Navigation and service


IEK-9 operates a number of unique and dedicated characterization facilities to monitor fundamental electrochemical reactions in real time.

To gain ‘holistic’ and reliable insight into the complex processes that determine device performance, and that induce aging and degradation phenomena, multi-scale and non-destructuive characterization under realistic operation conditions is mandatory. Therefore, a number of dedicated ‘in-situ’ microscopic and ‘in-operando’ spectroscopic experiments are developed and applied. IEK-9 furthermore is involved in several jointly operated research facilities. Fundamental processes that can be probed are aligned along the corresponding value chains; from materials over components to commercial cells. The information obtained is then used to develop accelerated lifetime testing protocols, and are fed into the parametrization of accurate life-time prediction models.


JoLIE – Joint Lab for In-Operando Spectro-Electrochemistry: collaborative characterization platform for the in-depth spectroscopic investigation of energy conversion technologies under realistic operating conditions. The aim of the investigations is a fundamental understanding of the ongoing reaction mechanisms for knowledge-based materials and process optimization. Central investigation method of JoLIE are 'in-operando' Magnetic Resonance methods coupled with catalytic methods.

JoLIE is operated jointly with the Max Planck Institute for Chemical Energy Conversion (MPI-CEC).



SABLE – Multi-Scale Imaging of Electrochemical Components and Cells: collaborative multi-modal characterization platform for the imaging of fundamental mechanisms over multiple time and length scales using different techniques. Special focus is placed on the correlative approach description of structural, chemical and dynamic information by means of different techniques to an overall understanding of structure-property relations.
Part of the instrumentation is operated jointly with the Ernst-Ruska Center.

Ernst Ruska - Center


HEMCP – Helmholtz Energy Materials Characterization Platform: collaborative characterization platform for the in-depth microscopic characterization of novel materials in the area of energy technology. Particular focus is on ‘in-situ’ and time-resolved 3D-information on structural, electronic and chemical properties.



HEMF – Helmholtz Energy Materials Foundry: collaborative research-and-development platform dedicated to the synthesis of new and improved materials for energy conversion and storage ap-plications. Among other topics, the scientific focus of HEMF will be on materials and applications in the field of electrolyzers, fuel cells and batteries, with (electro)catalysis as an overarching theme.