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Lithium - Ion Batteries: a microscopic view!

Project description

Powering the future with safer lithium-ion batteries

In the search for safer and more efficient lithium-ion batteries (LIBs), the EU has launched a groundbreaking project. Currently, polymer electrolytes like polyethylene oxide (PEO) show promise due to their high ionic conductivity, but they fall short of commercial liquid electrolytes. The challenge lies in enhancing the polymer's ionic conductivity by optimising its structure. Researchers are now departing from traditional trial and error. With the support of Marie Skłodowska-Curie Actions, the project employs methods such as molecular dynamics (MD) simulation and quasi-elastic neutron scattering (QENS) to unveil the microscopic details of Li+ transportation in polymers. The project’s goal is to design a polymer with improved ionic conductivity, marking a step toward safer and more efficient lithium-ion batteries.

Objective

Lithium-ion batteries (LIBs) play an important role in our daily life with a variety of applicants. To this day, significant resources have been dedicated to the development of high-performance LIBs, particularly the research necessary to identify the optimum electrolyte materials to solve the safety issue. Up to this point polymer electrolytes are widely investigated for their potential to improve batteries’ safety. Given the relative high ionic conductivity, λ, around 10-3 S/cm, poly-ethylene oxide (PEO) is frequently utilized as the polymer matrix in this scenario. But compared to the commercial liquid electrolyte, the ionic conductivity of polymer electrolyte needs to be improved for at least ten times. It is widely acknowledged that the transportation of Li+ is directly related to the segmental and backbone motions of the polymer indicating to improve the ionic conductivity by structure optimization of polymer. Instead of using the traditional trial and error method, modern innovative studies intend to develop a microscopic picture of the Li–ion transportation process to instruct the polymer optimization but it is difficult with in-house laboratory methods. This project aims at designing a polymer with high ionic conductivity. To achieve this goal, the microscopic view of Li+ transportation in polymer will be elucidated through molecular dynamics (MD) simulation and the polymer dynamics will be clarified with MD simulation and Quasi-elastic Neutron Scattering (QENS).

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

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

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Call for proposal

(opens in new window) HORIZON-MSCA-2022-PF-01

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Coordinator

FORSCHUNGSZENTRUM JULICH GMBH
Net EU contribution
€ 189 687,36
Address
WILHELM JOHNEN STRASSE
52428 JULICH
Germany
Region
Berlin Berlin Berlin
Activity type
Research Organisations
Links
Total cost
No data