Air Guide Roller Transport for Electrostatic Separator Breakage

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Solution Overview

Problem

Multi-coated separators experience frequent breakages due to severe electrostatic charges and friction with rollers in stack equipment, particularly when the binder ratio on the surface is high, leading to failures during transportation.

Innovation Solution

The use of an air guide roller system with controlled air spray to reduce friction and prevent breakages by spraying air onto the separator surface while it travels, adjusting air spray pressure and cycle based on electrostatic characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the binder ratio on the separator surface is increased to improve electrostatic characteristics, then the separator's ability to withstand electrostatic charges improves, but friction with rollers increases causing frequent breakages

Engineering Contradiction:
Improveelectrostatic characteristicVSAvoidseparator integrity
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

Air is introduced as an intermediary substance between the separator and the roller surface. The air layer acts as a mediator that reduces direct contact and friction between the separator and roller, preventing breakages while allowing the separator to maintain its high binder ratio for electrostatic stability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

A pneumatic system is employed where air is supplied through holes in the roller to create an air cushion or air film between the separator and the roller surface. This pneumatic mechanism reduces friction and prevents separator breakage during transportation

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Reliability

If the separator travels through stack equipment with high electrostatic characteristics, then the separator maintains its functional properties, but friction with rollers causes frequent breakages and transportation failures

Engineering Contradiction:
Improveelectrostatic characteristicVSAvoidtransportation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

Air serves as an intermediary that enables smooth transportation of the separator through the stack equipment. The air layer reduces friction and prevents stick-slip phenomena, allowing continuous and efficient transportation without breakages

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The physical state of the interface between separator and roller is changed from solid-to-solid contact to solid-to-gas contact. This parameter change in the contact medium fundamentally alters the friction characteristics and enables smooth transportation

Inventive Principle:
Principle #35Parameter changes

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

The air guide roller system effectively reduces friction and prevents separator breakages by maintaining contact with the roller, ensuring smooth transportation even under high electrostatic conditions.

Implementation Method 1

an air guide roller configured to receive a control command from the air guide roller controller and to spray air onto one surface of a separator when the separator travels

Methodology Applied
Scientific EffectAir spray: Fluid Spray

Implementation Method 2

a system for transporting a separator by using an air guide roller... reduces friction between the separator and a roller when the separator moves

Methodology Applied
Scientific EffectAir lubrication: Air Lubrication

Data Source

PatentEP4647382A1System and method for transporting separator by using air guide roller
Publication Date: 2025.11.12 SAMSUNG SDI CO LTD
  • EP4647382A1 patent drawingFigure 1
  • EP4647382A1 patent drawingFigure 2
  • EP4647382A1 patent drawingFigure 3

AI summary

A system for transporting a separator (12) by using an air guide roller (100) includes an air guide roller controller and an air guide roller configured to receive a control command from the air guide roller controller and to spray the air onto one surface of a separator (12) when the separator (12) travels.