Electrode Pressure-Bonding Device for Separator Alignment

Solution Overview

Problem

The existing methods for manufacturing electrode assemblies face the challenge of positional misalignment between electrodes and separator materials due to the rolling-out process, which affects the accuracy and quality of the final assembly.

Innovation Solution

An electrode pressure-bonding device is designed with a feeding mechanism, a support stage, and a pressure-bonding device that includes a moving device to align and securely bond the electrodes with the separator material, utilizing a suction mechanism, heating, and a clamp device to prevent misalignment and ensure precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the separator material is rolled out and laminated with electrodes, then the electrode assembly can be manufactured, but positional misalignment occurs between the electrode and separator material

Engineering Contradiction:

Improveease of manufactureVSAvoidpositioning accuracy

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The separator material is clamped to the support stage before the electrode is placed on it. This preliminary clamping action prevents the separator material from moving during subsequent operations, thereby preventing positional misalignment between the electrode and separator material while still allowing the rolling-out and lamination process to proceed

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The support stage acts as an intermediary device between the separator material and the electrode. By clamping the separator material to the support stage, the system creates a stable reference frame that prevents relative movement, thus eliminating positional misalignment without interfering with the manufacturing process

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the electrode is placed on the moving separator material, then the assembly process can proceed, but the electrode moves together with the separator material causing misalignment

Engineering Contradiction:

Improveassembly speedVSAvoidpositioning accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The separator material is clamped to the support stage before the electrode is placed on it. This preliminary clamping action prevents the separator material from moving during subsequent operations, thereby preventing positional misalignment between the electrode and separator material while still allowing the rolling-out and lamination process to proceed

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The support stage acts as an intermediary device between the separator material and the electrode. By clamping the separator material to the support stage, the system creates a stable reference frame that prevents relative movement, thus eliminating positional misalignment without interfering with the manufacturing process

Inventive Principle:

Principle #24Intermediary (Mediator)

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 device effectively reduces positional misalignment during the assembly process, allowing for accurate and reliable bonding of electrodes to the separator material, enhancing the quality and consistency of the electrode assemblies.

Implementation Method 1

The support stage may include a suction mechanism for sucking up the electrode with the separator material interposed therebetween so as to assist in placing the electrode onto the separator material.

Methodology Applied

Scientific EffectSuction: Suction

Implementation Method 2

a pressure-bonding device that holds the separator material and the electrode together and pressure-bonds at least part of the separator material to the electrode

Methodology Applied

Scientific EffectPressure bonding: Compression

Implementation Method 3

The support stage may include a heating mechanism that heats the separator material and the electrode.

Methodology Applied

Scientific EffectHeating: Heating

Data Source

PatentUS11476491B2Electrode pressure-bonding device

Publication Date: 2022.10.18 MURATA MFG CO LTD

AI summary

An electrode pressure-bonding device that includes a feeding device that feeds a separator material in a strip shape in a feeding direction; a support stage under the separator material and configured to support an electrode on the separator material with the separator material interposed between the electrode and the support stage; and a pressure-bonding device that holds the separator material and the electrode together and pressure-bonds at least part of the separator material to the electrode.