Battery Cell Thermal Management Using Sidewall And Bottom Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery technologies face challenges in timely heat dissipation, leading to potential damage from excessive temperature, as the heat transfer area between battery cells and thermal management components is limited, primarily occurring through the bottom wall, which restricts effective cooling.
Innovation Solution
The integration of a thermal management component with an accommodating portion that attaches to both the bottom and side walls of the battery cell, enhancing the heat transfer area and allowing simultaneous heat dissipation through both surfaces, along with separate flow channels for different fluids with varying thermal conductivity coefficients to optimize cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat transfer occurs only through the bottom wall of the battery cell, then the thermal management component has a simple structure, but the heat transfer area is limited and heat dissipation is insufficient
Solution Approach 1:
The patent transitions from single-point bottom wall heat transfer to multi-dimensional heat transfer by having the battery cell extend into the accommodating portion. This allows heat transfer through both the bottom wall and the side wall simultaneously, effectively adding a dimensional aspect to the heat transfer pathway and significantly increasing the total heat transfer area.
2Temperature
If the battery cell extends into the accommodating portion to increase heat transfer area, then heat dissipation efficiency improves, but the manufacturing precision requirements increase
Solution Approach 1:
The battery cell itself serves as the attachment means by extending into the accommodating portion. The cell's own structural features (such as its housing or casing) are utilized to achieve the attachment, eliminating the need for separate attachment components and reducing manufacturing precision requirements for additional parts.
3Temperature
If separate flow channels with different fluids are used for different battery cells, then cooling efficiency is optimized, but the device complexity increases
Solution Approach 1:
Different battery cells are assigned different thermal management configurations based on their local heat generation characteristics. The thermal management component includes separate flow channels with different cooling fluids tailored to the specific thermal requirements of adjacent battery cells with different temperatures, optimizing cooling efficiency for each location.
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 solution enables timely and efficient heat dissipation, reducing temperature differences between battery cells and preventing damage from overheating, while improving the overall performance and longevity of the battery.
Implementation Method 1
the accommodating portion is attached to the bottom wall and side wall of the battery cell, to implement heat transfer between the battery cell and the thermal management component
Implementation Method 2
The first fluid circulates in the first flow channel, the second fluid circulates in the second flow channel
Data Source
AI summary
Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.