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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Light is transmitted through or from a separator of a battery cell or scattered within a battery cell and received by one or more light detectors. The light that is normally transmitted through the separator is scattered, absorbed, wavelength-shifted or otherwise distorted by an impending fault in the vicinity of or within the separator. The change in light due to the impending fault is measured by a detector and a signal from the detector is processed to identify the impending fault so that a warning can be generated indicative of the impending fault.
Dvorsky, James E. (Plain City, OH), Risser, Steven M. (Reynoldsburg, OH), Saunders, James H. (Worthington, OH), Morrow, C. Alexander (Gahanna, OH), Nippa, David W. (Dublin, OH)
14/ 414,984
August 9, 2013
GOVERNMENT LICENSE RIGHTS [0001] This invention was made with support from the United States (US) Government under Contract No. DE-AR0000272 awarded by Advanced Research Projects Agency-Energy (ARPA-E). The US Government has certain rights in the invention.