CTP Battery Cell Grouping With Bonded Cooling Plates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery cell grouping methods require numerous peripheral structural parts, occupying space and reducing energy density, and involve complex assembly processes.
Innovation Solution
A battery cell grouping structure utilizing thermal conductive adhesive to fix battery cells to liquid cooling plates, plastic supports, and a CCS assembly formed as a film, eliminating peripheral parts and simplifying assembly by connecting these components with adhesives and welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If peripheral structural parts are used to package battery cells into modules, then the cells can be grouped and integrated into the battery case, but the space of the cells is occupied and the energy density of the battery pack is reduced
Solution Approach 1:
The patent merges the liquid cooling plate with the cell grouping structure by integrating cooling channels directly into the support structure. This eliminates separate peripheral structural parts while maintaining both cooling functionality and cell grouping capability, thereby increasing the space available for cells and improving energy density.
Solution Approach 2:
The support structure serves multiple functions simultaneously: it provides mechanical support for cell grouping, integrates liquid cooling pathways, and acts as a structural component for battery pack assembly. This multi-functionality eliminates the need for separate peripheral parts, freeing up space for additional cells and improving energy density.
2Ease of manufacture
If a large number of parts of different types and quantities are used for cell grouping, then the cells can be assembled into modules, but the assembly process becomes complicated
Solution Approach 1:
The patent combines multiple separate components (support structure, cooling plates, and cell holders) into an integrated modular unit. This reduces the number of different part types that need to be assembled and simplifies the assembly process while maintaining the capability to group cells into modules.
Solution Approach 2:
The battery pack is divided into standardized modular units that can be assembled through simple repetitive processes. Each module is self-contained with integrated cooling and support features, reducing the complexity of assembly by making it a standardized, repeatable operation rather than a complex custom assembly process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This structure simplifies the assembly process, enhances energy density, and improves cooling efficiency while ensuring safety and structural integrity through adhesive overflow cavities and snap-fit connections.
Implementation Method 1
The plurality of battery cells are fixed to the at least one liquid cooling plate by means of thermal conductive adhesive
Implementation Method 2
The plurality of battery cells are fixed to the at least one liquid cooling plate by means of thermal conductive adhesive; the bottoms of the plurality of battery cells are fixed to the support body by means of structural adhesive
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
This application discloses a battery cell grouping structure and a CTP battery pack having the battery cell grouping structure. The battery cell grouping structure includes a battery cell assembly, including a plurality of battery cells and a plurality of liquid cooling plates, wherein the plurality of battery cells are arranged in an array, and at least one of the liquid cooling plates are arranged between and fixedly bonded to ones of the plurality of battery cells in every two rows of the array by a thermal conductive adhesive; a plastic support, including a support body, wherein bottoms of the plurality of battery cells are each fixedly bonded to the support body by a structural adhesive; and a cell connection system (CCS) assembly, formed as a film, wherein tops of the plurality of the battery cells are fixedly connected to the CCS assembly.