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Rechargeable lithium/hybrid-electrolyte/pyrite battery

TitoloRechargeable lithium/hybrid-electrolyte/pyrite battery
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2002
AutoriArdel, G., Golodnitsky D., Freedman K., Peled E., Appetecchi Giovanni Battista, Romagnoli P., and Scrosati B.
RivistaJournal of Power Sources
Volume110
Paginazione152-162
ISSN03787753
Parole chiaveDegradation, Electric discharges, Electric resistance, Electrolytes, Gels, Hybrid-electrode batteries, Lithium batteries, Polymers, Pyrites, Secondary batteries
Abstract

Different types of hybrid and gel polymer electrolytes (HPEs and GPEs) based on polymers and organic solvents combined with organic or inorganic gelation agents for Li/pyrite battery were studied. Ionic conductivity of 0.1-2.5mS/cm at room temperature (RT) was achieved for HPE and 5mS/cm for GPE. At 70°C tetraglyme (TG)-based HPE had conductivities of 1-4mS/cm, almost one order of magnitude higher than that of "dry" solid polymer electrolytes. An interfacial lithium/HPE resistance (RSEI) of 6-10Ωcm2 was stable for about 3000h. The specific capacity of the first discharge Li/pyrite cells with both HPEs and GPEs varied from 650 to 1000mAh/g. The reversible specific capacity at 70°C ranged from 250 to 600mAh/g; the maximal capacity is similar to that of solid-electrolyte Li/FeS2 batteries at 135°C. After the initial capacity loss, stable cycling behavior with 0.1% per cycle degradation rate was observed. © 2002 Elsevier Science B.V. All rights reserved.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0037143388&doi=10.1016%2fS0378-7753%2802%2900262-8&partnerID=40&md5=3ba8ec7595a64b9b40253707ea8cb151
DOI10.1016/S0378-7753(02)00262-8
Citation KeyArdel2002152