Cylindrical Cell Battery Pack Assembly for Rapid Thermal Transfer

The heating and heat-dissipating components are divided into multiple segments that can be independently attached to the battery pack structure. This segmentation allows each component to be positioned separately without experiencing repelling forces, simplifying the assembly process while maintaining effective temperature control across the cylindrical cells.

The patent introduces an intermediary structure (the battery pack housing or mounting framework) that mediates between the heating/heat-dissipating components and the cylindrical cells. This intermediary provides stable attachment points, eliminating the need for direct zigzag attachment to cell surfaces and reducing assembly complexity.

Instead of attaching heating components to the side surface (one-dimensional contact), the patent positions heating components to contact the cylindrical cells at multiple points along their length or uses a heating structure that wraps around the cells. This dimensional change increases the effective heat transfer area and reduces the time required to heat the internal electrode structure.

The heating components are positioned and pre-configured before battery operation to ensure optimal thermal contact with the cylindrical cells. This preliminary arrangement of heating elements minimizes the initial heat transfer distance and ensures rapid temperature increase when heating is activated.

The heating components are activated before the battery is put into operation under ultra-low temperature conditions. This preliminary heating action raises the internal temperature of the Li-ion battery cells to an optimal operating range, ensuring that the battery can then perform reliably without the performance deterioration that would otherwise occur at low temperatures.

The heating components are integrated into the battery pack system and automatically activated when temperature sensors detect ultra-low temperature conditions. The system self-regulates by providing heat when needed, maintaining optimal operating temperature and ensuring reliable operation without external intervention.