Current Projects


01/2017 – 12/2019 – InTres

intres efre nrw efre eu

Innovative support materials for optimizing current conductors within electrical storages.

To enable the decentralized storage of energy up to electro mobility technology, a continuous development of electrical storage is needed. The research is thereby focussing on the efficiency of electrical storages. On the one hand they must be cost efficient and on the other hand the durability and the performance need to be improved. Previously the research was mainly about cell chemistry. However, the conductive support materials have a crucial influence on the performance and cost of Lithium-Ions batteries.

Within the InTres project the performance of electrical storages based on Lithium-Ions technology shall be improved by a resource-saving application of innovative support materials. The objective is to replace the actual current conductors (Al- or Cu-foil) in the battery cell with 3-dimensional support materials (expanded metal, metal foams, metallic net) as well as to investigate their potential.

The consortium consists of research and industry partners and offers thus a complete supply chain of the battery production. Additionally, a broad know-how and an excellent infrastructure is present. This project has received funding from the European Regional Development Fund under grant agreement No EFRE-0800645.



06/2017 – 5/2020 – Flex-G

flex-g BMWT

Development of R2R technologies for producing flexible facade elements with switchable energy transmissibility.

The joint project FLEX-G systematically investigates technologies for fabrication of translucent and transparent roof and facade elements with integrated opto-electronic devices, to allow dynamic switching of the total energy transmittance (g-value) of these elements. Therefore, flexible electrochromic layer stacks are directly applied on ETFE web surface in Roll-to-Roll coating processes. ETFE is a common material used for membrane roofs and facades in event halls, airports or railway stations. A second part of the project deals with technologies for direct integration of large-area flexible solar cells based on organic photovoltaics (OPV) into ETFE membrane elements. The project Flex-G contributes thus significantly to energy saving and energy harvesting technologies in buildings. Flex-G thereby supports the aim of the government to reduce the primary energy demand until 2050 to 50 % through these developments.



04/2017 – 03/2020 – SolGel-PV

solgel BMBF

Multifunctional Sol-Gel layers for the photovoltaic industry.

In the SOLGEL-PV project nanoscale sol-gel layers for usage in solar cells layers are produced, deposited and structured. They shall be demonstrated in an innovative applications: (i) antireflex structure that uses the Mie-resonance for a better light coupling, (ii) at the backs contact of the first solar cel for a better optical performance and higher adhesion and (iii) as a conducting and adhesive connection layer for a cost efficient realization of tandem solar cells. The layers are deposited by in-line capable methods. The nanostructuring is executed in a roll-to-plate technology.

The project incorporates developments in the material science as well as in the regime of process techniques. Sol-gels will be produced by tailored synthesis for different prototype applications. Additionally, deposition and embossing processes for large scale applications are realized.

The following objectives for the three defined prototype applications are specified: Due to the embossed Mie-resonators in the sol-gels, better properties compared to an iso-textur shall be achieved. The sol-gel interlayer at the backside contact shall lead to a higher short-circuit current density of 0.5 mA/cm² higher than for an Al/Si contact due to the reduction of parasitic absorption. Simultaneously the adhesion will be high enough for a later cabling of the modules. With a connection layer for tandem solar cells a III-V wafer and a Si-Wafer shall be permanently connected to each other with a high transparency (>98 %) and a lower voltage loss (< 1mV).

The developed, innovative and cost efficient technologies as well as the higher energy yield are leading to a higher cost efficiency and brings the involved companies a unique selling point and thus a competitive advantage.



12/2016 – 11/2019 – PowderSizing

powdersizing BMWT

Process- and materialefficient production of thermoplastic-glass bicomponent fibers for the production of continuous-fiber-reinforced thermoplastic components

The mechanical properties of thermoplastic composites depend on the fibre volume content, moistening and distribution of the glass fibres and thus on the strength distribution. The theoretical performance limit is not completely fulfilled by already available composites based on hybrid yarns or film-stacking. In addition, the coating speed is limited to 100 m/min leading to a low economic efficiency. Therefore, new technologies are necessary to achieve the theoretical performance limit in real industrial processes such that the composites could also be used in aircraft engineering. Currently the semi-finished materials are mostly used in the automotive sector. The objective of this research project is the development of a coating system leading to a speed of 2,000 m/min, by which all filaments inside the composite are equally coated and the economic efficiency is increased significantly.



