Institute of Solid State Physics
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SS22 WS22 SS23 WS23 SS24 WS24 Guidelines for Master Students
Fiber optics enabled 2D multiparametrical battery cell sensing In order to further accelerate development and increase functional safety, quality and reliability of lithium-ion batteries, new ways for real-time, multidimensional, in-operando monitoring of batteries are looked for. In this work, the combination of Fiber Bragg Gratings (FBG) installed on such batteries will be under investigation. FBGs are a class of fiber optic sensors that are extremely sensitive to environmental changes, for example in pressure, humidity, mechanical stresses and temperature. In several experiments, FBGs together with conventional PT100 and strain-gauge sensors will be installed onto selected lithium-ion battery cells and compared to each other. The battery behaviour upon cycling (charging+discharging) regarding evolving strains and temperatures will be monitored over time and over the battery surface area. |
