Novel strategies to develop energy storage conversion devices using direct ink writing (DIW)
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Novel strategies to develop energy storage conversion devices using direct ink writing (DIW)
This event has been accredited for CPD by IOM3
The lecture will be streamed live as a Zoom online seminar. If you would like to join the online seminar, you will need to register with this link: cardiff.zoom.us/webinar/register/WN_35zQyGP6T6mXjHifpdKUrQ
Dr Victoria Garcia Rocha1,2
1 Institute of Carbon Science and Technology, CSIC, Spain
2 School of Engineering, Cardiff University, United Kingdom
In this talk some of the most relevant strategies to achieve effective 3D printing of dissimilar materials will be highlighted. 3D-printing through material extrusion of viscoplastic pastes is also known as direct ink writing (DIW) or robocasting. DIW was initially developed to create complex ceramic structures, hence the term robocasting, and so far, has been mainly exploited in research labs for small scale fabrication. Due to its relative simplicity DIW is the most viable option to create high resolution (~1µm- 1mm) multi-material 3D structures. Combining a wide range of materials from polymers, ceramics, metals and nanomaterials into complex geometries, tailored to fit specific requirements and applications will enable the growth of fields from sensors, energy storage and conversion or structural composites for engineering. To further develop DIW it is crucial to develop pastes with the same rheology and to understand how to postprocess them so then can be easily printed and transformed into multimaterial structures. For example, printing the active material precursor (Chemically Modified Graphene) and the current collector (copper) using a thermoresponsive polymer for electrodes in energy storage devices will be revised in this talk. The devices are designed to provide enhanced electrical properties, specific surface area, mechanical performance, packing of reduced chemically modified graphene and low active material density while facilitating the post-processing of the multicomponent 3D printed structure. Novel strategies to develop energy storage conversion devices using multimaterial DIW based in graphene materials will be also briefly introduced.