07/2017 – 06/2019 – iCoat

icoat interreg

Development and validation of novel slot-dies concepts for low-viscous inks.

In the iCoat project novel slot-dies for intermittent coating of low-viscous inks are developed and integrated into the „Advaned Multi coAting LInE“ (AMALIE) line at Holst Centre. To qualify these novel slot-dies, Perovskite solar cells are produced and analysed. The ultra-fast switching of the slot-dies is enabled by using piezo technology and will allow less material consumption and higher production yields. Thus the project offers further potential for lower production costs. The software integration within this project is executed by Verautomation.



01/2018 – 12/2020 – Supersmart

supersmart supersmart_eu

Scale-Up of Printed Electronics Recyclable SMART materials

In day to day products, including labels and packaging, there is a rising consumer demand for smart products, that is to say, objects that are able to be part of a digital ecosystem. Embedding sensors and communications technologies while minimizing the environmental impact of these smart products is a key challenge for the future. The major way of achieving this is to work on the base materials of the electronics components to be embedded in, by providing organic materials instead of rare and toxic inorganic ones when applicable. That is the objective of the SUPERSMART project which will enable the direct printing on paper of sensors, displays and electronics instead of bulk conventional electronics devices. It will make the recyclability of such smart products easy. Lead by Arkema, a world-wide chemical actor, together with Arjowiggins, providing technical papers for printed electronics, leading technical organizations (CEA, FraunhoferInstitute, Joanneum Research), first-class universities (University de Bordeaux and Lisbon) and innovative SMEs (Coatema, Luquet & Duranton), the SUPERSMART project aims at scaling up printable smart materials for the smart and recyclable products of the future.



01/2018 – 12/2021 – Greensense

greensense greensense_eu

Sustainable, wireless, autonomous nanocellulose-based quantitative Drugs-of-Abuse (DoA) biosensing platform

Printed electronics is one of the fastest growing technologies in the world. Paper and plastic are two types of flexible materials that constitute key substrates in the development of future flexible electronic devices. On the contrary of those based on more conventional plastic substrates, paper-based electronics, made from cellulose, have the advantages of low cost, recyclability and can be expected to have a significant impact in the reduction of environmental impact of "electronic trash" and in providing new opportunities to the pulp/paper manufacturing industry. Unfortunately, the surface properties of conventional paper are not suitable for printed electronics and, typically plastic coatings based on fossil-oil polymers are applied. From a sustainable point of view, this has augmented the interest in alternative renewable biopolymer films and coatings with similar properties. Among the different alternatives, nanocellulose (NC) based films with strength, high aspect ratio, transparency and low porosity and smooth surface roughness are a promising potential alternative.

In the project GREENSENSE we merge healthcare diagnostics and printed electronics in the form of a fully-integrated biosensing platform using nanocellulose. The biosensing platform with the newly developed printed DoA biosensors will integrate different NC-based printed electronic components (supercapacitor and/or a primary battery as printed energy storage (E. storage), display and NFC antenna) and a single microchip to have energy autonomy, wireless communication and to be easy for the user to read the results. High output printing techniques, such as sheet-to-sheet (S2S) screen printing and/or inkjet printing will be used for the printing of the different functional inks onto NC-based substrates. The final NC-based biosensing platform will be easy to operate, flexible, mass producible, cost-effective, environmentally friendly, disposable, and recyclable and will have low power and energy consumption.



10/2017 – 09/2020 – SOLID

solid BMWT

Innovative solid state batteries based on sol-gel materials with a Li-metal anode and implemented 3D structure.

