Staggered Battery Module Layout for Heat and Expansion Control

The patent employs asymmetric arrangement of battery cells with different lengths in adjacent rows, where the centerlines of battery cells in adjacent rows are offset rather than collinear. This asymmetric configuration enhances structural rigidity and distributes stress more effectively, preventing extrusion and deformation of packaging structures while maintaining manufacturing feasibility through standardized cell modules.

The patent segments the battery module into standardized rows of battery cells with different lengths (first-length cells and second-length cells). This segmentation allows for modular assembly where cells are arranged in alternating patterns, achieving enhanced structural strength and heat dissipation while maintaining ease of manufacture through standardized cell designs and repetitive assembly patterns.

The patent implements local quality variation through staggered arrangement of battery cells with different lengths, creating alternating patterns that optimize both space utilization and heat dissipation. The offset centerlines create natural thermal pathways and improve coolant flow distribution, ensuring uniform temperature across high-density cell arrangements while maintaining maximum space utilization.

The patent applies preliminary anti-action by pre-configuring the battery module with staggered cell arrangements that anticipate and counteract expansion forces. The offset centerlines of adjacent rows create a interlocking structure that resists extrusion and deformation before expansion occurs, distributing thermal and mechanical stresses uniformly across the module and preventing fracture of packaging structures.