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Ultra-low temperature sintering of Li based ceramics for energy storage


Project Description

Cold sintering is a revolutionary ceramic technology in which densification is induced at < 300 degrees C. It is particularly suited to ceramics with Li chemistries, reducing the CO2 emissions associated with ceramic processing at high temperature (700 degrees C. The primary objectives of the project are to optimize the densification of planar multilayers of Li based compositions whilst still retaining high values of Li ion conduction with a view to developing a range of new materials/composites for Li-ion capacitive storage and battery applications.
Structure microstructure and properties will be investigated using XRD, SEM, TEM and impedance spectroscopy. Optimised compositions will be used to fabricate planar tapecast layers which will be multilayered and cold sintered to form planar ceramics. A combination of classic and in-operando XRD along with transmission electron microscopy will be used to study the interfacial reactions. The electrical properties will be investigated using impedance spectroscopy. The PhD is part sponsored by the Centre for Dielectrics and Piezoelectrics (CDP), of which the UoS is an academic partner alongside North Carolina and Pennsylvania State Universities. The CDP has 25+ industrial members which include Apple, Samsung, Murata, Taiyo Yuden and Ilika Technologies. Secondments to US partners and to CDP companies are encouraged within the programme.

Funding Notes

This studentship will pay tuition fees in full and a stipend for living expenses for four years. This stipend will be at the RCUK minimum which for the 2019/20 academic year is £15,009pa. An enhanced stipend could be available for outstanding candidates.

Funding covers home tuition fees and annual maintenance payments of at least the Research Council minimum for eligible UK and EU applicants. EU nationals must have lived in the UK for 3 years prior to the start of the programme to be eligible for a full award (fees and stipend).

How good is research at University of Sheffield in Electrical and Electronic Engineering, Metallurgy and Materials?
Materials Science and Engineering

FTE Category A staff submitted: 34.80

Research output data provided by the Research Excellence Framework (REF)

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