Preparation of polymer electrolytes based on polyurethane elastomer by the swelling method

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Abstract

The search for solvents to prepare polymer electrolytes based on polyurethane elastomer by swelling method was carried out. The greatest swelling was observed in N-methyl-2-pyrrolidone, and the maximum degree of swelling was reached in 24 hours at 25°C. The swelling effect decreased with increasing the salt concentration. The ionic conductivity of the polymer electrolytes reached the maximum of 6–8·10-4 S/cm at 5 wt% of lithium salt. Using the method of galvanostatic cycling it was shown that the electrolyte was reversible by lithium ions and electrochemically stable in the voltage range up to 4.8 V

About the authors

Nikita Alexandrovich Fedorov

Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS

ORCID iD: 0009-0000-9192-2075
18, Kutateladze St., Novosibirsk, 630128

Nikolai F. Uvarov

Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS

ORCID iD: 0000-0002-8209-7533
SPIN-code: 8137-4513
18, Kutateladze St., Novosibirsk, 630128

Artem S. Ulihin

Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS

ORCID iD: 0000-0002-6795-0006
SPIN-code: 2810-7309
Scopus Author ID: 15046088200
ResearcherId: P-1187-2017
18, Kutateladze St., Novosibirsk, 630128

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