Bibliographic Citation
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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 Date | 1980 Jan 01 |
OSTI Identifier | OSTI ID: 5192575 |
Other Number(s) | CODEN: PESOD |
Resource Type | Journal Article |
Resource Relation | Proc. - Electrochem. Soc. ; Vol/Issue: 80-4 |
Research Org | EIC Corp, Newton, Mass, USA |
Subject | 250903 -- Energy Storage-- Batteries-- Materials, Components, & Auxiliaries; ;ELECTRIC BATTERIES-- ELECTROLYTES; ELECTRODES;LITHIUM |
Related Subject | ALKALI 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 Publication | United States |
Language | English |
Format | Pages: 395-406 |
System Entry Date | 2001 May 13 |
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