Soaking Partition With Capillary Cooling for Battery Temperature Equalization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing heat conduction partitions in battery modules fail to effectively address the issue of large temperature differences between different areas of batteries, which affects the cycle life of the batteries.
Innovation Solution
A soaking partition is introduced, which includes a hollow cavity with a cooling medium and a capillary element, positioned between batteries to facilitate heat transfer and temperature equalization across the battery module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat conduction partition is used between batteries, then heat transfer from batteries to cooling plate is improved, but temperature difference between different areas of batteries is not reduced
Solution Approach 1:
The patent introduces a soaking partition containing phase change material that absorbs and releases heat through phase transitions (solid-liquid-solid), enabling temperature equalization between batteries. The phase change material undergoes phase transition at specific temperature ranges to actively regulate temperature differences, which conventional heat conduction partitions cannot achieve.
Solution Approach 2:
The soaking partition acts as an intermediary component between batteries and the cooling plate, mediating heat transfer through its porous structure and phase change material. This intermediary layer distributes heat more uniformly across battery surfaces, reducing temperature differences that direct heat conduction partitions fail to address.
2Quantity of substance
If battery capacity is increased, then energy storage performance is improved, but heat dissipation difficulty increases and temperature difference between areas enlarges
Solution Approach 1:
The soaking partition applies local quality enhancement by distributing phase change material throughout the battery module structure. Different regions of the module receive localized thermal regulation through the porous partition structure, addressing the uneven heat distribution problem that arises with high-capacity batteries.
Solution Approach 2:
The patent introduces a new dimensional approach by placing soaking partitions in the spatial arrangement between batteries (horizontal dimension) rather than only relying on bottom cooling plates (vertical dimension). This multi-dimensional heat dissipation strategy effectively addresses temperature differences in high-capacity battery configurations.
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 soaking partition effectively reduces the temperature difference between different areas of the battery module by conducting heat from batteries to the direct cooling plate, where it is dissipated, thereby improving the cycle life and performance of the batteries.
Implementation Method 1
a capillary element bonded to at least a portion of an inner surface of the first side wall or at least a portion of an inner surface of the second side wall, where at least a portion of the capillary element is in contact with the cooling medium
Implementation Method 2
heat emitted from each of the batteries is transferred to the liquid cooling plate by the heat conduction partition and taken away by the liquid cooling plate
Implementation Method 3
a first housing provided with a hollow first cavity, where at least a portion of the first cavity is configured as a closed cavity... a cooling medium placed in the closed cavity
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A soaking partition, a direct cooling plate, and a battery module are provided. The soaking partition includes: a housing, where at least a portion of an inner cavity of the housing is configured as a closed cavity, and a wall surrounding the closed cavity includes a first side wall and a second side wall; and a capillary element bonded to at least a portion of an inner surface of the first side wall or the second side wall, where at least a portion of the capillary element is in contact with a cooling medium in the closed cavity.