Electrode Remnant Suction Guide to Prevent Splitting
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Solution Overview
Problem
Conventional remnant collection apparatuses for electricity storage devices face challenges in perfectly matching the transportation speed of electrode sheets and remnants, leading to potential severance of remnants due to tensile forces, which can disrupt production.
Innovation Solution
A remnant collection apparatus featuring an absorption device and a guide with a gap extending in the width direction of the remnant, allowing the remnant to be absorbed and transported without twisting, thereby minimizing tensile and torsional stresses that could split the remnant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nip rollers are used to transport the remnant, then the remnant can be collected, but the transportation speed cannot be perfectly matched with the electrode sheet, causing tensile force and severance
Solution Approach 1:
The patent replaces the mechanical nip roller transportation system with an absorption-based system. The remnant is absorbed at the separation point and transported through a guide gap using absorption forces rather than mechanical contact, eliminating the speed matching problem inherent in roller systems.
Solution Approach 2:
The absorption device uses pneumatic or hydraulic absorption forces to transport the remnant through the guide gap. This allows for smooth, contactless transportation that can be precisely controlled and matched to the electrode sheet speed without the mechanical constraints of roller systems.
2Ease of operation
If the remnant is transported without a guide, then it moves freely, but twisting and torsional stress cause splitting
Solution Approach 1:
The guide gap acts as an intermediary structure that provides lateral support to the remnant during transportation. It prevents excessive twisting and torsional stress while maintaining sufficient freedom of movement, serving as a mediator between complete freedom and complete constraint.
Solution Approach 2:
The guide gap structure provides a flexible constraint that allows the remnant to move freely in the transportation direction while preventing lateral twisting. The gap dimensions are optimized to provide just enough support to prevent splitting without restricting necessary movement.
3Stability of the object's composition
If the guide gap is too narrow, then twisting is suppressed, but the remnant cannot pass through smoothly
Solution Approach 1:
The guide gap dimensions are optimized to achieve the right balance. The gap width, height, and length are specifically designed to provide sufficient support for structural integrity while maintaining enough space for smooth passage. Parameters are tuned to match the remnant characteristics.
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 apparatus effectively suppresses the splitting of remnants, ensuring they are collected without interruption to the production process, even when the electrode sheet is split, and allows for smoother passage through the guide, preventing twisting and flapping.
Implementation Method 1
an absorption device absorbing a remnant generated when a band-like electrode material is cut along a longitudinal direction thereof to form an electrode sheet
Data Source
AI summary
A remnant collection apparatus for an electricity storage device includes an absorption device absorbing a remnant generated when a band-like electrode material is cut along a longitudinal direction thereof to form an electrode sheet; and a guide provided on a transportation route of the remnant transported by the absorption performed by the absorption device. The guide includes a gap extending in a width direction of the remnant, the remnant being insertable through the gap.