Batteries: Research, development and application

Batteries: Research, development and application

21. 06. 2018

A group of experts in the Department of Electrotechnology under the leadership of docent Petr Bača under the auspices of the Faculty of Faculty of Electrical Engineering and Communication Technologies at VUT in Brno performs cutting-edge research in the field of batteries. This group of experts also includes Dr Tomáš Kazda, a leading Czech expert in lithium-ion and so-called post-lithium systems (e.g. lithium-sulphur systems or sodium-ion batteries).

We deal with basic and applied research and development in the field of batteries. We analyse and evaluate battery parameters with high accuracy and in compliance with applicable European standards. Thanks to the knowledge and technologies that we work with every day, we are able to specify battery parameters and characteristics, define appropriate measures, and propose practical solutions for powerful, high-capacity applications that emphasise system reliability and quality. We have the ability to participate in research and development projects on the national and international levels with real applied outcomes.

Possibilities of testing and equipment, service and cooperation offer

We provide analyses of capacity and current properties of batteries using state-of-the-art potentiostatic and galvanostatic equipment. Using the GCPL (Galvanostatic Cycling with Potential Limitation) method we define the battery capacity. To analyse the load-current characteristics, we use the Rate Capability (RC) procedure. Using this measurement, we find the maximum current the battery can supply and the capacity it can provide at variable loads. We use the Electrochemical Impedance Spectroscopy (EIS) to find the source impedance of the battery. Based on this measurement, we define the battery charge status (State of Charge, or SOC) and specify approximate battery conditions (State of Health, or SOH).

The measurement accuracy is ± 0.3 mV for voltage measurements and 0.2% for current measurements.  We are able to analyse individual battery cells or blocks in the voltage range of 0 to 60 V and with a maximum current of 120 A.

We can perform the above-mentioned tests in environmental (climatic) chambers at temperatures in the range of 200 °C to -45 °C with controlled humidity. With regard to safety, we offer battery tests in an explosion-proof chamber with fire detection and automatic fire extinguishing using an inert gas. We are equipped with glove boxes with argon or nitrogen atmospheres for operations with batteries that require inert atmospheres.

biologic potentiostatBioLogic Potentiostat          

mbraun glove boxMBRAUN Glove box.

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