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Title Structure-reactivity relationships of methylated tetrahydrofurans with lithium
Creator/Author Goldman, J.L. ; Mank, R.M. ; Young, J.H. ; Koch, V.R.
Publication Date1980 Jan 01
OSTI IdentifierOSTI ID: 5192575
Other Number(s)CODEN: PESOD
Resource TypeJournal Article
Resource RelationProc. - Electrochem. Soc. ; Vol/Issue: 80-4
Research OrgEIC Corp, Newton, Mass, USA
Subject250903 -- Energy Storage-- Batteries-- Materials, Components, & Auxiliaries; ;ELECTRIC BATTERIES-- ELECTROLYTES; ELECTRODES;LITHIUM
Related SubjectALKALI METALS;ELECTROCHEMICAL CELLS;ELEMENTS;METALS
Description/Abstract Tetrahydrofurans methylated in the /alpha/-position manifest remarkable chemical and electrochemical stability towards Li.^While tetrahydrofuran (THF) distilled off benzophenone ketyl and stored with Li at 71/degree/C reacts in two days, 2-methyltetrahydrofuran (2-Me-THF) treated similarly was stable for over 10 months.^Electrolytes comprising either 2-Me-THF or 2,5-dimethyltetrahydrofuran (2,5-di-Me-THF) were subjected to cycling studies in half-cell configurations.^Average Li on Li cycling efficiencies exceeded 96% for Q.1 coul/cm/sup 2/ and 90% for Q.50 coul/cm/sup 2/.^Unlike the /alpha/-methylated ethers, 3-methyltetrahydrofuran (3-Me-THF) was as reactive towards Li as THF.^Thus, the position of the methyl substituent with respect to the cyclic ether`s oxygen atom is critically important, and several mechanisms are considered.^15 refs.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 395-406
System Entry Date2001 May 13

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