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Wissen pruefverfahren neu.png Test methods and equipment in our OELCHECK laboratory Wissen doc.png Complex terms – simply explained Wissen fragen 02 neu.png Q&A Questions and answers Wissen tabellen neu.png Summaries and tables Tipps und tricks.png Trends, Tips & Tricks

E-mobiles – Lubrication and Cooling while Electrified

The motto: “No more petrol!” Quiet, emission-free electric vehicles will dominate the streets in the future. Although e-mobiles no longer run on petrol or diesel, they still need lubricants and functional fluids. However, these lubricants are different from known classics. Tremendous expectations are placed on lubricant manufacturers and oil analysts with regard to the development and monitoring of new products. E-mobility is booming, and the current supply of hydrogen-powered fuel cells or alternative fuels will most likely not cover the demand in the next years. New registrations for battery-powered electric vehicles in Germany are still marginal. Approximately 220,000 electric cars were registered on 1 November 2019. However, numerous promotions and billions of investments from automotive manufacturers support the further development of e-mobility so that Germany no longer lags behind China and the US. The technological goal is ambitious. Vehicle manufacturers, suppliers, politicians and we as end consumers will be confronted with many questions and challenges in the next years. The more e-mobiles are on the road, the higher the demand for electricity. Control over the entire electrical grid must be optimised, and the network of charging stations must be expanded for comprehensive coverage. Charging times for batteries are to be further reduced and ranges maximised. The currently common lithium-ion battery exhibits high specific energy, but the worldwide sought-after metal is highly reactive. Its usage has many negative consequences for the environment and local population. Although used lithium-ion batteries can be recycled, the process remains extremely elaborate. The battery must be operated within a specific temperature range in order to achieve a long service life and optimal effectiveness of the vehicle. Other vehicle components also play a role. (Full article ...)

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Samples from abroad

We have commissioned OELCHECK for many years with the analysis of lubricant samples from our facilities in Germany. Our representatives currently use laboratories based in the respective country for lubricants that are used abroad. Unfortunately, we are neither satisfied with the quality (large deviations for trend analyses) nor the scope of the analysis. An option to enter the determined values in our own database in Germany is also not envisaged, and a well-founded diagnosis of the values is not provided. Can OELCHECK in Germany examine samples from other countries? (Full article ...)

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REM-EDX, this abbreviation says a lot! It stands for a new test method, the "raster electron microscopic analysis by means of energy-dispersive micro range analysis". The process precisely determines the elemental composition of particles. Based on the results of the determined metal alloys, inferences can be made with regard to certain components from which particles with a size of only a few micrometres originate. Thus, the REM-EDX analysis provides the perfect support when searching for machine elements with signs of wear or determining contaminations in the form of solids. The analyses are performed by Industrieanlagen-Betriebsgesellschaft mbH (IABG) in Ottobrunn near Munich. OELCHECK’s cooperation partner has the necessary high-tech equipment and well-founded expertise for examining and assessing complex damage incidents. (Full article ...)

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