CPC G01B 11/0641 (2013.01) [H01M 4/382 (2013.01); H01M 4/62 (2013.01); H01M 10/052 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01)] | 16 Claims |
1. A system for measuring a thickness of a coating arranged on an anode substrate, the system comprising:
an optical measurement system configured to transmit a light signal toward the anode substrate through the coating such that the light signal is reflected from the surface of the anode substrate,
wherein the light signal has a known first polarization, and
wherein the anode substrate is a flexible lithium metal anode and the coating is a polymer coating;
a detection module positioned to receive the reflected light signal and configured to (i) determine a second polarization of the reflected light signal, wherein the second polarization is different from the first polarization and (ii) measure a polarization difference between the first polarization and the second polarization; and
a measurement module configured to receive the measured polarization difference, calculate the thickness of the coating based on the measured polarization difference, and generate an output based on the calculated thickness.
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