Battery Winding Core Suction Control for Separator Release
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Solution Overview
Problem
The existing methods for producing a wound electrode assembly in batteries, which involves winding negative and positive electrode plates with separators, are inefficient and require improvement.
Innovation Solution
A method is disclosed where a first separator is suction-attached to a winding core with independently controllable groups of holes for suction and gas discharge, allowing for improved production efficiency by controlling the attachment and detachment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If suction is applied through a single group of holes in the winding core, then the structure is simple, but the control over suction and detachment processes is insufficient
Solution Approach 1:
The winding core is divided into two distinct groups of holes: a first group of holes for suction and a second group of holes for gas discharge. This segmentation allows independent control of suction and detachment processes, resolving the contradiction by enabling precise operational control while maintaining a relatively simple overall structure.
Solution Approach 2:
The winding core incorporates multiple groups of holes that serve different functions (suction and gas discharge) within a single component. This multi-functionality allows the winding core to perform both attachment and detachment operations without requiring separate components, thus improving operational control while avoiding excessive structural complexity.
2Productivity
If traditional winding methods are used, then the process is simple, but production efficiency is low
Solution Approach 1:
The winding process employs dynamic control of suction and gas discharge through independently controllable hole groups. By dynamically switching between suction mode (for secure attachment during winding) and gas discharge mode (for easy detachment after winding), the system achieves high production efficiency while managing process complexity through systematic control.
Solution Approach 2:
The winding process maintains continuous useful action by seamlessly transitioning between suction and gas discharge phases. The first group of holes enables continuous suction during winding, while the second group facilitates continuous gas discharge during detachment, ensuring uninterrupted production flow and improved productivity.
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 method enhances the production efficiency of wound electrode assemblies by enabling precise control over the suction and detachment processes, leading to improved manufacturing efficiency.
Implementation Method 1
suction is applied to the first separator through at least one of the first group of holes and the second group of holes, to suction-attach the first separator to the winding core
Data Source
AI summary
A method of manufacturing a battery is disclosed. The method includes the steps of (A) suction-attaching the first separator to a winding core, (B) winding the first separator on the winding core, and (C) removing the wound electrode assembly from the winding core. The winding core includes a first group of holes and a second group of holes each formed in its outer circumferential surface. In step (A), suction is applied to the first separator through at least one of the first group of holes and the second group of holes, to suction-attach the first separator to the winding core. The first group of holes and the second group of holes are configured to be controllable so as to cause suction and gas discharge independently from each other.