Battery Thermal Plate Structure for Space-Efficient Cell Cooling
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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 size of 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
1Strength
If traditional thermal management structures with beams are used, then structural strength is ensured, but space utilization rate decreases and energy density is reduced
Solution Approach 1:
The patent merges the thermal management function and structural support function into a single integrated component. The heat conducting plate serves dual purposes: it conducts heat away from battery cells while also providing structural support to replace traditional beams, thereby eliminating redundant structures and maximizing space utilization.
Solution Approach 2:
The heat conducting plate is designed as a multi-functional component that simultaneously performs thermal management (heat conduction) and structural support. This universal component replaces the need for separate beams, achieving both thermal control and mechanical strength while optimizing battery pack space.
2Strength
If heat conducting plate thickness is increased, then structural strength improves, but available expansion space for battery cells decreases
Solution Approach 1:
The patent optimizes the thickness parameter of the heat conducting plate to achieve the minimum required value that satisfies both strength requirements and space constraints. By carefully selecting the thickness parameter, the design balances structural integrity with the need to accommodate battery cell expansion, avoiding over-design that would waste valuable space.
3Temperature
If flow passage size is increased, then thermal management performance improves, but space for other components decreases
Solution Approach 1:
The patent optimizes the flow passage dimensions to achieve the minimum effective size required for adequate thermal management. By carefully controlling the passage size parameter, the design ensures sufficient heat dissipation capability while minimizing the space occupied by the thermal management system, leaving maximum room for battery cells and other components.
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 without the need for additional structural elements like beams.
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, the flow passage being configured to accommodate a fluid to adjust a temperature of the battery cell
Data Source
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AI summary
Provided are a battery (10), a power consumption device, a method (300) for producing a battery, and a device (400). The battery (10) includes: a plurality of battery cells (20) arranged along a first direction (x) and a thermal management component (101) extending along the first direction (x) and being connected to a first wall (2111) of each battery cell (20) among the plurality of battery cells (20), the thermal management component (101) including a pair of heat conducting plates (1011) that are oppositely arranged along a second direction (y) and a flow passage (1012) located between the pair of heat conducting plates (1011), the flow passage (1012) being configured to accommodate a fluid to adjust a temperature of the battery cell (20), and the second direction (y) being vertical to the first wall (2111), where in the second direction (y), a thickness D of the heat conducting plate (1011) and a size H of the flow passage (1012) satisfy: 0.01≤D/H≤25. Technical solutions of embodiments of the present application could enhance performance of a battery.