Battery Cell Tab-End Heat Conduction for Uniform Thermal Distribution

The patent merges the thermal management function with the existing battery cell structure by integrating a thermally conductive member into the end cap or housing that already contains the tabs. This integration allows heat dissipation without adding separate, independent thermal management components, thus improving heat distribution while minimizing increases in device complexity

The patent introduces a thermally conductive member as an intermediary component between the heat-generating main body portion and the tabs/end cap. This intermediary facilitates heat transfer from the main body to the tabs, which then conduct heat to the external environment, effectively addressing the uneven heat distribution problem without requiring fundamental structural changes

The patent applies local quality by creating a thermal conductivity gradient within the battery cell structure. The main body portion maintains its original thermal conductivity, while the thermally conductive member integrated into the end cap has higher thermal conductivity specifically at the heat dissipation interface. This localized enhancement optimizes heat transfer from the main body to the tabs without requiring uniform thermal conductivity enhancement throughout the entire structure, thus maintaining heat transfer efficiency

The patent changes the thermal conductivity parameter of specific components (the end cap or housing region containing the thermally conductive member) to be higher than the main body portion. This parameter change creates an optimal thermal pathway where heat flows efficiently from the lower conductivity main body through the higher conductivity thermally conductive member to the tabs, improving overall heat dissipation efficiency while maintaining appropriate thermal gradients