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2014


Stationary battery string testing using infrared thermography

Dave Sirmans



In stationary power battery strings, a single bad cell can cause failure. Cells have multiple modes of failure, each of which causes electrical instability within the cell. Many of these modes of failure will also have a thermal indication that accompanies them. These thermal indications can be detected with thermography and provide early warning signs of impending cell or circuit failures. This paper will explore the various modes of cell charging and power circuit failures and how those modes of failure could present thermally.


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