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V2O5-P2O5-Fe2O3-Li2O Glass-Ceramics as High-Capacity Cathode for Lithium-Ion Batteries
Published online by Cambridge University Press: 25 February 2014
Abstract
We discuss the advantages of V2O5-P2O5-Fe2O3-Li2O glass-ceramics as a cathode for lithium-ion batteries. The glass was prepared by using the melt quenching method. The glass-ceramics were produced by heat treatment in air. LixV2O5 crystal was only confirmed as the precipitated phase and the degree of crystallinity was approximately 90%. The total capacity of the glass-ceramics was 340 Ah/kg at a C/20 rate for 1.5-4.2 V cutoff ranges. It is 10% higher than the capacity of the glass cathode. Moreover, the charge-discharge performance of the glass-ceramics cathode showed good cycleability similar to that of the glass. The glass-ceramics had a 83% capacity retention after 40 cycles. These results show that glass-ceramics is a potential candidate for lithium-ion cathode materials.
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- Articles
- Information
- MRS Online Proceedings Library (OPL) , Volume 1643: Symposium CC – Advanced Materials for Rechargeable Batteries , 2014 , mrsf13-1643-cc06-28
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- Copyright © Materials Research Society 2014
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