Power Storage Module Terminal Holes for Uniform Resin Curing
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Solution Overview
Problem
Conventional power storage modules face challenges in ensuring complete curing of the resin sealing body, particularly when the current collector layer is tilted, leading to incomplete sealing between electrode plates.
Innovation Solution
Incorporating through holes or slits in the terminal members that protrude from the resin sealing body, allowing for effective irradiation with infrared or ultraviolet light, even when the terminal members are tilted, to facilitate complete curing of the resin sealing body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultraviolet light or infrared light is applied along a direction parallel to the protruding direction toward the resin placed on the side surface of the electrode assembly, then the resin can be cured to form a resin sealing body, but when the current collector layer is tilted, the portion of the resin overlapping the current collector layer cannot be sufficiently cured
Solution Approach 1:
The patent introduces through holes penetrating the terminal member in the stacking direction, adding a vertical dimension for light transmission. This allows light to irradiate the resin from both the side surface and through the terminal member, solving the shadowing problem caused by tilted current collector layers and ensuring complete curing of the resin sealing body.
2Ease of operation
If the current collector layer protrudes from the resin sealing body toward outside, then the terminal member can be provided, but when tilted it creates shadow regions that prevent sufficient curing of the resin
Solution Approach 1:
The terminal member is designed with through holes that allow light penetration. This porous structure enables the light to pass through the terminal member and cure the resin in regions that would otherwise be shadowed by the tilted terminal member, ensuring complete sealing reliability.
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 configuration reduces failures in sealing by ensuring uniform curing of the resin sealing body, even in areas overlapping tilted terminal members, thereby enhancing the reliability of the power storage module.
Implementation Method 1
applying infrared light or ultraviolet light toward the resin member along a direction parallel to a protruding direction in which the protruding portion protrudes when viewed in the stacking direction
Data Source
AI summary
A power storage module comprises an electrode assembly including a plurality of electrode plates stacked in a stacking direction, a resin sealing body for sealing an internal space formed between two adjacent electrode plates of the plurality of electrode plates, and a terminal member provided to the electrode assembly so as to protrude from the resin sealing body toward outside, wherein the terminal member is provided with one or more through holes penetrating along the stacking direction.