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September 9, 2026
‘Balkan Hospitality Opens Doors: Studying Dialects on the Verge of Extinction
You cannot study spoken dialects from books. Instead, you need to go to a village, seek out its elders, and earn the trust of local residents before you can record hours of spontaneous stories. This is how Natalia Muravleva, Associate Professor at the Faculty of Humanities, conducts her research. Her internship in Serbia continued her long-standing study of dialects spoken by Macedonian settlers. In this interview, she discusses how diaspora cultural centres help researchers reach informants, why native speakers need to be interviewed only in their own language (otherwise, as she puts it, they may 'break'), and how a single field season helped her finalise her monograph. She also shares warm memories of autumn in Belgrade and of colleagues with whom grammar can be discussed in three languages at once.
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Perfluorosulfonic Acid Membranes as Gel-Polymer Electrolytes for Lithium Metal Batteries

Journal of Physical Chemistry C. 2024. Vol. 128. No. 10. P. 4143–4151.
Voropaeva D., Safronova E., Novikova S., Yaroslavtsev A. B.

Gel-polymer electrolytes based on perfluorinated cation-exchange membranes are promising electrolytes for lithium metal batteries due to the strength and chemical stability of the fluorinated matrix and high values of ionic conductivity and cation transference numbers, which contribute to the suppression of dendrite formation. The present work compares the main characteristics of polymer electrolytes based on short-side-chain membranes Aquivion-87 and Aquivion-98 with different numbers of functional groups and content of polar aprotic solvents (mixtures of ethylene carbonate–propylene carbonate and ethylene carbonate–N,N-dimethylacetamide), i.e., ionic conductivity, transference numbers, and stability against lithium metal. Electrochemical characteristics of the electrolytes in Li|Li and LiFePO4|Li cells show good compatibility and functionality with the Li metal anode, forming a stable Li/electrolyte boundary, and LFP|Aquivion-87-EC-DMA|Li cell shows discharge capacity values of ∼142 mAh/g at 0.1 C and 136 mAh/g at 1 C and room temperature, with a 98.8% capacity retention after 70 cycles at 0.1 C. These data indicate their promising application as polymer electrolytes in lithium metal batteries.

Research target: Chemistry
Language: English
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Keywords: Ионная проводимостьперфторированные мембраныperfluorosulfonic acid membraneionic conductivityполиэлектролитLithium metal batteryAquivionАквивионлитиевая батареяshort side chainполимерный электролитorganic carbonateN,Ndimethylacetamideкороткая боковая цепьpolymer electrolytesingle-ion conductorорганический карбонатN,N-диметилацетамид
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