Battery Cell Arrangement for Hotspot-Aligned Cooling
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Solution Overview
Problem
High-voltage energy storage cell modules in vehicles face challenges due to uneven heat distribution, which limits operational performance and safety, as random cell arrangement often fails to effectively cool temperature hotspots, leading to reduced current and power capacity, accelerated aging, and potential damage.
Innovation Solution
A cell arrangement where energy storage cells are aligned based on temperature markings on their housings, ensuring direct contact with a heat transfer element for optimized cooling, allowing for targeted temperature management and reduced thermal stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If energy storage cells are arranged randomly in the cell module, then the manufacturing process is simple and fast, but the temperature hotspots cannot be effectively cooled leading to reduced operational performance and safety
Solution Approach 1:
The patent applies markings to the cell housings before assembly, indicating the location of temperature hotspots. This preliminary action enables the subsequent alignment of cells with cooling elements during module assembly, ensuring that hotspots are positioned to receive optimal cooling without requiring complex post-assembly adjustments or sophisticated manufacturing processes.
Solution Approach 2:
The patent implements differential cooling by aligning specific regions of cells (hotspots) with cooling elements based on markings. This creates localized cooling zones where heat is actively managed, while other regions of the cells operate under normal conditions. The cooling strategy is applied selectively to where it is most needed rather than uniformly across all cells.
2Reliability
If energy storage cells are aligned according to temperature markings, then operational performance and safety are improved through optimized cooling, but the manufacturing process becomes more complex
Solution Approach 1:
The markings are applied to cell housings during the cell manufacturing process itself, before the cells are assembled into modules. This preliminary marking ensures that when cells are later assembled, the alignment with cooling elements can be achieved through simple visual or automated recognition of the markings, without requiring complex sorting or positioning systems.
Solution Approach 2:
The patent uses visible markings (which may include color coding) on the cell housings to indicate temperature hotspot locations. These markings provide a simple visual cue that can be easily detected by human operators or simple machine vision systems during assembly, enabling reliable cell alignment without requiring sophisticated sensors or complex manufacturing equipment.
3Loss of energy
If energy storage cells are aligned with heat transfer elements based on markings, then heat dissipation is optimized, but the cell arrangement requires higher positioning precision
Solution Approach 1:
The markings are pre-applied to indicate the exact location and orientation of temperature hotspots on each cell. During assembly, these markings serve as alignment guides that enable workers or automated systems to quickly and accurately position cells relative to cooling elements, achieving the required precision through simple visual reference rather than complex positioning mechanisms.
Solution Approach 2:
The alignment requirement is localized to specific regions of the cells (the hotspot areas indicated by markings) rather than requiring precise positioning of entire cells. This localized alignment approach reduces the overall positioning precision requirements while still achieving effective heat dissipation at the critical hotspot locations.
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 approach enhances operational efficiency and safety by ensuring uniform cooling, reducing aging, and extending the life of energy storage cells by aligning hotspots with cooling elements, thus maintaining optimal performance without increasing costs.
Implementation Method 1
the cell arrangement comprises a heat transfer element, which is designed to adjust the temperature of the cell arrangement
Data Source
AI summary
A cell arrangement, in particular a cell module, includes a plurality of energy storage cells, the cell housings of the energy storage cells having markings, and the energy storage cells being oriented or positioned according to the markings.