Adjustable Die Head Coating for Variable-Width Electrode Plates

Solution Overview

Problem

Existing battery production processes require multiple coating devices with different material outlet sizes to accommodate substrates of varying widths, leading to inefficiencies, high costs, and long manufacturing cycles.

Innovation Solution

A coating device with a first and second die head and an adjustable member in the flow channel that allows for adjusting the material width without replacing die heads, ensuring consistent and uniform material discharge for substrates of different sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple die heads with different material outlet sizes are used to accommodate substrates of varying widths, then the adaptability to different substrate sizes is improved, but the device complexity and manufacturing cost increase

Engineering Contradiction:

Improveadaptability to different substrate sizesVSAvoidnumber of die heads required

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The die head incorporates an adjustable member that can be positioned at different locations within the flow channel to dynamically change the material outlet size. This allows a single die head to adapt to different substrate widths by adjusting the outlet configuration, eliminating the need for multiple fixed-size die heads

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The die head is designed with a universal structure that can perform multiple functions by accommodating different adjusting member positions. The single die head can coat substrates of various widths by reconfiguring the material outlet, making it a multi-functional component that replaces multiple specialized die heads

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple die heads with different material outlet sizes are used to accommodate substrates of varying widths, then the adaptability to different substrate sizes is improved, but the manufacturing cost increases

Engineering Contradiction:

Improveadaptability to different substrate sizesVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The die head incorporates an adjustable member that can be positioned at different locations within the flow channel to dynamically change the material outlet size. This allows a single die head to adapt to different substrate widths by adjusting the outlet configuration, eliminating the need for multiple fixed-size die heads

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The die head is designed with a universal structure that can perform multiple functions by accommodating different adjusting member positions. The single die head can coat substrates of various widths by reconfiguring the material outlet, making it a multi-functional component that replaces multiple specialized die heads

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Manufacturing precision

If various models of coating devices with different material outlet sizes are used to coat substrates of different sizes, then the coating precision for different substrate sizes is improved, but the processing efficiency decreases

Engineering Contradiction:

Improvecoating precision for different substrate sizesVSAvoidprocessing efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The die head incorporates an adjustable member that can be positioned at different locations within the flow channel to dynamically change the material outlet size. This allows a single die head to adapt to different substrate widths by adjusting the outlet configuration, eliminating the need for multiple fixed-size die heads

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The die head is designed with a universal structure that can perform multiple functions by accommodating different adjusting member positions. The single die head can coat substrates of various widths by reconfiguring the material outlet, making it a multi-functional component that replaces multiple specialized die heads

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250229289A1Coating device for coating electrode plates and battery production system

Publication Date: 2025.07.17 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

AI summary

A coating device includes: a first die head and a second die head connected with each other, wherein a flow channel is formed between the first die head and the second die head, and the flow channel includes a material inlet and a material outlet; and an adjusting member, wherein at least part of the adjusting member is detachably arranged in the flow channel, the adjusting member is used to adjust a size of a material along a width direction when the material is discharged from the material outlet, and the width direction is perpendicular to a stacking direction of the first die head and the second die head, and perpendicular to a direction from the material inlet to the material outlet.