Overlapping end and side connectors distribute clamping loads more evenly across power storage devices for a more secure battery assembly.
A restricting member braces the battery case lid against pressure-driven lift, reducing joint cracking and gas leakage.
By removing separate cell cases and reinforcing the cover-module coupling, this layout raises energy density while preserving pressure resistance.
Air pressure difference constrains stacked battery modules inside a sealed housing, cutting assembly effort while limiting stress on electronics.