Battery Cell Thermal Plate Layout for Higher Energy Density
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Solution Overview
Problem
Current battery technologies face challenges in improving energy density while ensuring effective thermal management, which is crucial for overall performance.
Innovation Solution
Incorporating a thermal management component with heat conducting plates and a flow passage between them, connected to the wall with the largest surface area of each battery cell, where the thickness of the plate and the passage satisfy specific ratios to maximize space utilization and ensure thermal management, thereby enhancing energy density and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If thermal management components are added to ensure thermal management, then thermal management performance is improved, but space utilization rate decreases and energy density is reduced
Solution Approach 1:
The thermal management component is merged with the battery cell structure by directly connecting the heat conducting plates to the first wall of each battery cell. This integration eliminates the need for separate thermal management structures and maximizes space utilization while maintaining effective thermal management performance.
Solution Approach 2:
The thermal management component utilizes the second direction (vertical to the first wall) for heat conduction, creating a three-dimensional thermal management structure. By optimizing the thickness D of heat conducting plates and size H of flow passages in this dimension, the design achieves both thermal management effectiveness and space efficiency.
2Temperature
If the thickness of heat conducting plates is increased to improve thermal management, then thermal conduction performance is improved, but space utilization rate decreases
Solution Approach 1:
The design optimizes the thickness parameter D of heat conducting plates and the flow passage size parameter H to satisfy the ratio relationship 0.01≤D/H≤25. This parameter optimization ensures adequate thermal conduction performance while minimizing the space occupied by the thermal management component, thereby maximizing space utilization rate.
3Temperature
If thermal management components are added to ensure thermal management, then thermal management performance is improved, but structural complexity increases
Solution Approach 1:
The thermal management component is merged with the battery cell structure by directly connecting the heat conducting plates to the first wall of each battery cell. This integration eliminates the need for separate thermal management structures and maximizes space utilization while maintaining effective thermal management performance.
Solution Approach 2:
The first wall of each battery cell serves dual functions: as a structural component of the battery cell and as a mounting surface for the thermal management component. This multi-functionality reduces the need for additional structural elements and simplifies the overall battery structure.
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 allows for improved energy density and effective thermal management within the battery, optimizing space, strength, and thermal performance, leading to enhanced battery performance across various applications.
Implementation Method 1
a pair of heat conducting plates that are oppositely arranged along a second direction and a flow passage located between the pair of heat conducting plates
Implementation Method 2
the flow passage being configured to accommodate a fluid to adjust a temperature of the battery cell
Data Source
AI summary
Provided are a battery, a power consumption device, a method for producing a battery, and a device. The battery includes: a plurality of battery cells arranged along a first direction and 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 thermal management component including a pair of heat conducting plates that are oppositely arranged along a second direction and a flow passage located between the pair of heat conducting plates, the flow passage being configured to accommodate a fluid to adjust temperatures of the battery cell, and the second direction being vertical to the first wall, where in the second direction, a thickness D of the heat conducting plate and a size H of the flow passage satisfy: 0.01≤D/H≤25. Technical solutions of embodiments of the present application could enhance performance of batteries.