On-Line Separator Film and Coating Measurement Systems for Lithium Ion Battery Manufacturers

There is hardly a device that we use in our daily life that doesn’t rely on lithium-ion batteries (LIB), from power tools, laptops, MP3 players and mobile phones, to e-bikes and other electric and hybrid vehicles.
Our FG710S infrared sensor is capable of measuring thickness of micro-porous separator film, and our Spot-On™ software for electrode patch or stripe coating provides controls to help LIB makers operate more efficiently and within specification, while improving product consistency and quality. All are integral to our TDi (Total Distributed intelligence) platform.
The FG710S Infrared (IR) Sensor measures on-line thickness of micro-porous film in the typical range of 10 to 40 microns. When used in concert with a standard beta sensor to measure film basis weight, an on-line density profile can be displayed for true on-line monitoring and control.
Spot-On™ Coating Application Software includes the following features for LIB:

  • Same Spot Measurement, to eliminate any influence from substrate variability from total variations in the coating process
  • Stretch compensation for thermal and mechanical dynamics inside the drying oven
  • True Net Coat software, to provide true coating measurement, independent of density and composition variation between substrate and coating
  • Variable Isolation software, to segregate Cross Direction from Machine Direction variations to improve control performance and speed of response
  • Gap Exclusion software for patch coating to accurately measure true coat weight without influence from the uncoated areas (gaps) of the substrate.

 

NDC Systems replace slow, time-consuming off-line sample testing, freeing up personnel time and delivering quick payback through reduced scrap, faster start-up and reduced targets for LIB coat weight and separator film. The resulting consistent product performance and long battery life help to maintain customer and supply chain loyalty.

To learn more about NDC Systems for the measurement of lithium ion battery separator film and electrode patch or stripe coatings, download our application note (requires registration): NDC Lithium Ion Battery Application Note

 

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