Battery Guide Portions for Electrode Alignment
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Solution Overview
Problem
Existing battery technologies face challenges in maintaining the alignment and stability of electrode plates and separators during stacking, leading to potential electrical shorts and increased internal resistance due to dislocation or shifting caused by external factors like oscillation or environmental changes.
Innovation Solution
The integration of guide portions within the battery case, which are formed in pairs and extend perpendicularly from the base, align and stabilize the positive and negative electrode plates and separators during stacking, preventing dislocation and ensuring precise alignment, thereby enhancing electrical output and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If guide portions are integrated into the battery case to align electrode plates and separators, then manufacturing precision and alignment stability are improved, but device complexity increases due to the integrated structure
Solution Approach 1:
The guide portions are integrally formed with the battery case as a single molded structure, merging the case and alignment features into one component. This eliminates the need for separate guide elements, reduces assembly steps, and maintains manufacturing precision while actually simplifying the overall device structure despite the added functional complexity.
2Reliability
If guide portions are added to the battery case, then reliability is improved by preventing electrical shorts, but ease of manufacture deteriorates due to additional molding requirements
Solution Approach 1:
The guide portions are incorporated into the battery case as an integral molded structure, combining the case and alignment features into a single manufacturing process. This eliminates the need for separate components and assembly steps, maintaining reliability benefits while actually improving ease of manufacture through reduced part count and assembly operations.
Solution Approach 2:
The guide portions are pre-formed as integral features of the battery case during the molding process, before assembly of the electrode stack. This preliminary formation of alignment features ensures proper positioning is built into the case structure itself, preventing electrical shorts through design rather than requiring additional manufacturing steps or quality control measures.
3Manufacturing precision
If guide portions extend perpendicularly from the base to align electrodes, then manufacturing precision is improved, but device complexity increases due to three-dimensional structural features
Solution Approach 1:
The three-dimensional guide portions are integrally molded with the battery case, merging the case structure and alignment features into a single component. This eliminates the need for separate alignment elements and complex assembly procedures, maintaining high stacking precision while simplifying the overall device structure through integrated manufacturing.
Data Source
AI summary
A battery includes an electrode assembly fabricated with a positive electrode, a separator, and a negative electrode, each perforated by corresponding through voids along both of their respective opposite edge margins, stacked one upon another with the corresponding holes aligned. An arrangement of guide portions integrally formed simultaneously together with a surrounding case, accommodates stacking of the electrode assembly during fabrication of the battery. Aspects of the guide portions extend along a direction of stacking of the positive electrodes, negative electrodes and separators. The case and the arrangement of guide portions improve the internal alignment and facilitates the stack ability of electrode assemblies formed by the stacking of positive electrodes, negative electrodes and separators, and enhances the operational stability of the battery and the output performance of the battery, without detracting from the overall compactness of the battery.