Lithium passivation by polymer-containing electrolytes based on organic silicon derivatives of poly-2-methyl-5-vinylpyridinium halides

Autor:	Irina M Maksyuta, L.I. Neduzhko, Elena Shembel, O. V. Chervakov
Rok vydání:	2000
Předmět:	chemistry.chemical_classification Materials science Passivation Inorganic chemistry chemistry.chemical_element Polymer Electrolyte Alkali metal Electrochemistry chemistry.chemical_compound chemistry Propylene carbonate Lithium Separator (electricity)
Zdroj:	Russian Journal of Electrochemistry. 36:533-538
ISSN:	1608-3342 1023-1935
DOI:	10.1007/bf02757417
Popis:	Electrochemical properties of Li//Li, Li/MnO2, and Li/FeS2 systems with liquid polymer-containing electrolytes based on solutions of N-siloxane organic, N-silacrown ether derivatives of poly-2-methyl-5-vinylpyridinium halides, and LiC104 in propylene carbonate are studied by the impedance technique. The chemical nature of functional groups in side chains of the polymer, the number of ionogenic groups in its elementary unit, and the polymer synthesis history influence impedance parameters of systems. Such an influence is due to the polymer interaction with the lithium electrode. In a system with a strongly oxidative cathode, the overall resistance decreases, the capacitance increases, and components of the electrolyte presumably interact with the cathode. Products of such an interaction alter parameters of the passivating film on the lithium surface, which may act as a solid electrolyte in a battery without an additional separator.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::34f1fed0756252c6649e6485df9e8b0b https://doi.org/10.1007/bf02757417 Zobrazit plný text záznamu Full text from SpringerLink