Battery Cooling Housing With Protrusions For Conductive Elements
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Solution Overview
Problem
Existing cooling systems for battery systems, particularly those with electrochemical pouch cells, often fail to provide sufficient cooling and are costly due to the use of liquid cooling fluids, which are avoided for cost and safety reasons, leading to inefficient heat management and reduced service life of electrochemical cells.
Innovation Solution
A cooling system with a housing featuring structured side walls and protrusions to accommodate thermally conductive elements between stacked electrochemical cells, allowing direct heat transfer from the cells to the housing and external cooling fins, enhancing heat conduction efficiency and enabling a slim, cost-effective design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If liquid cooling fluids are used inside the housing, then cooling efficiency is improved, but cost and safety are worsened
Solution Approach 1:
The patent introduces thermally conductive elements as intermediary components between the electrochemical cells and the housing. These elements mediate heat transfer from the cells through the housing walls to the external environment, achieving effective cooling without requiring liquid cooling fluids inside the housing, thus maintaining safety while improving thermal management
2Ease of manufacture
If plastic housing with low thermal conductivity is used, then cost is reduced, but heat transfer capability is worsened
Solution Approach 1:
The patent applies local quality by integrating thermally conductive elements at specific locations within the housing structure where heat needs to be dissipated. The housing maintains its cost-effective plastic construction overall, but localized thermal pathways are created through the protrusions and embedded conductive elements, enabling effective heat transfer without compromising the economical plastic housing design
3Temperature
If metal plates are arranged between pouch cells, then heat conduction is improved, but device complexity and production cost are worsened
Solution Approach 1:
The patent merges the housing structure with the thermal management function by integrating protrusions directly into the housing walls that accommodate the thermally conductive elements. This combination eliminates the need for separate metal plate components between cells, reducing device complexity and production costs while maintaining effective heat conduction pathways from the cells to the external environment
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 provides efficient heat transfer from the battery system to the outside environment, improving cooling efficiency, stability, and safety while reducing production costs, enabling a more reliable and cost-effective battery system.
Implementation Method 1
allows for direct transfer of heat from the electrochemical cells of the battery system to the housing of the battery system
Implementation Method 2
The greater the number of protrusions, the greater number of thermally conductive elements that may be used to transfer heat from the cells to outside of the battery system. Furthermore, the larger the size of an area where heat is conducted through the wall of the housing to the surrounding environment
Data Source
AI summary
A cooling system for cooling electrochemical cells of a battery system is provided. The cooling system includes a housing configured to accommodate a plurality of stacked electrochemical cells. The housing includes a structured side wall having a protrusion therein, and the protrusion is adapted to receive a section of a thermally conductive element arranged between two adjacent ones of the stacked electrochemical cells.