Electrode Stack Manufacturing Apparatus Edge Damage Prevention
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Solution Overview
Problem
Existing battery module manufacturing apparatuses damage the outer peripheral edges of sheet-shaped electrodes when stacking, as they come into contact with the gripping parts of the jigs used in the process.
Innovation Solution
An electrode stack manufacturing apparatus employing a plate conveyance device with conveyor plates and clamps that hold sheet-shaped electrodes during conveyance, preventing external forces from being applied to the edges and thus minimizing damage, and a stacking jig system with clamps that securely hold the electrodes without direct contact to the edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a jig with gripping parts is used to hold and stack sheet-shaped electrodes, then the electrodes can be securely held and stacked, but the outer peripheral edges of the sheet-shaped electrodes will contact the gripping parts and be damaged
Solution Approach 1:
The patent introduces conveyor plates as intermediary carriers between the gripping parts and the sheet-shaped electrodes. The clamps grip the conveyor plates instead of directly contacting the electrodes, while the electrodes rest on top of the conveyor plates. This intermediary structure transmits the holding force without direct contact between gripping parts and electrode edges, thereby preventing edge damage while maintaining holding stability.
2Ease of operation
If clamps directly grip the sheet-shaped electrodes, then the electrodes can be held securely during conveyance, but the outer peripheral edges will be damaged by the gripping parts
Solution Approach 1:
The conveyor plates serve as mediators that receive the gripping force from the clamps and transfer it to the electrodes through friction and normal force. The clamps grip the conveyor plates at locations that do not align with the electrode edges, and the conveyor plates distribute this force across the electrode surface without concentrating stress at the vulnerable peripheral edges.
3Productivity
If the stacking process uses traditional jig gripping parts, then the stacking operation can be performed, but the outer peripheral edges of multiple sheet-shaped electrodes will be damaged during the stacking process
Solution Approach 1:
The conveyor plates act as intermediaries during the stacking operation, allowing multiple sheet-shaped electrodes to be transferred and stacked without direct contact between gripping parts and electrode edges. The plates maintain secure holding of electrodes throughout the stacking process while protecting the peripheral edges from damage by distributing and redirecting the gripping forces.
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 solution effectively prevents damage to the outer peripheral edges of sheet-shaped electrodes during the stacking process, ensuring precise and damage-free assembly of electrode stacks, which is crucial for maintaining the integrity and performance of the batteries.
Implementation Method 1
clamps for clamping the sheet-shaped electrode carried on the conveyor plate against the conveyor plate to thereby hold the sheet-shaped electrode at a placement position on the conveyor plate during conveyance
Data Source
AI summary
An electrode stack manufacturing apparatus comprising a plate conveyance device (A) provided with a plurality of conveyor plates (20) made to move along a conveyance route while spaced apart from each other. The conveyor plates (20) are successively loaded with sheet-shaped electrodes (1). The conveyor plates (20) are provided with clamps (21, 22, 23, 24) clamping the sheet-shaped electrodes (1) carried on the conveyor plates (20) on the conveyor plates (20) and holding the sheet-shaped electrodes (1) at the placement positions on the conveyor plates (20) during conveyance.