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(LOTS)Battery electrode tab inspection

(LOTS)Battery electrode tab inspection light leds

1.Introduction
With the popularization of machine vision, machine vision has been widely used in the new energy industry, Lithium battery electrode tab detection is also widely needed. Electrode tab is a thin metal sheet, easy to wrinkle, tilt... so we should pay more attention to the lighting model selection. Here we introduce the lighting model selection for battery electrode tab inspection through some cases.

2.Applications:

Case 1
(1)Work piece picture
300x200
300x200
(2)Inspection requirement:Fov 30*40 mm, to inspect the electrode tab edge, there's a warping interference.

(3)Mechanism and effect
Mechanism
 
300x200Effect picture 1 
300x200Effect picture 2 
(4)Lighting model selection, LTS-HPR100-W+LTS-3COX50-W combined light
300x200LTS-HPR100-W  
300x200LTS-3COX50-W
Reason: tilted electrode tab, creases can be filled with ring shadowless light, coaxial light makes the front face more uniformity, electrode tab is tilted less than 15 degree.

Case 2
(1)Work piece picture

(2)Inspection requirement:FOV 40*50mm, to inspect the solder of electrode tab, to highlight the solder joint and contour of electrode tab.

(3)Mechanism and effect
Mechanism
 
300x200Effect picture 1 
300x200Effect picture 2
(4)Model selection:LTS-3DM116-W+LTS-COX8050-R+LTS-3COX40-W combined light

Reason:Use LTS-3DM116-W and LTS-3COX40-W together to inspect the solder, uniformity light, slight tilt can also be stable imaging, LTS-COX8050-R can distinguish the contour and front. 

Case 3
(1)Work piece picture


(2)Inspection requirement:FOV 20*30mm, inspect the end face of electrode tab and location.

(3)Mechanism and effect
Mechanism
 
300x200Effect picture 1
300x200Effect picture 2
(4)Model selection:LTS-RN7400-B
LTS-RN7400-B

Reason:The use of a smaller low-angle ring light avoids reflections from the white background and highlights the white outline of the electrode tab. 

That's all for today's sharing. Thank you for your support. See you next time.
 
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