Ph.D. student employment in Multifunctional carbon composite materials

Carbon fibre reinforced polymers (CFRP) are versatile materials. Our basic idea is to use carbon fibres to carry mechanical loads and as electrodes in a structural battery, and to use a lithium ion conductive polymer electrolyte matrix for mechanical transfer of loads between fibres, for lithium ion transport and electrical isolation between the electrodes. Carbon fibres are particularly suitable for this type of multifunctional use as graphitized carbon is widely used both in high-performance structures and the electrodes, the latter for its ability to intercalate lithium. Structural batteries multifunctional facilities are expected to provide significant savings in overall system mass and volume.

The approach is relatively new and faces significant challenges in terms of technology, design, materials and applications. So far, our research has focused on two of these challenges, the use of commercial carbon fibres as the negative battery electrodes and the use of solid polymer as a matrix material. For the development of these new multifunctional materials a multidisciplinary team of scientists combining expertise in electrochemistry, polymer technology, materials science, physics and mechanics, has been established over the past few years.

Job description

In this new Ph.D.-project, which is closely linked to the work on structural batteries, we attempt to create even more functionalities for carbon fibre composites. Some initial results show that carbon fibres also can be used as sensors and actuators, and even to convert mechanical energy to electrical energy (energy harvesting). However, this still requires a battery function. The method to electrochemically functionalise carbon fibres using ion intercalation is new and the possibilities to create completely new multifunctional material combinations are vast. Within the employment, departmental duties may be included, but to a maximum of 20%.

Qualifications

Master of science in engineering physics (engineering science), alternatively vehicle engineering, mechanical engineering, chemical engineering or a related field. Since the project is highly multi-disciplinary a broad background is preferred before a more specialised. Previous experience and knowledge about composite materials, electrochemistry, material physics and chemical engineering is a merit. The research task is to a large extent experimental and previous experience with testing of materials and structures will be a merit. Good oral and written communications skill in English is required and good communications skills in Swedish an advantage.

The candidate should be highly motivated for doing scientific research and should have well developed analytical and problem solving skills as well as an interest and curiosity for multi-disciplinary problems in the context of energy savings towards a sustainable society.

To address its varied work, KTH aims to employ a diversity of talent and thus welcomes applicants who will add to the variety of the University, especially concerning its gender structure.

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