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Information × Registration Number 0214U001966, 0111U002182 , R & D reports Title Physico-chemical properties of melts of mono- and disolvate binary systems "lithium salt - aprotonic bipolar solvent popup.stage_title Head Kirillov Sviatoslav Oleksandrovich, Registration Date 15-12-2014 Organization Science and Engineering Center "Tekhnoelectrokhim" of National Academy of Sciences of Ukraine popup.description2 The object of investigation - salt-solvate electrolytes for electrochemical energy systems. The aid of the work - investigation physic-chemical and electrochemical characteristics of multi-component systems "lithium salts - aprotonic bipolar solvents" within which solvates are formed. Effect of concentration and of the salt anion nature on the conductivity, viscosity, thermal and electrochemical stability of lithium salt solutions has been investigated. Electrochemical and thermal stability of salt-solvate electrolytes have been shown to be higher than those of diluted solutions, and the temperature dependence of the salt-solvate electrolyte specific conductivity meets the Fogel-Tamman-Fulcher equation. It has been found using the Rahman-spectroscopy method that in lithium salt solutions over whole concentration diapason the solvates dominate which contain two solvent molecules per one lithium ion. It has been shown that specific capacity of iron disulfide at galvanostatic cycling in salt-solvate electrolytes based on linear ethers depends on the solvent molar mass, on the salt concentration, on the nature of its anion, and on the temperature. For electrolytes containing one of solvents selected from the raw "diglime, tetraglime or polyethylene glycol dimethyl ether, and bis(trifluoro)methansulfonimide" concentration of which corresponds to formation of the eutectic mixture, the electrode system "lithium - iron disulfide" is the most stable. Product Description popup.authors Антішко Олександр Миколайович Глоба Наталія Іванівна Горобець Маргарита Ігорівна Дєдух Олександр Олександрович Кириллов Святослав Олександрович Клунько Василь Васильович Левон Катерина Миколаївна Нікітенко Василь Миколайович Орел Володимир Павлович Потапенко Олександр Васильович Присяжний Віталій Дем'янович Пушик Олег Богданович Сірош Віталій Анатолійович Третьяков Дмитро Олегович Трифонова Тетяна Віталіївна Федюк Дмитро Володимирович Шматок Юрій Володимирович popup.nrat_date 2020-04-02 Close