Laminated Electrode Body Alignment Using Adsorption and Inspection
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Solution Overview
Problem
Conventional methods struggle to achieve high accuracy in the lamination of positive and negative electrode sheets with a separator sheet in laminated electrode bodies, leading to positioning inaccuracies.
Innovation Solution
A manufacturing apparatus and method that utilize a laminating table, transporting means with an adsorbing portion, and a control system to accurately position and inspect the sheets before lamination, ensuring a normal positional relationship is maintained between the sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If sheets are individually adsorbed by an adsorbing portion and transported to a laminating table, then the lamination process can be performed, but the position of each sheet cannot be controlled with high accuracy in the laminate
Solution Approach 1:
The patent divides the lamination process into distinct phases: a first lamination phase where a first sheet is adsorbed and positioned on the laminating table, and a second lamination phase where a second sheet is adsorbed and positioned relative to the first sheet. This segmentation allows for controlled, sequential positioning that improves accuracy while managing system complexity through phased operations.
Solution Approach 2:
The patent implements preliminary positioning actions by first adsorbing and positioning the first sheet on the laminating table before attempting to position the second sheet. The adsorbing portion is used to preliminarily secure sheets at prescribed positions, ensuring that subsequent lamination operations start from a known, accurate reference point, thereby improving overall position accuracy.
2Manufacturing precision
If sheets are adsorbed at prescribed positions and laminated sequentially, then lamination can be performed, but it is difficult to ensure normal positional relationships between sheets
Solution Approach 1:
The patent incorporates an inspection mechanism that detects the position of sheets after adsorption and before final lamination. This feedback allows the system to verify whether sheets are at their prescribed positions and to make necessary adjustments, ensuring normal positional relationships between sheets while minimizing rework through early detection of positioning errors.
Solution Approach 2:
The patent replaces purely mechanical positioning with a combination of mechanical adsorption and optical/electronic inspection systems. The inspecting portion uses non-contact methods to detect sheet positions, substituting mechanical measurement methods with more precise sensing technologies that can accurately determine positional relationships without physical contact or disturbance to the sheets.
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
The method and apparatus enable the production of laminated electrode bodies with high positional accuracy by alternately repeating selective sheet arrangement processes, ensuring precise lamination of electrode and separator sheets.
Implementation Method 1
a drivable adsorbing portion having an adsorption plate
Data Source
AI summary
A manufacturing technique of a laminated electrode body which enables a highly accurate laminated electrode body to be manufactured is provided. In a preferable aspect of the manufacturing apparatus of a laminated electrode body disclosed herein comprises a laminating table, transporting means, an inspecting portion, and a control portion. The control portion is configured to execute process disclosed herein.