Technical Paper: Accelerated battery analysis through connected microscopy

Correlative analysis of the microstructure of an aged lithium-ion battery

Learn how BMW accelerated their battery analysis through connected microscopy leading to increased performance, range & longevity of batteries in electric vehicles

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Batteries play an important role in the performance, range and longevity of an electric car. To produce efficient, reliable batteries that last, it is necessary to use top-quality materials and precise production techniques. Quality criteria range from selecting the best possible materials – including Lithium compounds, anode and cathode materials and separator foils – to control critical steps during the electrode manufacturing process. Understanding the microstructure and possible sources of contamination is key. Connecting different microscope types opens up completely new possibilities in quality assurance of batteries. In this way, the combination of light, X-ray, and scanning electron microscopes allows batteries for electric vehicles to be efficiently and accurately analyzed for faults. ZEISS Industrial Microscopy Series with coordinated hardware and inter-compatible data sets play a pioneering role here – and reduce previously time-consuming analysis workflows to just a few iteration steps.

Correlative analysis of the microstructure of an aged lithium-ion battery

Correlative analysis of the microstructure of an aged lithium-ion battery.
Above: Light microscopy (a. Bright field; b. Polarized light)
Below: Scanning electron microscopy (c. EBSD; d. EDX elemental analysis)
Courtesy of Aalen University

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