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Thermography for battery component quality assurance

  • US 9,689,820 B2
  • Filed: 10/25/2012
  • Issued: 06/27/2017
  • Est. Priority Date: 10/25/2011
  • Status: Active Grant
First Claim
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1. A method for monitoring a process for manufacturing batteries, comprising:

  • providing a thin film battery component having two opposing sides, a source of energy, and a radiation imaging sensor;

    moving the thin film battery component in a direction;

    pulsing energy from the source onto one side of the thin film battery component;

    detecting radiation with the sensor from the other side of the thin film battery component;

    moving the sensor in the same direction during said detecting;

    capturing at least one thermal image with the sensor of the other side after said pulsing and before the substantially one dimensional thermal response through the thickness of the thin film battery component dissipates in the thin film battery component; and

    identifying a defective region of the thin film battery component from the at least one thermal image.

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