Next generation V{sub 2}O{sub 5} cathode materials for Li rechargeable batteries McGraw, J M [Colorado School of Mines, Golden, Colorado 80401 (United States)]; Perkins, J D; Zhang, J -G; Liu, P; Parilla, P A; Turner, J; Schulz, D L; Curtis, C J; Ginley, D S [National Renewable Energy Laboratory, Golden, Colorado 80401 (United States)] 25 ENERGY STORAGE; VANADIUM OXIDES; CATHODES; ELECTRIC BATTERIES; LITHIUM IONS; THIN FILMS; TEXTURE; AMORPHOUS STATE; CHEMICAL VAPOR DEPOSITION; CAPACITY; STABILITY; STRUCTURE FACTORS We report on investigations of vanadium oxide thin film cathodes prepared by three different synthesis techniques. Our experimental results on PLD-grown, textured V{sub 2}O{sub 5} crystalline films concur with reports in the literature that there is a voltage threshold above which, cycling appears to be completely reversible and below which, cycling appears to be irreversible. Crystalline films discharged beyond the threshold to 2.0 V exhibited an immediate and continuous fade in capacity as well as a nearly 90% decrease in XRD peak intensity and a similar decrease in Raman signal intensity in as few as ten cycles. PLD-grown amorphous films show capacity loss of <2% over 200 cycles. Amorphous plasma-enhanced chemical vapor deposition (PECVD) films have capacities as high as 1.5 Li/V with excellent stability over 3000 cycles. Solution-grown nanoparticles (<100 nm) of VO{sub 2} were spray-deposited and sintered at relatively low temperatures to produce nanoporous films. Cycling properties along with structural investigations by XRD and Raman scattering will be presented Netherlands 1998-12-01 English Journal Article Journal Name: Solid State Ionics; Journal Volume: 113-115; Journal Issue: 1-4; Other Information: PBD: 1 Dec 1998 Medium: X; Size: pp. 407-413 https://doi.org/10.1016/S0167-2738(98)00383-X [] 1-4 113-115 Journal ID: SSIOD3; ISSN 0167-2738; TRN: NL99E0410 ECN; SCA: 250903; PA: ECN-99:0E0410; EDB-99:014399; SN: 99002054618 2010-12-29 302630