Coordination and interactions in a Li-salt doped ionic liquid

Pitawala, Jagath,1976Chalmers tekniska högskola,Chalmers University of Technology (author)

We report on the coordination and interactions in the LiTFSI doped ionic liquid PyR14TFSI over a large concentration range, 0.01 2. The number decreases with increasing salt concentration and the interaction between the Li-ion and the TFSI anions is rather weak in this concentration range. At intermediate concentrations, 0.1 0.2, N-TFSI/Li decreases further indicating the transition to more complex structures with Li-ions bridging TFSI anions. We also show that the evolution of the microscopic structure as a function of Li-salt concentration is mirrored in the behaviour of macroscopic properties such as the ionic conductivity and the glass transition temperature, which also show a crossover in the same concentration range.

Martinelli, Anna,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)annamart (author)
Johansson, Patrik,1969Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jpatrik (author)
Jacobsson, Per,1958Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)pjacob (author)
Matic, Aleksandar,1968Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)matic (author)
Chalmers tekniska högskola (creator_code:org_t)

By the author/editor: Pitawala, Jagath ...; Martinelli, Anna ...; Johansson, Patri ...; Jacobsson, Per, ...; Matic, Aleksanda ...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Materials Chemis ...

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