TEST, SAFETY & SYSTEMS
colour guide and webinar make it easy to get started. “UV-Vis spectroscopy is a versatile
technique that lends itself well to a multitude of analyses – from testing metal ion purity of raw materials to predicting electrolyte stability and performance to ensuring compliance with wastewater regulations,” Taylor continues. “Its capability to provide accurate and precise measurements of chemical and physical properties is the reason why battery scientists trust spectroscopic techniques in quality control.” The company’s compact EasyPlus
UV-Vis spectrophotometer is a simple and cost-effective method for analysing electrolyte solutions. The instrument measures electrolyte impurities in seconds without time- consuming sample preparation. The spectrophotometer’s built-in reference colour scales compare the electrolyte’s measured colour value with stored colour reference scales to detect deviations. It also
At Mettler Toledo, we
recognise the critical importance of predicting battery life for the development of future zero-emission vehicles
measures the amount of UV and visible light absorbed or transmitted by the irradiated electrolyte solution, indicating the sample’s purity. Either method quickly provides clarity for the customer.
PREDICTING BATTERY LIFETIME UV-Vis spectrophotometry is used to analyse the gradual decline in battery performance, which is known as battery degradation. By tracking changes in the absorption spectrum of the electrolyte over time, a reference curve is established. As the battery ages and its performance declines, the stored electrolyte is measured and compared to the reference curve to determine the extent of degradation. This allows engineers to predict the life of the battery with greater accuracy. “At Mettler Toledo, we recognise
the critical importance of predicting battery life for the development of future zero-emission vehicles, the development of renewable energy technology, and balancing energy needs through battery energy storage systems (BESS),” adds Taylor. “Our UV-Vis spectrophotometers offer exceptional flexibility, accuracy, and precision, allowing battery manufacturers to predict and optimise battery performance, ensuring the safety of those batteries, and driving innovation in battery technologies.”
MULTI-PARAMETER ANALYSIS Engineers can effectively automate their analyses with Mettler Toledo’s UV-Vis Excellence instruments using a cell changer or autosampler system. Meanwhile, productivity can be boosted with a multi-parameter
Simon Taylor is the segment business development manager at Mettler Toledo
system with, for example, titration and PH measurements. In this way, engineers can not only increase their analytical efficiency but also save time during the documentation and reporting process. Overall, UV-Vis spectrophotometry
is a powerful and reproducible technique engineers can leverage to determine key battery performance indicators, eliminating the need for separate colorimeters. The ability to accurately predict battery lifetime is important for several reasons, such as preventative maintenance, warranties, state of health, and effects of usage, all of which can be used to improve cell design and manufacturing. In turn, battery lifetime management plays an important role for the successful commercialisation of new EV and hybrid vehicles, which are crucial to the transport sector’s ongoing pursuit of decarbonisation.
For more information visit
www.mt.com
www.engineerlive.com 37
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