paper battery photovoltaic RFID antenna conducting ink counterfeiting
Designing gel-polymer type flexible batteries on base-paper by UV photo-reticulation and deposition of electrodes by printing/coating process

  • The manufacturing conventional processes of energy storing systems need the use of organic and fluorinated polymer solvents which are not fully recyclable. In addition, the active materials which constitute a battery present low mechanical properties, making necessary the use of metal/plastic supports thus limiting the flexibility of the final system.
    In this context, this project proposes to develop gel-polymer type lithium flexible batteries implementing printing techniques to design the core of the system (anode, cathode and electrolyte). The main objectives are to reduce production costs and to introduce in batteries bio sourced compounds of fibre types or cellulose by-products so that to obtain mechanical properties and flexibility similar to that of a paper-sheet and to increase significantly their recyclability.

CATIMINHY – ANR project (French Agency for National Research)
Designing active layers of fuel cells by printing processes

  • The objective of this project financed by ANR, is to design active layers that go into the composition of MEA (Membrane Electrode Assembly) necessary for manufacturing fuel cells. More precisely, it is a matter of studying and comparing the feasibility of printing processes to devise different layers: active diffusion layers, membrane.

Ligno-cellulose materials for designing conducting polymers

  • This project focuses on making productive use of wood by-products with the view to open new markets. Polypyrrole, recognised for its conducting qualities, is obtained by pyrrole chemical polymerisation. Polymerisation is started by an oxidising agent: ammonium persulphate. The polypyrrole properties are improved by a doping agent. Grafting carboxymethylcellulose, xylanes, and micro or nano cellulose fibrils, makes possible to obtain a conducting film which presents good conducting performances.

DECARTE – FUI project
Low-cost solution for RFID antenna printing on packaging board
Maud cluster

  • Labelised by the MAUD cluster (Materials and Applications for Durable Utilisation), this project, elaborated in collaboration with mass marketing and industry principals, aims at developing RFID tags integrated into packaging board, at low cost. The antenna is directly printed on the board, and the electron chip is inserted: the whole operation is made in one step only.

New printing processes for electronics

  • In electronics, manufacturing conducting networks constitutes a crucial production phase. The traditional methods employed require photolithography for instance. These techniques are long and expensive and moreover generate important waste amounts. For these reasons, developing new technologies in the domain of organic electronics constitutes a mean for reducing costs and waste. The objective of this project is to develop conducting inks with carbon nanotubes and conducting polymers which can be used in ink jet processes for applications in the printed electronics domain.

Filtering electromagnetic waves

  • Development of conducting ink based-patterns on paper, this system can be used as GSM or WIFI wave filters.

MULTILAYER – European project
Printing processes and associated inks, devoted to Microsystems manufactures

  • Very soon, the multimaterial and multifunctional microsystems will offer the possibility of new applications. Nevertheless, innovative technologies must be developed to enable their mass production.
    The objective of this European project is to propose solutions for a full-scale production of these microsystems and this by implementing technologies such as "continuous 3D technology for multimaterials deposited in layers» by using the moulding band and printed electronics concepts. Thus, these technologies should enable the manufacture of multifunctional complex systems, layer by layer with polymer and/or ceramics substrates. The presence of micro-channels or of microcavities, which can be filled or not, requires the use of accurate printing processes such as ink jet printing but the possibility to use other continuous printing processes is also under study.

Paper battery

  • This project presents several research directions: the development of cellulose materials which can be used as charge collectors; the paper functionalisation can act as electrolyte and separator, the implementation of processes enabling the production of fine batteries.

Chipless - RFID tag

  • The ambition of this project is to devise a RFID tag whose information will be recorded on the surface and/or in the mass of the packaging material. This will enable to reduce the manufacturing cost while improving the performances of remote reading and information safety.