Battery Tab Thermal Path Layout for Cover Plate Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current battery designs face challenges in thermal dissipation due to limited thermal conductive paths between the electrode assembly and external cooling components, leading to heat concentration and safety issues.
Innovation Solution
The battery design incorporates at least two thermal conductive structures between the cover plate and the electrode assembly, including a first thermal conductive structure and a second thermal conductive structure arranged radially, to enhance heat transfer and improve thermal dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high energy density and high output power are pursued in battery design, then energy storage capacity and power output are improved, but heat generation increases and thermal dissipation becomes insufficient
Solution Approach 1:
The patent divides the single thermal conductive path into multiple segmented paths by setting at least two thermal conductive structures (first thermal conductive structure and second thermal conductive structure) between the electrode assembly and cover plate. This segmentation allows heat to be dissipated through multiple parallel channels, reducing heat concentration while maintaining high power output capability.
2Device complexity
If a single thermal conductive path is used between electrode assembly and cover plate, then device structure is simple, but thermal dissipation efficiency is insufficient
Solution Approach 1:
The patent transitions from a single-point thermal conductive path to a multi-dimensional thermal network by arranging thermal conductive structures at different positions (edge region and central region) and orientations. The first thermal conductive structure connects at the edge region while the second connects at the central region, creating spatially distributed thermal pathways that significantly improve thermal dissipation 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
This design optimizes temperature field distribution and enhances thermal dissipation efficiency, making it suitable for system-level thermal management and expanding the battery's application range.
Implementation Method 1
The first thermal conductive structure and the second thermal conductive structure transfer heat generated on the tab to the cover plate
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Disclosed are a battery (100) and an electrical device. The battery (100) includes a case assembly (1) including a shell (11) provided with an opening disposed at an end thereof in an axial direction and a cover plate (12) sealing the opening; and an electrode assembly (2) disposed within an inner cavity of the shell (11). A tab (21) disposed at an end of the electrode assembly (2) facing the cover plate (12) is electrically connected to the cover plate (12). A first thermal conductive structure (4) and a second thermal conductive structure (5) included between the tab (21) and the cover plate (12) are arranged at intervals along the cover plate (12) in a radial direction, and transfer heat generated on the electrode assembly (2) to the cover plate (12).