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Projects: Projects for Investigator
Reference Number EP/N020707/1
Title Sincere: Selective ion-conductive ceramic electrolytes
Status Completed
Energy Categories Other Power and Storage Technologies(Energy storage) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Metallurgy and Materials) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr A Aguadero
No email address given
Imperial College London
Award Type Standard
Funding Source EPSRC
Start Date 01 July 2016
End Date 30 June 2017
Duration 12 months
Total Grant Value £98,536
Industrial Sectors Energy
Region London
Programme NC : Engineering
Investigators Principal Investigator Dr A Aguadero , Materials, Imperial College London (100.000%)
  Industrial Collaborator Project Contact , University of Oxford (0.000%)
Project Contact , University of Southampton (0.000%)
Project Contact , University of Cambridge (0.000%)
Project Contact , Johnson Matthey plc (0.000%)
Web Site
Abstract Li-stuffed garnet electrolytes are poised to provide a breakthrough in battery technology since they can deliver the adequate Li-conductivity and the safety and cycle life required for the commercialisation of high-energy density batteries (i.e. high voltage Li-ion and Li-metal batteries). However, these garnet electrolytes, if they are not processed properly, suffer from severe moisture-sensitivity that leads to drastic degradation of their transport and microstructural properties - a problem that has not been universally recognised in the field. This fast degradation, which occurs even at room temperature, has so far hindered fundamental studies aimed at identifying and optimising the modes of lithium transport within the crystal lattice and the grain boundaries. Furthermore, measurements of the interfacial resistances reflect those of the decomposition products, rather than the intrinsic properties of the garnets themselves. We have developed a unique t setup that will allow a strict control of the moisture during the processing and characterization of the garnets. Our work, to date, has shown a three-fold enhancement in lithium-ion conductivity, if the degradation-related problems are addressed. The aim of this project is threefold: a) Reveal the optimum intrinsic Li-mobility in Li7-nxAxV(n-1)xLa3Zr2O12 (V = lithium vacancy) garnets b) Investigate the electrode/garnet interfaces and c) Analyse the degradation under moisture-controlled conditions to evaluate the potential use of the garnets in Li-air cells
Publications (none)
Final Report (none)
Added to Database 14/02/19