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Impedance measurement within Micro-Ohm range

02-08-2011 12:57 PM CET | Energy & Environment

Press release from: FuelCon AG

TrueData-EIS impedance spectroscopy

TrueData-EIS impedance spectroscopy

FuelCon further enhances impedance analyzer device TrueData-EIS

Responding to changing market and customer requirements for impedance measuring devices, FuelCon has enhanced its TrueData-EIS electrochemical impedance spectrum analyzer, allowing now measurements within Micro-Ohm impedance range.

Impedance spectroscopy plays a major role especially for battery characterization by providing, amongst others, information about quality or deterioration behaviour. The lately observable trend of Li-Ion batteries towards higher capacities implies significant smaller internal resistances inside the cell. This means, measurements within decreasingly measuring ranges and very high accuracy are needed.

For achieving fast and precise evaluation of those small impedances, the AC modulation current must increase during galvanostatic measurements in order to receive a respectively higher voltage response. With the enhanced TrueData-EIS of FuelCon the modulation current can be varied in a range between 2.5A and 10A, depending on the requirements. Even at very low frequencies, this ensures accurate measuring of impedances within 2 periods. Optionally, the device provides impedance analysis without DC offset, which means test item’s state of charge (SOC) will be unchanged. With this flexibility, the TrueData-EIS can be easily integrated into existing testing systems.

FuelCon is the global leading supplier of test and diagnostic systems for fuel cells, and batteries. For years, the FuelCon name is recognized for extraordinary product quality, high technical standard, dedication to costumer service and innovation. With its test station series “Evaluator-LT” and “Evaluator-HT” the company manufactures test rigs for all typical fuel cell technologies like PEM, DMFC, SOFC or MCFC in a power range between a few watts up to 150kW fuel cell performance. The “Evaluator-B” enables the fully automated testing of batteries, super capacitors and energy management systems. Furthermore, FuelCon offers with the product lines TrueData and TrueXessory a various portfolio of diagnostic equipment and accessories. Aside its headquarters in Germany, FuelCon is with its subsidiary FuelCon Systems Inc. and several Representatives active in Europe, North America and Asia.

FuelCon AG
Steinfeldstr. 1
D-39179 Magdeburg – Barleben
T + 49 39203 514 400
F + 49 39203 514 409
www.fuelcon.com
Press contact: Ms. Andrea Bartels

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