Laminate Battery Layer Alignment via Rotating Guide
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
During the lamination process of current collector, active material, and solid electrolyte layers in laminate-type batteries, materials often dislodge and adhere to positioning guides, leading to short-circuiting issues.
Innovation Solution
A method involving the sequential arrangement of layers along different contact surfaces of a positioning guide, with rotation of the guide between each layer placement to prevent adherence and misalignment, and optional cleaning of the guide surfaces to enhance the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a positioning guide is used to laminate layers, then manufacturing precision is improved, but materials may dislodge and adhere to the positioning guide causing short-circuiting
Solution Approach 1:
The positioning guide is divided into multiple contact surfaces (first contact surface, second contact surface, third contact surface) that are spatially separated. Each layer is arranged on a different contact surface, preventing material from one layer from adhering to and contaminating subsequent layers while still maintaining positioning accuracy.
Solution Approach 2:
The patent transitions from using a single contact surface for layer arrangement to using multiple contact surfaces arranged in three-dimensional space. This spatial separation in multiple dimensions prevents material transfer between layers while preserving the positioning function.
2Ease of manufacture
If layers are arranged on the same contact surface, then the process is simple, but material adherence to the positioning guide causes short-circuiting
Solution Approach 1:
The positioning guide is segmented into multiple contact surfaces, each serving as a separate arrangement zone for different layers. This segmentation maintains process simplicity while eliminating the short-circuiting problem caused by material adherence on a single surface.
3Reliability
If the positioning guide is rotated between layer arrangements, then material adherence is prevented, but the operation becomes more complex
Solution Approach 1:
The positioning guide is designed to be rotatable, transforming from a static to a dynamic structure. This rotational capability allows the same contact surface to be repositioned, preventing material adherence while maintaining operational simplicity through a single degree of freedom motion.
4Reliability
If multiple contact surfaces are used on the positioning guide, then short-circuiting is suppressed, but the positioning guide structure becomes more complex
Solution Approach 1:
The positioning guide serves multiple functions: it provides positioning accuracy through multiple contact surfaces, prevents material adherence through spatial separation, and maintains operational simplicity through rotational capability. This multi-functionality justifies the increased structural complexity.
Solution Approach 2:
The positioning guide structure is segmented into multiple contact surfaces arranged in three-dimensional space, with each surface serving as a dedicated arrangement zone for specific layers. This segmentation prevents material transfer while maintaining overall structural integration.
Data Source
AI summary
A method produces a laminate-type battery which can suppress short-circuiting even when a positioning guide is used. The method for producing a laminate-type battery having a first current collector layer, a first active material layer, a solid electrolyte layer or a separator layer, a second active material layer, and a second current collector layer laminated in this order, the method includes arranging a first layer along a first contact surface of a positioning guide, rotating the positioning guide, and thereafter arranging a second layer on the arranged first layer along a second contact surface of the positioning guide. The first layer and the second layer are different from each other and include an arbitrary layer selected from the first current collector layer, the first active material layer, the solid electrolyte layer or the separator layer, the second active material layer, and the second current collector layer.