Surrounding Particle Remover Around Winding Core for Electrode Cleanliness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional jelly roll type electrode assembly manufacturing processes are hindered by the inefficient removal of metallic and non-metallic foreign particles, which can lead to low voltage and short circuits due to their presence on the electrodes and separation film during the winding process.
Innovation Solution
A winding device with a foreign particle remover surrounding the winding core, featuring an inlet for receiving the electrode and separation film, and optionally incorporating a magnet to separate metallic particles, effectively preventing foreign particles from entering the winding core and discharging them externally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a foreign particle removing device is locally installed at the electrode input portions, then the device structure is simple, but foreign particles from various spots cannot be efficiently removed
Solution Approach 1:
The foreign particle remover is designed as a cylindrical structure that surrounds the winding core in a circumferential direction, transitioning from a local linear arrangement to a three-dimensional encompassing structure. This dimensional change allows the device to cover multiple input spots simultaneously, improving foreign particle removal efficiency without requiring multiple separate devices
Solution Approach 2:
The single cylindrical foreign particle remover structure serves multiple functions: it surrounds the winding core to prevent foreign particles from various input spots, collects particles through the inlet, and channels them to the discharge portion. This multi-functional design replaces what would otherwise require multiple localized removing devices
2Reliability
If the foreign particle remover is positioned close to the winding core, then foreign particle removal is effective, but the device structure becomes complex and difficult to assemble
Solution Approach 1:
The support rib acts as an intermediary element between the foreign particle remover and the winding core. It maintains a predetermined spacing relationship, allowing the foreign particle remover to be positioned effectively close to the winding core for efficient particle removal, while the modular support structure simplifies assembly and manufacturing processes
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
This solution ensures efficient prevention and removal of foreign particles, thereby enhancing the reliability and performance of the electrode assembly by minimizing the risk of short circuits and maintaining stable voltage.
Implementation Method 1
optionally incorporating a magnet to separate metallic particles
Data Source
AI summary
A winding device for manufacturing an electrode assembly is provided. The winding device includes a main body portion; a winding core for winding an electrode and a separation film; and a foreign particle remover connected to the main body portion and removing foreign particles, wherein the foreign particle remover is formed to surround the winding core while separated from the winding core.