Battery Cell Self-Heating for Fast Polymer Curing in Battery Packs
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Solution Overview
Problem
Existing methods for curing polymer compounds in battery packs are either time-consuming at room temperature or require high energy to accelerate the curing process with heating, leading to inefficiencies and increased production costs.
Innovation Solution
Generating heat through the charging or discharging of battery cells, which efficiently transfers heat to the polymer compounds due to low thermal resistance, allowing for rapid and uniform curing with minimal energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the polymer compound is cured at room temperature, then energy consumption is low, but curing time becomes comparatively long
Solution Approach 1:
The battery cell serves itself by using its own internal resistance to generate heat during charging/discharging cycles, which directly cures the polymer compound adjacent to it. This self-generated heat eliminates the need for external heating systems, achieving both low energy consumption and reduced curing time.
Solution Approach 2:
The patent changes the temperature parameter by utilizing the thermal effect of electrical current passing through the battery cell's internal resistance. By controlling charging and discharging cycles, the temperature is dynamically adjusted to optimal curing conditions without requiring external heating equipment.
2Loss of time
If the battery pack is heated in a heated chamber to speed up curing, then curing time is reduced, but energy costs increase
Solution Approach 1:
Instead of using external heating chambers that consume significant energy, the battery cell utilizes its own internal resistance to generate the necessary heat for curing. This self-service approach dramatically reduces energy costs while maintaining reduced curing time.
Solution Approach 2:
The patent converts the harmful thermal energy that would normally be wasted as heat during battery operation into a beneficial resource for curing the polymer compound. The internal resistance, which typically generates unwanted heat, is instead harnessed to provide controlled heating for the curing process.
3Speed
If heat is generated externally to cure the polymer compound, then curing speed increases, but thermal resistance reduces heat transfer efficiency
Solution Approach 1:
The heating function is localized directly at the battery cell where the polymer compound is positioned. By generating heat locally within the battery cell itself rather than externally, the patent eliminates thermal resistance barriers and achieves efficient heat transfer directly to the adjacent polymer compound.
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 method enables quick and efficient curing of polymer compounds, reducing production time and energy costs while ensuring high-quality mechanical stability in battery packs.
Implementation Method 1
Every battery cell has an internal electrical resistance. When charging or discharging the battery cell, this internal electrical resistance has the effect that heat is generated.
Implementation Method 2
the heat may be transferred into the polymer compound with high efficiency and with little time lag. This is due to the fact that a thermal resistance between the battery cell and the polymer compound arranged adjacent to the battery cell is comparatively low
Data Source
Figure 1~2
AI summary
The disclosure relates to a method for curing a polymer compound (22) arranged adjacent to a battery cell (14). The method comprises generating heat by charging or discharging the battery cell (14). Moreover, the disclosure is directed to a method for producing a battery pack (10), wherein the battery pack (10) comprises at least one battery cell (14). The method comprises curing the polymer compound (22) using the method for curing a polymer compound (22). Additionally, the disclosure is directed to a use of a battery cell (14) for curing a polymer compound (22) arranged adjacent to the battery cell (14).