Expandable Placing Portion for Battery Pressing Precision
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Solution Overview
Problem
Existing battery manufacturing processes face challenges in accurately positioning batteries during the pressing and heating stages, leading to variations in thickness and internal resistance, and are not adaptable to producing batteries of different sizes efficiently.
Innovation Solution
A battery manufacturing apparatus with expandable and contractible placing portions, featuring a honeycomb structure that allows for precise positioning and adjustment, and a driving unit that moves pressing plates to sandwich and heat the batteries, ensuring consistent pressure and easy handling of various battery sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed placing portion is used during pressing, then the structure is simple, but the battery positioning precision deteriorates leading to thickness variations
Solution Approach 1:
The placing portion is designed to expand and contract in synchronization with the pressing portions. During pressing, the placing portion contracts to provide a confined space that precisely positions the battery, preventing displacement and ensuring uniform thickness. During non-pressing phases, it expands to facilitate battery loading and removal. This dynamic adaptation resolves the contradiction by making the structure complex only when needed for precision.
Solution Approach 2:
The placing portion changes its physical state (expanded/contracted) based on the pressing cycle phase. This parameter change allows the same structure to serve dual functions: facilitating easy battery placement when expanded and providing precise positioning when contracted, thereby resolving the contradiction between structural simplicity and positioning precision.
2Adaptability or versatility
If the placing portion is rigid, then the positioning is stable, but the adaptability to different battery sizes deteriorates
Solution Approach 1:
The placing portion transitions from a static rigid structure to a dynamic structure that can expand and contract. This allows the same placing portion to adapt to different battery sizes by adjusting its volume, while maintaining positioning stability through controlled contraction during pressing operations.
Solution Approach 2:
The expandable placing portion serves multiple functions: it accommodates batteries of different sizes through expansion, provides precise positioning through contraction, and facilitates easy battery loading/unloading. This multi-functionality resolves the contradiction by making the structure adaptable to various battery sizes while maintaining stable positioning during the critical pressing phase.
3Ease of operation
If the placing portion does not expand/contract, then the mechanism is simple, but the ease of operation deteriorates due to positioning difficulties
Solution Approach 1:
The placing portion's expansion/contraction mechanism is merged with the pressing mechanism, both being driven by the same driving unit. This integration means that the complexity of the expansion/contraction mechanism is shared with the pressing operation, reducing the overall operational complexity. The battery positioning becomes easier because the placing portion automatically adjusts to the pressing cycle without requiring separate control mechanisms.
Data Source
AI summary
A battery manufacturing apparatus includes two or more pressing portions that sandwich a flat battery therebetween and press the battery, a placing portion that is provided between the pressing portions and on which the battery is placed so that a main surface of the battery faces the pressing portion, and a driving unit that moves the pressing portions in directions toward or away from each other. The placing portion is configured to be capable of expanding and contracting as the pressing portion moves.