Battery Conductive Column Sizing for Thermal Safety
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Solution Overview
Problem
Existing battery designs face issues with thermal safety due to either excessive heat generation from small current passage areas or resource wastage from large conductive column sizes, leading to inefficient battery performance.
Innovation Solution
The battery design incorporates a conductive column with a cross-sectional area that meets specific ratios with battery capacity, ensuring sufficient current passage capacity without excessive heat generation, thereby enhancing thermal safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cross-sectional area of the conductive column is increased, then the current passage capacity is improved, but the resource utilization deteriorates
Solution Approach 1:
The patent applies parameter changes by establishing a quantitative relationship between the cross-sectional area of the conductive column and the battery capacity through the formula C/s≤8. This parameter optimization ensures the conductive column has sufficient current passage capacity while avoiding excessive material usage, resolving the contradiction between reliability and resource utilization.
2Loss of substance
If the cross-sectional area of the conductive column is decreased, then the resource utilization is improved, but the heat generation increases causing thermal safety problems
Solution Approach 1:
The patent uses parameter changes to determine the optimal cross-sectional area of the conductive column based on battery capacity, expressed by the formula C/s≤8. This ensures the conductive column is large enough to prevent excessive heat generation while being small enough to avoid resource waste, thus resolving the contradiction between resource efficiency and thermal safety.
3Reliability
If the cross-sectional area of the conductive column is increased, then the current passage capacity is improved, but the device complexity increases
Solution Approach 1:
The patent resolves the contradiction by changing the design approach from qualitative judgment to quantitative parameter control. The formula C/s≤8 provides a clear design criterion that simplifies the decision-making process for determining conductive column dimensions, avoiding unnecessary structural complexity while ensuring sufficient current passage capacity.
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 effectively manages heat generation and ensures thermal safety by optimizing the cross-sectional area of the conductive column relative to battery capacity, preventing temperature exceedance and improving overall battery performance.
Implementation Method 1
a cross-sectional area s in mm2 of the conductive column and a battery capacity C in Ah of the battery meet: C/s≤8... so that the temperature during use of the battery will not exceed the temperature range for use of the battery due to large heat generation caused by a small current passage area
Data Source
AI summary
A battery includes a battery shell, an electrode core, and a conductive column. The electrode core is disposed within the battery shell, and the conductive column extends through the battery shell and is connected to the electrode core, where a cross-sectional area s in mm2 of the conductive column and a battery capacity C in Ah of the battery meet: C/s≤8.