Battery Cell Adhesive Dispensing Guided by Surface Profile Sensing
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Solution Overview
Problem
Existing battery manufacturing processes risk damaging secondary batteries during the application of adhesive materials, leading to defects and reduced stability due to uneven application and misalignment of battery cells within the case.
Innovation Solution
A battery manufacturing apparatus and method that utilizes a sensor to sense the profile of battery cell protrusions, a discharger to apply adhesive material, and a controller to adjust the position and speed of the discharger based on the profile, ensuring uniform application and stable assembly of battery cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive material is applied to battery cells during manufacturing, then battery cells are securely positioned and heat is dissipated efficiently, but damage to battery cells may occur during the application process
Solution Approach 1:
The sensor measures the profile of the battery cell coating surface before adhesive application. This preliminary measurement allows the system to plan and execute adhesive discharge at safe positions that avoid damaging the battery cell, while still achieving secure positioning and heat dissipation.
Solution Approach 2:
The sensor acts as an intermediary between the adhesive discharge device and the battery cell. It provides information about the battery cell surface profile, enabling the controller to determine safe discharge positions that prevent direct contact between the adhesive discharge device and the battery cell, thus avoiding damage.
2Reliability
If adhesive material is applied uniformly to all battery cells, then stable assembly is achieved, but misalignment and uneven application may occur leading to defects
Solution Approach 1:
The controller adjusts the discharge position parameters of the adhesive material based on the measured profile of each battery cell. By changing the position parameters dynamically for each cell based on its specific profile, the system achieves uniform adhesive application across all cells while maintaining precise alignment, preventing both misalignment and uneven application defects.
Data Source
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AI summary
The present disclosure relates to a battery manufacturing apparatus for manufacturing a battery assembly which includes a plurality of battery cells, each including a tab part electrically connected to an outside and protruding outward, and an accommodating bottom surface forming a bottom surface of an accommodating space in which the plurality of battery cells are accommodated, including a sensor configured to sense a profile regarding a degree of protrusion of a coating surface of one side of the battery cell facing the accommodating bottom surface, a discharger configured to discharge an adhesive material to the coating surface of at least one battery cell of the plurality of battery cells, and a controller configured to control the discharger or the sensor to adjust at least one of a position and a moving speed of the discharger based on the profile, and a battery manufacturing method using the battery manufacturing apparatus.