Electrode Plate Marking Layout for Accurate Identification Formation
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Solution Overview
Problem
The existing methods for forming identification indication parts on electrode plates are prone to inaccuracies due to bending issues in the end portions of the core body, making precise formation challenging.
Innovation Solution
The electrode plate design includes a core body with a double-side coated part and an exposed part where the identification indication part is formed within a central region of the first principal surface, minimizing bending and allowing accurate formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the identification indication part is formed on the end portion of the exposed part, then it is easier to form the identification indication part, but the region is likely to bend during the forming process, making accurate formation difficult
Solution Approach 1:
The patent applies local quality by selecting a specific region on the electrode plate (within 90% of the area toward the center in the width direction of the core body) that has different mechanical properties (less prone to bending) compared to the end portions. This localized selection of formation position resolves the contradiction by finding a spot that balances ease of manufacture with manufacturing precision.
2Manufacturing precision
If the identification indication part is formed in the central region of the core body, then bending is minimized and formation accuracy is improved, but the region may be less accessible for the forming process
Solution Approach 1:
The patent changes the positional parameter of the identification indication part formation from the end portion to a specific central region (within 90% of the area toward the center in the width direction). This parameter change optimizes the formation accuracy by selecting a region with minimal bending, while the 90% threshold ensures the region remains accessible for the forming process.
Data Source
AI summary
A disclosed electrode plate includes: a band-shaped core body having a first principal surface and a second principal surface; and an active material layer formed on each of the first principal surface and the second principal surface. The core body includes a double-side coated part on which the active material layer is formed on each of the first principal surface and the second principal surface, and an exposed part provided continuously with the double-side coated part and on which the active material layer is not formed at least on the first principal surface. The first principal surface on the exposed part has an identification indication part formed thereon in a region within 90% of an area located toward a center in a width direction of the core body.