One key factor regarding the electro mobility future are inherently safe and power efficient battery technologies. Solid state approaches have the potential to fulfil these demands. Up to now the used processes and methods are not economical efficient scalable and the energy density is too low.

The objective within the project SOLID is the investigation of a solid state batteries based upon cost efficient production methods that are completely transferable to industrial scale respectively are already established in other sectors. The solid state approach enables one to use new cell concepts leading to a lower part of electro-chemical inactive materials and a lower cabling complexity. Starting from a material research for cathode- and electrolyte layers by the Fraunhofer ISC as well as an anode development by Applied Material solid state batteries in single layer format can be produced. Besides this, the Fraunhofer ISE investigates structuring of the electrical conductor and the cathode layer to reduce the intrinsic high resistances. Additionally LUNOVU develops novel laser-based methods for the crystallization behaviour of the cathode- and electrolyte layers. Coatema is going to transfer all methods to continuous processes or respectively Coatema is going to investigate the opportunity for an integration into a continuous process. The whole project is led by project coordinator Varta that is going to develop a new cell concept cooperating with all partners. Finally, the operational reliability of this solid state approaches is proven by a demonstrator.

The battery market is strongly dominated by Asian manufacturers. To participate in this market or even acquire a leadership it is important to execute basic research in the field of this future technologies. This project will create jobs along the whole supply chain, by the project lead of German small and medium size companies that use established German technologies.



01/2016 – 12/2018 – Pi-Scale

pi-scale photonis21

Within Pi-Scale an European pilot line for production of flexible OLEDs is developed.

Within the project Pi-Scale already existing European infrastructures will be used to develop an “European flexible OLED pilot line”. This pilot line will be used in an open access mode. Thus customers can be supported during the whole supply chain by product design. In addition upscaling concepts for a flexible OLED production can be validated at system level. By this Pi-Scale closes the existing gap between the today available processes flexible OLEDs production in lab size on the one hand and the mass production on the other hand. Pi-Scale leads thus to a high efficiency production of OLEDs.



05/2016 – 03/2019 – HEA2D

hea2d efre nrw efre eu

Producing and investigating applications of 2D nanomaterials.

2D materials embedded in production methods for a mass production have the potential to generate integrated and systematic product and production solution that are social, economic and ecological sustainable. By this the climate change and an environmental friendly and affordable energy supply are addressable and novel innovative solution can be elaborated. More and more applications in lab scale are showing the potential of this new material class. Nevertheless, the transfer into products fails due to the fragmented supply chain. Thus the material innovations are not leading to product innovations up to now.

Within the project HEA2D a complete supply chain consisting out of different deposition methods for 2D materials, a method for transferring plastic foils as well as the integration into plastic components in industry scale is developed. The results of this project are distributed by cooperation of the project partners to interested companies in North Rhine-Westphalia. By this even in an early stage of development suggestions and endusers can be integrated into the supply chain. Therefore, the platform of the professional group “Graphen und 2D-Materialien” and the cluster “Kunststoffland NRW” in North Rhine-Westphalia are used.



06/2016 – 06/2019 – Photon Flex

photonflex efre nrw efre eu

Photonic process chain for producing flexible organic solar cells in a R2R process

The objective in the project PhotonFlex is the development and investigation of innovative technologies for a cost efficient and highly productive fabrication of flexible organic solar cells. Thereby the production of flexible solar cells based on a coating with active absorber should be transferred from the lab scale close to an industry scale production chain. The project focusses on the usage of laser based methods for a high dense series connection as well as on high efficiency laser based drying methods. Additionally, novel encapsulation methods based upon plastic laser welding are qualified for a high rate process.

Coatema thereby integrates new assembly groups for a laser based encapsulation into an existing machinery at the partner ILT. Besides a laser based beam welding a gap slit welding method are realised. Together with the partners these new methods are demonstrated and evaluated by organic photovoltaic elements.