Battery Module Layout With Compression Pads for Compact Cell Packing
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Solution Overview
Problem
There is a need for battery modules and packs that achieve high energy density while maintaining a compact size, necessitating a design that optimizes space usage for battery cells.
Innovation Solution
The design includes a battery cell assembly with a top and bottom plate, a sensing assembly, side plates, and compression pads with wire placing grooves, allowing for flexible printed circuit sensing wires and bus bar units connected via coupling pins, which maximizes space efficiency and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a plurality of battery cells are connected in series or parallel to configure a battery pack, then the output voltage and charge/discharge capacity are improved, but the size and weight of the battery pack increase
Solution Approach 1:
The battery pack is divided into multiple battery modules, each containing a specific number of battery cells connected in series. This segmentation allows the overall battery pack to achieve high voltage and capacity through modular assembly while keeping each individual module compact and manageable in size.
Solution Approach 2:
The battery cells are arranged in a three-dimensional configuration within each module, utilizing vertical stacking and lateral arrangement to maximize space utilization. This multi-dimensional arrangement enables higher cell density without proportionally increasing the overall pack footprint.
2Quantity of substance
If a plurality of battery cells are connected in series or parallel to configure a battery pack, then the charge/discharge capacity is improved, but the size and weight of the battery pack increase
Solution Approach 1:
The battery system is segmented into multiple modules that can be independently configured. Each module contains battery cells arranged to achieve optimal capacity-to-weight ratio, and multiple modules are combined to reach the total required capacity without excessive weight accumulation.
Solution Approach 2:
The invention optimizes the electrical parameters of the battery system by configuring specific numbers of cells in series and parallel within each module (e.g., 5 cells in series, 4 modules in parallel). This parameter optimization achieves the required capacity while minimizing the total weight through efficient cell utilization.
3Volume of moving object
If battery cells are densely packed to reduce battery pack size, then the volume is reduced, but the heat dissipation and safety become problematic
Solution Approach 1:
By dividing the battery pack into multiple separate modules, each module can have its own thermal management and safety mechanisms. This segmentation prevents heat accumulation from affecting the entire pack and allows for better heat dissipation through distributed arrangement of cells and cooling channels.
Solution Approach 2:
The battery cells are arranged in a three-dimensional configuration with strategic spacing and positioning that creates thermal pathways. This spatial arrangement maintains compact overall volume while incorporating vertical and lateral heat dissipation routes that prevent localized heat buildup.
Data Source
AI summary
A battery module includes: a battery cell assembly having a plurality of battery cells; a top plate configured to cover an upper side of the battery cell assembly; a bottom plate configured to cover a lower side of the battery cell assembly; a sensing assembly disposed to cover a front side and a rear side of the battery cell assembly; a pair of side plates disposed at side surfaces, respectively, of the battery cell assembly; and a pair of compression pads disposed between the pair of side plates and the battery cell assembly, respectively.