Cited 5 time in webofscience Cited 6 time in scopus

Double-Sheet Vanadium Oxide as a Cathode Material for Calcium-Ion Batteries

Title
Double-Sheet Vanadium Oxide as a Cathode Material for Calcium-Ion Batteries
Authors
Chae, Munseok S.Heo, Jongwook W.Hyoung, JooeunHong, Seung-Tae
DGIST Authors
Chae, Munseok S.; Heo, Jongwook W.; Hyoung, Jooeun; Hong, Seung-Tae
Issue Date
2020-07
Citation
ChemNanoMat, 6(7), 1049-1053
Type
Article
Article Type
Article
Author Keywords
multivalent-ion batterycalcium-ion batterycalcium intercalationbi-layered vanadium oxidedouble-sheet vanadium oxide
Keywords
PSEUDOCAPACITIVE CONTRIBUTIONSINTERCALATIONELECTRODESSTORAGEXPS
ISSN
2199-692X
Abstract
Calcium-ion batteries (CIBs) are theoretically considered one of the potential post-lithium-ion battery technologies. However, only a few host materials are known to intercalate Ca ions. Herein, we demonstrate the use of double-sheet vanadium oxide V2O5 ⋅ 0.63H2O as a high-performance cathode material for CIBs. The vanadium oxide was synthesized via an electrochemical oxidation process on a graphite foil substrate. The material exhibited a high reversible capacity of 204 mAh g−1 at a 0.1 C rate in an aqueous electrolyte, with an average discharge voltage of 2.76 V vs. Ca/Ca2+, and a capacity retention of 86% after 350 cycles. The reaction mechanism can be described as a combination of diffusion-controlled intercalation and surface-limited pseudo-capacitance reactions. This study provides a new type of Ca host material, motivating further development of new CIB cathode materials. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
http://hdl.handle.net/20.500.11750/12049
DOI
10.1002/cnma.202000011
Publisher
Wiley-VCH Verlag
Related Researcher
  • Author Hong, Seung-Tae Battery Materials Discovery Laboratory
  • Research Interests Magnesium, calcium, and zinc ion batteries; lithium all-solid-state batteries, New inorganic materials discovery; Solid state chemistry; Crystallography; Mg, Ca, Zn 이온 이차전지; 리튬 전고체전지; 신 무기재료 합성; 고체화학; 결정화학
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringBattery Materials Discovery Laboratory1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE