TEST, SAFETY & SYSTEMS
SPECTRALANALYSIS
As demand for lithium-ion batteries increases, how can spectral analysis ensure quality and performance?
L
iquid electrolytes play a key role in the performance and lifetime of batteries. The electrolyte fluid within
lithium-ion batteries enables the efficient intercalation of lithium ions between the electrodes. The quality of the electrolyte is therefore essential, as impurities can affect the function and safety of the energy storage system. “Rechargeable batteries have
become an indispensable component in many industries, including automotive, aerospace and energy storage,” says Simon Taylor, Segment Business Development Manager at Mettler Toledo, a global supplier of precision instruments and services.
“Their long-term performance and stability are critical factors in determining the efficiency and reliability of these applications. To optimise battery design and performance, manufacturers need accurate and precise analytical tools to measure and analyse various chemical and physical measurements. UV-Vis spectroscopy is one such tool that can provide valuable insights into product performance and lifetime.”
FAST AND RELIABLE ELECTROLYTE TESTING Ultraviolet-visible (UV-Vis) spectroscopy is a widely used technique in many areas, from
bacterial culturing, drug identification and chemical research, to quality control in the beverage industry and, in this particular case, analysing the performance and lifetime of lithium- ion batteries for electric vehicles (EVs). Generally, the technique works by measuring the amount of discrete wavelengths of UV or visible light that are absorbed by or transmitted through a sample in comparison to a reference or blank sample. Mettler Toledo’s compact UV-Vis
spectrophotometers allow users to evaluate the suitability of electrolyte solutions easily, quickly and cost- effectively. Built-in reference scales provide ready-to-use results, while a
UV-Vis spectophotometers provide accurate and precise measurements of electroylte solutions
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