Electrode Plate Unwinding Alignment With Upstream Deviation Correction

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Solution Overview

Problem

During the unwinding process of electrode plates in battery manufacturing, deviations often occur, leading to wrinkling and damage if not corrected timely, affecting the quality of the battery product.

Innovation Solution

A method and apparatus that utilize sensors to collect deviation data, process it, and adjust the unwinding apparatus to maintain the electrode plate within a target range, preventing damage through precise displacement control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the electrode plate is unwound without deviation correction, then the unwinding process is simple and fast, but the electrode plate easily deviates and becomes wrinkled or damaged

Engineering Contradiction:

Improveelectrode plate qualityVSAvoidunwinding system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary deviation detection using sensors before the electrode plate reaches the critical unwinding zone. By detecting deviation in advance and pre-adjusting the unwinding position, the system prevents wrinkling and damage before they occur, rather than reacting after the problem arises

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a closed-loop feedback mechanism where sensors continuously monitor electrode plate position and deviation, the controller processes this information in real-time, and the unwinding apparatus automatically adjusts its position based on the detected deviation. This real-time feedback loop maintains electrode plate alignment without requiring complex manual intervention

Inventive Principle:

Principle #23Feedback

2Manufacturing precision

If deviation correction is implemented, then electrode plate alignment is improved, but the correction response time must be sufficient to prevent damage

Engineering Contradiction:

Improveelectrode plate alignmentVSAvoidcorrection response time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The sensor system is positioned upstream to detect deviations before they become critical. By identifying alignment issues in advance during the unwinding process, the system has sufficient time to calculate and execute correction actions before the electrode plate reaches vulnerable zones where wrinkling or damage would occur

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system replaces slow mechanical adjustment mechanisms with automated electronic control. Sensors detect deviation electronically, the controller calculates correction parameters through automated algorithms, and actuators execute position adjustments rapidly. This substitution of electronic control for manual or purely mechanical systems significantly reduces the response time required for deviation correction

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20240030482A1Electrode plate deviation correction method, apparatus, device, storage medium and product

Publication Date: 2024.01.25 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

AI summary

An electrode plate deviation correction method includes collecting, by sensors, deviation data of an edge of an electrode plate relative to a preset boundary, determining a deviation correction displacement of the electrode plate according to the deviation data, controlling, according to the deviation correction displacement, an unwinding apparatus for the electrode plate to adjust a position of the electrode plate so that the deviation data of the electrode plate relative to the preset boundary is within a target range.