Basic Studies of the Lithium Secondary Electrode.
Abstract
Rechargeable high energy density Li batteries require an efficient Li electrode. Earlier work with propylene carbonate (PC), methyl acetate (MA), and tetrahydrofuran (THF)-based electrolytes yielded poor Li electrode cycling efficiencies due to the electrolyte reduction by Li. We find 2-methyltetrahydrofuran (2-Me-THF)/LiAsF6 media to be remarkably stable toward Li resulting in cycling efficiencies which approach 98%. The ability of 2-Me-THF in particular, and alpha-methylated THFs in general, to resist reduction by Li is thought to be based on the position of its lowest unfilled molecular orbital (LUMO) relative to that of THF. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1979
- Accession Number
- ADA069846
Entities
People
- Cynthia J. Mattos
- Jay L. Goldman
- Richard M. Mank
- S. Barry Brummer
- Victor R. Koch