Battery Cell Thermal Management Integrated Into the Largest Wall
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Solution Overview
Problem
Current battery technologies face challenges in improving energy density while effectively managing thermal issues, particularly during fast charging, which can lead to safety hazards and reduced battery lifespan due to inadequate heat dissipation.
Innovation Solution
Incorporating a thermal management component connected to the largest surface area of each battery cell, with a size ratio of 0.1≤H1/H2≤2, to enhance space utilization and maintain optimal temperature, eliminating the need for additional structural elements within the battery and ensuring efficient heat exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If thermal management components are added to manage heat during fast charging, then thermal management performance is improved, but space utilization rate and energy density deteriorate
Solution Approach 1:
The patent combines the thermal management component with the battery cell structure by making the thermal management component form part of the battery cell housing or structure. This integration allows the thermal management function to be performed without occupying additional space outside the battery cell, thereby improving thermal management performance while maintaining space utilization rate and energy density.
2Reliability
If thermal management components are added to prevent overheating, then battery safety is improved, but device complexity increases
Solution Approach 1:
The thermal management component is integrated into the battery cell structure, combining structural support and thermal management functions into a single component. This reduces the number of separate parts and simplifies the overall structure while maintaining battery safety through effective thermal management.
Solution Approach 2:
The thermal management component serves multiple functions: it provides thermal management, structural support, and potentially housing for the battery cell. This multi-functionality reduces the need for separate dedicated components, thereby reducing device complexity while improving battery safety.
3Temperature
If additional structural elements are added for thermal management, then thermal management performance is improved, but energy density deteriorates
Solution Approach 1:
The thermal management component is designed to form part of the battery cell structure itself, eliminating the need for additional separate structural elements. This integration ensures that the thermal management function is achieved without reducing the active material volume, thereby maintaining energy density while improving thermal management performance.
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 improves energy density and meets thermal management requirements, preventing overheating and extending battery lifespan while maintaining efficient performance during fast charging.
Implementation Method 1
a thermal management component extending along a first direction and connected to a first wall of each battery cell among the plurality of battery cells
Implementation Method 2
the flow channel is configured to accommodate a fluid for adjusting a temperature of the battery cell
Data Source
AI summary
Provided are a battery, a power consumption device, a method and a device for producing a battery. The battery includes: a plurality of battery cells arranged along a first direction; a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, and the thermal management component being configured to adjust a temperature of the battery cell; and where in the second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall.