Skip to main content
Go to the home page of the European Commission (opens in new window)
English en
CORDIS - EU research results
CORDIS

Lithium-Conductive Phase-Independent Electrolytes

Project description

Developing new electrolytes for better lithium batteries

Lithium-ion batteries have revolutionised portable electronics, offering a rechargeable solution to traditional batteries. They use lithium ions moving between the anode and cathode and have a long cycle life. The electrolytes that mediate ion movement are usually either liquids or solids, each with different properties. A new kind of phase-independent electrolyte works in both solid and liquid form but only carries negative ions. With the support of the Marie Skłodowska-Curie Actions programme, the Li-PIEs project will create an electrolyte that can carry lithium ions. Researchers will study how molecular structure influences conductivity to design high-performance, phase-independent electrolytes. The project is expected to open new avenues for safer, more efficient energy storage technologies.

Objective

I propose combining organic synthesis, theoretical modelling, and materials science to develop a fundamentally new type of lithium- conducting electrolyte. Electrolytes are a vital part of modern life – for example, they are key components of the lithium-ion batteries powering personal electronics and electric vehicles. The electrolyte acts as the medium to transfer charges between the electrodes and its properties and performance depends on the type of material used. Different requirements associated with different sizes and types of devices is driving the development of new electrolyte materials.
Traditionally, these materials are classified as either solid- or fluid-phase electrolytes, and the mechanisms of charge transfer differ between the two phases. Recently, a new type of electrolyte has been developed by the host PI that can function as either a solid or liquid electrolyte without losses in performance – they are phase-independent electrolytes (McGonigal et al., Science, 2024, accepted). However, these materials transport anions, while most batteries require cation-conducting electrolytes (e.g. lithium ions). To harness the potential of this new class of electrolytes, this concept must be adapted to apply to cation-conducting electrolytes, and this requires the development of new
molecular designs, their synthesis and characterisation.
I will use DFT to model the structure and assembly of cyclopentadienide anions to identify candidates that have suitably diffuse charge and flexible structures to act as phase-independent electrolytes. I will then synthesise the top candidates and characterise their phase transition temperatures, phase structures, and lithium-ion conductivities. The relationship between molecular structure and the material properties will be developed to allow for the rational design of phase independent electrolytes. This will generate new research directions for the development of high-performing organic electrolytes.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

See all projects funded under this funding scheme

Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

See all projects funded under this call

Coordinator

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
Net EU contribution
€ 260 347,92
Address
WELLINGTON SQUARE UNIVERSITY OFFICES
OX1 2JD Oxford
United Kingdom
Region
South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data