Fraunhofer IZM coordinates MATFLEXEND; it provides technology and prototype fabrication for the capacitive energy converter and the micro battery including modelling (WP1); secondary lithium battery electrode pastes based on fibre materials (WP2); deposition of same (WP3); assembly technologies of converter and battery including encapsulation and testing (WP4).
IMPERIAL College develops solution-processable thermal and photochemically curable nanoparticle composites based on high performance thermosets as high k dielectrics. Nanoparticles to be incorporated are metal NPs, ceramic BTO fibers (PARDAM), graphene, nanotubes, and other carbon nanoparticles. Research into processability and printability of such high k dielectrics. Device surface chemistries for robust interfaces for the harvester multilayer structures together with Univ. Vienna and IZM (WP2).
Univ. Vienna develops + provides PolyHIPE electrolyte, and also elastomers for converter spring elements. Based on commercial high temperature thermoset formulations, elastomer spring element and its adhesion to high k dielectrics will be optimized, including multilayer fabrication of spring element and scale-up of fabrication. A Li ion battery separator membrane will be provided that combines the battery separator and electrolyte function into one single, directly printable polyHIPE element.
Eurecat leads the demonstrator workpackage and studies harvester and system durability. Eurecat will integrate the harvester into garments, including printing of conductive tracks to interconnect the harvesters or micro-batteries; as well as the dielectric polymers deposition and its characterization. The work includes industrial system-level integration process of harvesters/micro-batteries into a garment.
SMARTEX will propose commercially realistic, stand-alone demo systems embedded into garments or apparels, as well as other applications in technical textiles e.g. in a sail or in a tarpaulin or in safety equipment and shoes; taking into account the relevant regulations affecting such textiles. SMARTEX will disseminate the MATFLEXEND concept into a fashion ecosystem.
LAAS-CNRS will develop an electrophoretic deposition (EPD) process for the deposition of the flexible-battery electrode materials (e.g. carbon/graphite, LTO, LiFePO4, Li4Ti5O12, LiMn1.5Ni0.5O4...).
VARTA Microbatteries will assess the compatibility of most promising PolyHIPE electrolytes with standard coated electrodes after pre-testing at IZM. Tests will also include new anode/cathode materials and recipes, feasibility of polyHIPE electrode fabrication, processing and printing technology with such novel materials. Tests will include packaging and cycling experiments, long term high temperature testing.
ANITRA Technologies will lead communication and dissemination, with particular emphasis on IPR issues. Dedicated workshops with preselected audience from research and industry. IPR-driven desk research. Set up and run the Exploitation Committee.
PARDAM s.r.o. develops and optimizes Li4Ti5O12 and LiFePO4 materials for Li-ion batteries. Development of BTO nanoparticles and nano-fibers (different aspect ratios) for capacitor dielectric layer. Supply of nanoparticles to Imperial to prepare high k dielectric composites. Production technologies for BTO fibres including electrospinning and forcespinning for thin layer (~ 5 microns) meshes.
COMCARD takes care of the smart card demonstrator specification, including materials. Adpatation of process flow, e.g. lamination parameters. Test various materials in multilayer stack to optimize converter efficiency.