Battery Pack Insulating Wall with Protrusions for Thermal Management
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Solution Overview
Problem
Existing battery packs face challenges in effectively insulating and cooling battery cells when stacked, leading to potential electrical and thermal performance issues.
Innovation Solution
The implementation of an insulating wall with protrusions and supporting members between battery cells, along with a frame and cell cover that includes air circulation paths and radiation sheets, enhances insulation and cooling by spacing cells apart and facilitating heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If battery cells are stacked closely together to increase energy density, then the productivity and space utilization are improved, but the thermal management and electrical insulation between cells deteriorate
Solution Approach 1:
The insulating wall is divided into multiple protrusions that contact different sides of the battery cell, segmenting the insulation function across multiple contact points. This allows effective insulation and cooling with a compact structure that doesn't sacrifice energy density
Solution Approach 2:
The insulating wall acts as an intermediary component between adjacent battery cells, providing both electrical insulation and thermal management. The protrusions create air gaps that facilitate heat dissipation while maintaining close stacking of cells
2Productivity
If battery cells are stacked closely together to increase energy density, then the productivity is improved, but the electrical insulation between cells deteriorates
Solution Approach 1:
The insulating wall is divided into multiple protrusions that contact different sides of the battery cell, segmenting the insulation function across multiple contact points. This ensures reliable electrical insulation while maintaining compact cell spacing for high energy density
Solution Approach 2:
The insulating wall provides localized insulation at the protrusion contact points with the battery cell, concentrating the insulation function where it is most needed. This allows effective insulation without requiring a large overall insulating structure
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 configuration improves the electrical performance and heat dissipation of the battery pack by ensuring effective insulation and cooling between cells, thereby enhancing the overall efficiency and reliability of the battery pack.
Implementation Method 1
The protrusions extend at least partly between opposite edges of the insulating wall and define space between the battery cell and regions between the protrusions
Implementation Method 2
a radiation sheet on a side of the insulating wall opposite the side on which the protrusions are located
Data Source
AI summary
A battery pack including a plurality of battery units with improved insulating and cooling properties between the battery units is provided. In one embodiment, a battery unit includes a battery cell and an insulating wall including a plurality of protrusions contacting the battery cell. The protrusions extend at least partly between opposite edges of the insulating wall and define space between the battery cell and regions between the protrusions.