tray and at least one first battery cell coupled to the first tray,
• a second cell bank including a second tray and at least one second battery cell coupled to the second tray, and
• a laminated cooling plate in contact with the first cell bank and the second cell bank such that the laminated cooling plate is situated in between the first cell bank and the second cell bank, the laminated cooling plate including a plurality of face sheets forming a fluid inlet and a fluid outlet and a plurality of internal sheets stacked together and each forming a plurality of fluid passages connecting the fluid inlet to the fluid outlet, the internal sheets formed to include fluid pathways each defined through a thickness of the respective internal sheet and collectively defining the fluid passages, wherein each internal sheet includes a number of interruptions arranged along the fluid pathways such that none of the fluid pathways individually form an uninterrupted flow path along the respective internal sheet, wherein the fluid inlet is located on one side of the laminated cooling plate and the fluid outlet is located on an opposite second side of the laminated cooling plate,
• wherein each fluid pathway forms an S-shape circuit, the S-shape circuits formed in each internal sheet are substantially similar to the S-shape circuits formed in the other internal sheets, and the S-shape circuits of each internal sheet are aligned with corresponding S-shape circuits of the other internal sheets to form S-shaped channels that extend between the plurality of face sheets, none of the interruptions on each internal sheet is aligned with the interruptions on the other internal sheets, such that fluid flows around the interruptions in the fluid passages.