Segmented Battery Heating Structure for Flexible Cell Assembly
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Solution Overview
Problem
Existing heating devices for electrochemical devices are difficult to bend and assemble, especially in low-temperature environments, which affects the charge-discharge performance of battery cells.
Innovation Solution
A heating device design featuring spaced heat emitting bodies with a clearance between them, connected by a conductive portion separate from the clearance, and an insulator to facilitate bending and deformation, improving assembly efficiency and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heating device is disposed between battery cells to regulate temperature, then the charge-discharge performance is improved, but the device is difficult to bend and assemble
Solution Approach 1:
The heating device is divided into multiple heat emitting bodies spaced apart along the first direction, with clearances between them. This segmentation allows the heating device to be bent and deformed more easily during assembly while still maintaining effective heating between battery cells
Solution Approach 2:
The heating device incorporates a flexible structure that can be bent and deformed to fit between battery cells. The spaced arrangement of heat emitting bodies with clearances between them enables the device to adapt to the spatial constraints and curvature of battery cell assemblies
2Ease of operation
If heat emitting bodies are spaced apart with clearances, then bending and deformation are facilitated, but the connection stability between heat emitting bodies may be compromised
Solution Approach 1:
Conductive portions are introduced as intermediary elements to connect adjacent heat emitting bodies. These conductive portions bridge the clearances between heat emitting bodies, providing both electrical connection for heating function and structural support for stability, while allowing the overall device to remain flexible and bendable
3Productivity
If conductive portion is separate from clearance, then assembly efficiency is improved, but the risk of foreign object damage and short circuit increases
Solution Approach 1:
Insulators are introduced as intermediary protective elements that overlay the surfaces of heat emitting bodies and conductive portions. These insulators prevent foreign objects from damaging the conductive components and eliminate the risk of short circuits, while the conductive portions remain separately positioned from clearances to maintain assembly efficiency
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 design enhances the assembly efficiency of electrochemical devices by allowing easier bending and deformation of the heating device, improving the charge-discharge performance of battery cells and reducing the risk of damage or short circuits.
Implementation Method 1
a plurality of heat emitting bodies are spaced apart along a first direction
Data Source
AI summary
A heating device includes at least two heat emitting bodies, at least one conductive portion, and an insulator. The plurality of heat emitting bodies are spaced apart along a first direction, with a clearance provided between two adjacent heat emitting bodies. The two adjacent heat emitting bodies are connected by the conductive portion. The conductive portion is separate from the clearance. The insulator overlays at least a part of a surface of the heat emitting body. In the heating device, a plurality of heat emitting bodies are spaced apart along the first direction, and a clearance is formed, thereby facilitating bending and deformation of the heating device in a clearance region between the adjacent heat emitting bodies. The conductive portion that connects the two adjacent heat emitting bodies is separate from the clearance.