Lithium Battery Heat Dissipation Container with Widening Pitch Walls
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Solution Overview
Problem
Lithium batteries face issues with temperature equalization and heat dissipation when connected in series or parallel, leading to overheating, potential thermal runaway, and increased space requirements, which can result in damage or explosion.
Innovation Solution
A temperature equalization and heat dissipation container structure featuring a base and housing frame with heat conducting walls, designed to accommodate lithium batteries in a way that allows for efficient heat transfer and prevents shaking, using materials with good thermal conductivity like aluminum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple lithium battery cells are connected in series or parallel to achieve large voltage or high current, then the power output is improved, but the occupied space increases and heat dissipation becomes insufficient
Solution Approach 1:
The battery assembly is divided into multiple sub-assemblies, each containing battery cells arranged in specific patterns (first and second arrays). This segmentation allows for optimized heat dissipation pathways while maintaining compact overall dimensions, as each sub-assembly can be independently designed for efficient thermal management.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by erecting heat conducting walls vertically and arranging battery cells in multiple layers and orientations. The first and second arrays are positioned at different heights and angles, effectively utilizing vertical space to reduce the horizontal footprint while maintaining power output.
2Power
If multiple lithium battery cells are connected in series or parallel to achieve large voltage or high current, then the power output is improved, but the heat dissipation capability deteriorates
Solution Approach 1:
Heat conducting walls made of aluminum or aluminum alloy serve as intermediary thermal management components. These walls are erected between battery cell arrays to conduct heat away from the cells. The heat conducting walls have thermal conductivity of at least 100 W/(m·K), effectively transferring heat from high-density battery regions to dissipation areas.
Solution Approach 2:
The patent implements localized thermal management by positioning heat conducting walls specifically between battery cell arrays where heat generation is most intense. The first and second heat conducting walls are strategically placed to address thermal hotspots in different regions of the assembly, creating non-uniform thermal management tailored to local heat generation patterns.
3Temperature
If effective arrangement and connection are planned to provide good temperature equalization and heat dissipation, then the heat dissipation capability is improved, but the device complexity increases
Solution Approach 1:
The heat conducting walls serve multiple functions simultaneously: they act as thermal management components for heat dissipation, structural supports for positioning battery cells, and spacing elements to maintain proper distances between cells. This multi-functionality reduces the need for separate components, thereby simplifying the overall device structure despite the sophisticated thermal management requirements.
Solution Approach 2:
The patent combines the thermal management function with the structural framework by integrating heat conducting walls into the assembly structure itself. The walls are part of the housing frame that also provides mechanical support, merging thermal management and structural functions into a single integrated system rather than separate subsystems.
4Temperature
If lithium battery cells are arranged to improve heat dissipation, then the temperature control is improved, but the stability against shaking deteriorates
Solution Approach 1:
The heat conducting walls are integrated with the housing frame to form a combined structural-thermal system. The walls are firmly connected to the base and extend upward to contact battery cells, creating a rigid framework that provides both thermal conduction pathways and mechanical stability to prevent shaking during operation.
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
The solution ensures effective temperature equalization and heat dissipation across multiple lithium batteries, preventing overheating and ensuring safe operation by allowing for even heat conduction and distribution, thereby reducing the risk of thermal runaway and maintaining the battery's appearance.
Implementation Method 1
a pair of first heat conducting walls spaced apart from each other and a pair of second heat conducting walls spaced apart from each other... the pair of first heat conducting walls are erected with a pitch gradually widening from bottom to top
Data Source
AI summary
A temperature equalization and heat dissipation container structure of a lithium battery and a combination module thereof are disclosed. The temperature equalization and heat dissipation container structure of lithium battery includes a base and a housing frame erected on the base. The housing frame includes a pair of first heat conducting walls spaced apart from each other and a pair of second heat conducting walls spaced apart from each other. The base, the first heat conducting walls and the second heat conducting walls are enclosed to form a hollow accommodating area, and the pair of first heat conducting walls are erected with a pitch gradually widening from bottom to top.