Secondary Battery Electrode Plate Conveying Tray
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Solution Overview
Problem
Existing methods for producing secondary battery electrode plate groups in a zigzag stack mode face challenges in achieving high positional accuracy and shortening tact time, as they struggle to efficiently insert and position positive and negative electrode plates within the separator furrows.
Innovation Solution
The proposed method employs a production apparatus with zigzag folding means, electrode plate insertion means, and supply means, utilizing guide bars and electrode plate conveying members to fold and insert the separator and electrode plates simultaneously, ensuring precise positioning and rapid insertion, thereby improving positional accuracy and reducing tact time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a zigzag stack type production device is used to improve positional accuracy and shorten tact time, then the positional accuracy of electrode plates and separator is improved, but the tact time cannot be shortened markedly due to the reciprocating motion of rollers
Solution Approach 1:
The separator is pre-folded into a zigzag shape with furrows formed beforehand using guide bars. Electrode plates are pre-positioned on conveying trays before insertion. This preliminary preparation eliminates the need for slow reciprocating motions during assembly, as components are already in their final positions and can be quickly transferred to the separator.
Solution Approach 2:
The patent replaces the traditional reciprocating roller mechanism with a conveyor tray system. Instead of using mechanical rollers that must slowly reciprocate to fold and position components, the invention uses conveyor trays that can rapidly move pre-positioned electrode plates into the pre-formed furrows of the zigzag separator, significantly reducing cycle time.
2Manufacturing precision
If electrode plates are inserted one by one into separator furrows, then positional accuracy is maintained, but the insertion process becomes time-consuming
Solution Approach 1:
Multiple electrode plates are combined on a single conveying tray in the correct sequence and orientation before insertion. The tray acts as a carrier that holds several plates together, allowing them to be inserted into multiple furrows simultaneously in one motion, rather than inserting each plate individually.
Solution Approach 2:
The conveying tray serves as an intermediary device between the electrode plate storage and the separator assembly. It pre-organizes multiple electrode plates in the correct positions and transfers them as a group to the separator, enabling rapid simultaneous insertion while maintaining precise positioning through the tray's structured design.
Data Source
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Figure 3(a)~3(b)
AI summary
A production apparatus is equipped with supply means which has a cassette member 50 for bearing a predetermined number of positive electrode plates or negative electrode plates, and which batchwise supplies a plurality of positive electrode plates 5 or negative electrode plates 6 placed on the cassette member 50 to respective electrode plate conveying trays 19 of an electrode plate conveying member 20.