Electrode Plate Tab Cutting to Prevent Vibration Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The forming quality of electrode plates in lithium-ion batteries is compromised due to vibration-induced deformation and damage during the cutting process, leading to reduced product pass rates and increased production costs.
Innovation Solution
A method and device for forming electrode plates that involves two separate cutting steps: first, tab cutting to separate tabs from the edge portion with minimal vibration impact, and second, edge portion cutting to separate the edge portion from the body portion, using distinct cutting apparatuses and negative-pressure dust removal to enhance efficiency and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If tab cutting and edge portion cutting are performed in one step, then the cutting process is simpler and faster, but the edge portion vibration causes tab deformation and damage reducing product pass rate
Solution Approach 1:
The cutting process is divided into two separate steps: tab cutting (separating tabs from edge portion) and edge portion cutting (separating edge portion from body portion). This segmentation allows each cutting operation to be optimized independently, preventing vibration from the edge portion cutting from affecting tab quality.
Solution Approach 2:
Tab cutting is performed first as a preliminary action before edge portion cutting. By separating the tabs from the edge portion beforehand, the tabs are protected from vibration and damage that would occur during the subsequent edge portion cutting operation.
2Manufacturing precision
If edge portion is separated from tabs first, then tab deformation is reduced, but the cutting process becomes more complex and time-consuming
Solution Approach 1:
The complex cutting task is segmented into two simple, sequential operations: first cutting the tabs from the edge portion, then cutting the edge portion from the body portion. This segmentation maintains simplicity while improving quality.
Solution Approach 2:
The two cutting operations are performed in continuous sequence without interruption or repositioning. The first cutting apparatus completes tab cutting, then the second cutting apparatus immediately performs edge portion cutting, maintaining continuous productive action throughout the process.
3Device complexity
If traditional cutting methods are used, then equipment simplicity is maintained, but dust and debris affect forming quality and require additional cleaning
Solution Approach 1:
Negative-pressure dust removal systems are introduced as intermediary components between the cutting operations and the environment. These systems capture and remove dust and debris generated during cutting, preventing contamination of the electrode plate while adding minimal complexity to the overall system.
Data Source
AI summary
Disclosed is method and device for forming an electrode plate. The method includes: performing tab cutting on a substrate so that the substrate forms a body portion, an edge portion connecting to the body portion, and a plurality of tabs that connect to the body portion but are separated from the edge portion; and performing edge portion cutting on the substrate to separate the edge portion from the body portion. The electrode plate is formed in two steps. First, the tab and the edge portion are separated, so that in the process of cutting, impact of vibration of the edge portion on the tab is small, greatly reducing the risk of deformation of the tab caused by vibration of the edge portion and damage to the tab caused by being pulled by the edge portion. Second, edge portion cutting separates the edge portion from the body portion.