Power Storage Cell Corner Bonding Against Module Displacement
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Solution Overview
Problem
Existing power storage cells face issues with relative displacement of cell modules within the cell case due to vibrations, which can lead to misalignment and potential failure.
Innovation Solution
The power storage cell design includes a cell module with a plurality of cell units, a cell case, and a bonding member. The cell case is formed in a rectangular parallelepiped shape, and the bonding member includes a corner bonding portion that bonds the three-dimensional corner of the cell case to the facing corner of the cell module, effectively securing the cell module within the case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cell module is simply placed in the cell case without bonding, then the assembly process is simple and fast, but the cell module can be relatively displaced with respect to the cell case due to vibration
Solution Approach 1:
The bonding member is divided into multiple functional portions: a corner bonding portion for bonding to the three-dimensional corner of the cell case, and multiple side bonding portions for bonding to the side surfaces of the cell module. This segmentation allows each portion to perform its specific bonding function efficiently, providing comprehensive displacement suppression while maintaining structural simplicity.
Solution Approach 2:
The bonding member extends in multiple spatial dimensions from the corner bonding portion to the side bonding portions, creating a three-dimensional bonding structure. This multi-dimensional configuration ensures that the cell module is firmly bonded to the cell case at multiple points in space, effectively suppressing relative displacement in all directions while keeping the bonding member design straightforward.
2Reliability
If bonding material is supplied to bond the cell module to the cell case, then relative displacement is suppressed, but the manufacturing process becomes more complex
Solution Approach 1:
The corner bonding portion is positioned and prepared in advance within the cell case before the cell module is fully assembled. This preliminary positioning ensures that when the bonding material is supplied, it can be efficiently applied to the predetermined location, simplifying the manufacturing process while ensuring reliable bonding.
Solution Approach 2:
The corner bonding portion acts as an intermediary structure that facilitates the supply and distribution of bonding material. By providing a predetermined bonding location and structure, it mediates between the bonding material supply process and the final bonding between the cell module and cell case, making the manufacturing process easier while ensuring strong bonding.
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 suppresses the relative displacement of the cell module with respect to the cell case, enhancing stability and reducing the risk of misalignment and failure due to vibrations.
Implementation Method 1
a bonding member provided within the cell case, wherein the cell case is formed in a rectangular parallelepiped shape, the cell module has a facing corner that faces a three-dimensional corner of the cell case, and the bonding member includes a corner bonding portion that bonds the three-dimensional corner of the cell case to the facing corner
Data Source
AI summary
A power storage cell includes: a cell module including a plurality of cell units; a cell case that accommodates the cell module; and a bonding member provided within the cell case. The cell case is formed in a rectangular parallelepiped shape. The cell module has a facing corner that faces a three-dimensional corner of the cell case. The bonding member includes a corner bonding portion that bonds the three-dimensional corner of the cell case to the facing corner.