Electrode Tab Layout for High-Density Battery Cell Thermal Control

The electrode plate is divided into multiple electrode pieces arranged in an array, with tabs distributed at different positions. This segmentation allows current to be collected at multiple points rather than concentrated at a single location, reducing current density and heat generation at any single point, thereby controlling local temperature rise while maintaining high volumetric energy density

The patent applies different tab configurations to different regions of the electrode plate. Multiple tabs are distributed at specific positions (e.g., both ends and intermediate positions) with optimized dimensions and spacing. This local optimization ensures that current collection and heat dissipation are adapted to the local current density distribution, preventing excessive temperature rise in high-current regions while maintaining overall high energy density

The patent utilizes both longitudinal and transverse directions of the electrode plate for tab placement. Instead of concentrating tabs at one location, tabs are distributed across the surface area in a two-dimensional arrangement. This spatial distribution optimizes current collection from different regions of the electrode while minimizing the impact on volumetric energy density, as the tabs occupy minimal space compared to the overall electrode volume

The patent optimizes specific parameters of the tabs including width, length, and spacing to achieve the desired balance. By adjusting these geometric parameters and the number of tabs, the current carrying capability is enhanced for temperature control, while the minimal space occupied by optimized tab dimensions preserves the volumetric energy density of the battery cell