Shared Thermal Management Layout for High-Density Battery Cells
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Solution Overview
Problem
Existing battery technologies face challenges in improving energy density while effectively managing temperature uniformity and structural stability, particularly in stacked battery cells, leading to high space occupation and potential deformation during thermal runaway.
Innovation Solution
A battery design where multiple battery cells are sandwiched between two adjacent thermal management components, sharing a heat exchange cavity, which enhances temperature regulation, structural stability, and reduces the number of components, thereby improving energy density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If each battery cell is sandwiched between two adjacent thermal management components that are separately disposed, then temperature control of each battery cell is improved, but the number of thermal management components increases, leading to increased device complexity and space occupation
Solution Approach 1:
Multiple battery cells share common thermal management components (first and second thermal management components) that are disposed at intervals along the first direction. This merging approach allows adjacent battery cells to utilize the same thermal management components for temperature control, reducing the total number of thermal management components while maintaining effective temperature management across all cells.
Solution Approach 2:
The thermal management components serve multiple functions: they provide temperature control for multiple battery cells simultaneously, offer structural support and limiting effects on the battery cells, and reduce the overall complexity of the battery assembly. This multi-functionality allows a single thermal management component to benefit multiple cells rather than requiring dedicated components for each cell.
2Temperature
If each battery cell is sandwiched between two adjacent thermal management components that are separately disposed, then temperature control of each battery cell is improved, but space occupation rate increases, reducing volumetric energy density
Solution Approach 1:
Adjacent battery cells share common thermal management components, which reduces the total number of components required in the battery assembly. This sharing arrangement decreases the space occupation rate of thermal management components, thereby increasing the volumetric energy density of the battery while maintaining effective temperature control across all cells.
Solution Approach 2:
The thermal management components provide multiple benefits including temperature control, structural support, and space optimization. By making these components serve multiple functions and multiple cells simultaneously, the design reduces the overall space required for thermal management, thus improving volumetric energy density.
3Quantity of substance
If multiple battery cells are arranged closely together, then energy density is improved, but the possibility of deformation caused by mutual extrusion increases
Solution Approach 1:
Thermal management components are disposed between adjacent battery cells, serving as intermediary structures that provide mechanical support and limiting effects. These components prevent mutual extrusion and deformation of battery cells while allowing them to be arranged closely together for high energy density. The thermal management components act as mediators that maintain structural stability during battery operation.
4Device complexity
If the number of thermal management components is reduced, then production cost and device complexity are lowered, but temperature control effectiveness may be compromised
Solution Approach 1:
The design merges the temperature control function across multiple battery cells by having them share common thermal management components. This approach maintains temperature control effectiveness because the thermal management components are strategically disposed to provide limiting and supporting effects on multiple cells simultaneously, ensuring proper temperature management without requiring dedicated components for each cell.
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 achieves more even heat exchange and temperature control, reduces component count, and lowers production costs, enhancing the volumetric energy density and structural integrity of the battery.
Implementation Method 1
a first heat exchange cavity configured to accommodate a heat exchange medium is disposed inside each of the thermal management components so that temperatures of the battery cells are adjusted by using the thermal management component
Data Source
AI summary
A battery includes: a plurality of thermal management components disposed at intervals along a first direction; at least one battery cell group, each battery cell group being disposed between two adjacent thermal management components; where each battery cell group includes a plurality of battery cells arranged along a second direction perpendicular to the first direction, and a first heat exchange cavity configured to accommodate the heat exchange medium is disposed inside each of the thermal management components so that temperatures of the battery cells are adjusted by using the thermal management component; and a bottom plate disposed on a side of the plurality of thermal management components along a third direction and connected with at least one thermal management component, where the first direction, the second direction, and the third direction are perpendicular to each other.