Systems and methods for detecting foreign metallic particles

A non-transitory computer-readable medium for detecting foreign metallic particles and storing instructions that, when executed by a processor, cause the processor to:

• detect automatically, through analysis of image data from a first sensor, a foreign metallic particle in or on an active material layer of an electrode strip moving between a section and a subsequent section on a roll-to-roll coated electrode manufacturing line that manufactures a plate electrode;
• determine a position of the foreign metallic particle on the electrode strip moving on the roll-to-roll coated electrode manufacturing line;
• trigger, in response to detection of the foreign metallic particle and based on the position of the foreign metallic particle and a speed at which the electrode strip is moving, a second sensor that generates a reflectance spectrum of the foreign metallic particle;
• analyze the reflectance spectrum to identify a type of metal of which the foreign metallic particle is composed;
• and
• determine automatically, based on the type of metal and associated size and morphology data, an origin, in the roll-to-roll coated electrode manufacturing line, of the detected foreign metallic particle.

A method, comprising:

• detecting automatically, through analysis of image data from a first sensor, a foreign metallic particle in or on an active material layer of an electrode strip moving between a section and a subsequent section on a roll-to-roll coated electrode manufacturing line that manufactures a plate electrode;
• determining a position of the foreign metallic particle on the electrode strip moving on the roll-to-roll coated electrode manufacturing line;
• triggering, in response to detection of the foreign metallic particle and based on the position of the foreign metallic particle and a speed at which the electrode strip is moving, a second sensor that generates a reflectance spectrum of the foreign metallic particle;
• analyzing the reflectance spectrum to identify a type of metal of which the foreign metallic particle is composed;
• and
• determining automatically, based on the type of metal and associated size and morphology data, an origin, in the roll-to-roll coated electrode manufacturing line, of the detected foreign metallic particle.