Cell Roll Spiral Winding for Customizable Battery Production
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Sheet-type cells lack standard specifications, leading to reduced user convenience and productivity due to the need for various types of cells to meet different user needs, and limiting characteristics can improve productivity but constrain equipment usage.
Innovation Solution
A cell roll with a sheet-type continuous body including a resin film and multiple power generation elements, each comprising a positive electrode, negative electrode, separator, and electrolyte, sealed within the outer case and wound in a spiral fashion, allowing for flexible cell configuration and production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If various types of sheet-type cells are produced to meet different user needs, then user convenience is improved, but productivity is reduced
Solution Approach 1:
The invention divides the continuous sheet-type outer case into multiple segments, each containing a power generation element. This segmentation allows individual cells to be customized by selecting different numbers and arrangements of power generation elements, thereby providing variety to meet different user needs while maintaining continuous production for high productivity.
Solution Approach 2:
The invention creates a universal sheet-type outer case structure that can accommodate different configurations of power generation elements. This multi-functional design allows the same basic structure to serve multiple purposes and produce various cell types, balancing adaptability with production efficiency.
2Productivity
If sheet-type cells are limited to particular characteristics, then productivity is improved, but user convenience is reduced
Solution Approach 1:
The invention introduces dynamic configurability to the sheet-type cell structure, allowing the number, arrangement, and specifications of power generation elements to be adjusted according to user needs. This dynamic design enables customization without sacrificing production efficiency, as the continuous production process can accommodate different configurations.
3Adaptability or versatility
If additional packaging is used for customized cells, then user flexibility is improved, but device complexity and environmental impact worsen
Solution Approach 1:
The sheet-type outer case serves multiple functions simultaneously: it acts as the structural housing, the packaging container, and the mounting structure for power generation elements. This multi-functionality eliminates the need for additional packaging, reducing device complexity and environmental impact while maintaining user flexibility through configurable cell designs.
Solution Approach 2:
The invention merges the outer case and packaging into a single integrated structure. The sheet-type outer case body simultaneously provides mechanical protection, structural support, and containment for the power generation elements, eliminating redundant packaging components and simplifying the overall device structure.
Data Source
AI summary
A cell roll disclosed in the present application includes a sheet-type continuous body including a long sheet-type outer case body and a plurality of power generation elements. The sheet-type outer case body includes a resin film. The power generation elements are individually sealed in the sheet-type outer case body. The power generation elements are located side by side in the longitudinal direction of the sheet-type outer case body. Each of the power generation elements includes a positive electrode, a negative electrode, a separator, and an electrolyte. The sheet-type outer case body and the power generation elements form individual cells. The sheet-type continuous body is wound in a spiral fashion.