Customcells® Electrolytes & Electrolyte Development

The growing global demand for lithium-ion batteries and the high technical demands for energy, power density and service life are continuously leading to the development of new electrode materials. A prerequisite for compatible use of cell components is the use of tailor-made electrolytes. CUSTOMCELLS® draws on know-how developed over many years and numerous patents relating to battery electrolytes and is thus able to provide a suitable electrolyte within a very short time.

CUSTOMCELLS® also meets individual customer requirements, e.g. the use of battery cells in high and low temperature ranges, by means of customer-specific electrolyte development.. If required, CUSTOMCELLS® will develop a suitable electrolyte specifically for your application.

Development of cutting-edge electrolytes

CUSTOMCELLS® participates in E-Lyte Innovations GmbH in the field of electrolyte development and production. Founded in May 2019, the company develops, optimizes and markets application-specific ready-to-use electrolytes, standard electrolytes and electrolyte components for lithium-ion batteries and other energy storage technologies. The focus is on the optimization, benchmarking and production of electrolytes according to special customer requirements as well as contract manufacturing. CUSTOMCELLS® guarantees the safe, fast, efficient provision of solutions based on the highest level of know-how in order to develop individual customer requirements and the specific requirements of their battery systems in a result-oriented manner.

Through this partnership, CUSTOMCELLS® will serve the growing market demand for application-specific lithium-ion batteries in an even more targeted manner. Basic formulations are combined and offered with adapted electrolytes, so that great success has already been achieved in the areas of performance, temperature spectrum, new cell chemistries and service life.

Benchmarking service

CUSTOMCELLS® can support you with regard to the electrochemical evaluation and benchmarking of new electrolyte components for the use in the lithium-ion battery market as well as to define a customer-specific market entry strategy for your individual component. The benchmarking study will start from the development of an individual testing strategy including the design of experiment, followed by testing of the new electrolyte formulation (including the new component) within laboratory test cells. After the elucidation of the proof of concept, the new electrolyte formulation will be tested in larger-scale pouch cells and undergoes safety testing within certified laboratories to generate meaningful marketing data. CUSTOMCELLS® highly recommends that the customer conducts a detailed survey of patents and other IP-rights that could be relevant for the final product before market entry. If requested by the customer, CUSTOMCELLS® can support such a survey based on its comprehensive technical expertise and can assist the customer in identifying potentially relevant prior art and IP-rights in the technical field.

Supplementary services & measurements

CUSTOMCELLS® offers comprehensive consulting services and sublicensing options for IP in the field of electrolytes and energy storage - especially for the application area of lithium-ion technology. Furthermore, CUSTOMCELLS® offers extensive service measurements in the field of electrolyte development and characterization such as, among others:

  • Determination of the temperature-dependent ionic conductivity
  • Wetting properties on battery materials (e.g. separator, electrodes, foil material, etc.) and in cells
  • Determination of flammability according to Closed Cup method
  • Determination of flammability
  • Determination of gassing (formation, storage, cycling)
  • Determination of purity (e.g. water content according to Karl Fischer method, gas chromatography etc.)
  • Density measurement
  • Thermal characterization using TGA/DSC
  • Determination of viscosity
  • Electrochemical characterization (e.g. electrochemical stability window on inert or active materials, anodic resolution current collector, impedance measurements, electrochemical constant current cycling, pulse tests, etc.)
  • Recording of potential curves in 3-electrode cells
  • Post mortem analysis


Dr. Ralf Wagner
Senior Project Planner / Sales

Fraunhoferstr. 1b
25524 Itzehoe - Germany