Light-Transmitting Battery Module for Rapid Adhesive Curing
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Solution Overview
Problem
Existing battery modules lack efficient fixation methods for secondary batteries, leading to movement during vibrations and shocks, causing damage or connection failures, and require lengthy thermal curing processes for adhesives, increasing production time.
Innovation Solution
A battery module with a light-transmitting cell frame made of resin and a photocurable adhesive layer, utilizing total internal reflection and a diffuse reflection member to facilitate rapid photocuring of the adhesive, fixing the battery cells to a bottom plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a battery module includes a large number of battery cells (e.g., 96 cells), then the battery pack capacity increases, but the weight of the battery pack increases significantly
Solution Approach 1:
The battery pack is divided into multiple battery modules, each containing a subset of battery cells. This segmentation allows the system to achieve high total capacity while distributing weight across multiple manageable units, enabling selective placement and optimization of each module's position based on weight distribution requirements.
2Device complexity
If battery cells are arranged in a fixed configuration (e.g., 8 columns × 12 rows), then the battery module structure is simplified, but weight distribution becomes unbalanced causing vehicle body tilting
Solution Approach 1:
The patent employs asymmetric arrangements of battery modules within the battery pack to balance weight distribution. By strategically positioning modules with different numbers of cells or different weights at specific locations, the design compensates for inherent weight imbalances and prevents vehicle body tilting while maintaining structural simplicity.
Solution Approach 2:
The solution moves from a two-dimensional fixed grid arrangement to a three-dimensional spatial optimization approach. Battery modules can be positioned at different heights and locations within the vehicle, allowing weight distribution to be optimized across multiple dimensions rather than being constrained to a single flat arrangement.
3Quantity of substance
If battery cells are tightly packed to maximize space utilization, then the energy density increases, but heat dissipation becomes insufficient leading to overheating
Solution Approach 1:
The patent applies different structural characteristics to different regions of the battery module. Heat dissipation structures, cooling channels, and thermal management components are strategically positioned in specific local areas where heat generation is highest, rather than uniformly distributing all components throughout the module. This allows optimized heat dissipation in critical zones while maintaining high energy density in other areas.
Data Source
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AI summary
The present disclosure relates to a battery module and a battery pack including the same, and a battery module according to one embodiment of the present disclosure includes a bottom plate, a cell frame located on the bottom plate, a plurality of battery cells mounted to the cell frame, and an adhesive layer located between the bottom plate and the plurality of battery cells, wherein the cell frame has light transmittance.