Cited time in webofscience Cited time in scopus

Synthesis, structure, and electrochemical Li-ion intercalation of LiRu2O4 with CaFe2O4-type structure

Synthesis, structure, and electrochemical Li-ion intercalation of LiRu2O4 with CaFe2O4-type structure
Jung, Young HwaKim, Do KyungHong, Seung-Tae
DGIST Authors
Hong, Seung-Tae
Issued Date
Article Type
A new material, LiRu2O4, has been synthesized by ion-exchange reaction from NaRu2O4 that has been prepared by solid state reaction at 950 °C under Ar flow. The crystal structure of LiRu2O4, isostructural with the parent NaRu 2O4, has been refined by an X-ray Rietveld method (Pnma, a = 9.13940(5) b = 2.80070(9) c = 11.0017(1) Z = 4, Rp = 5.30%, wRp = 6.73%, χ2 = 0.41, 23 °C). The structure belongs to CaFe2O4-type, where double chains of edge-sharing octahedral RuO6 share the corners with neighboring double chains and form tunnels in between them parallel to the shortest b-axis so that the one-dimensional Li array is placed inside each of the tunnels. Detailed structural analysis indicates that the tunnel inside has more than enough space to be filled with the Li atoms. The electrochemical tests of LiRu2O4 demonstrates a reversible Li intercalation reaction at 3.2-3.5 V vs. Li/Li+ with a capacity of ∼80 mAhg -1. The material exhibits excellent high-rate characteristics (93% capacity retention at 10C/1C) as well as high capacity retention with cycles (99% at 50 cycles). © 2013 Elsevier B.V. All rights reserved.
Elsevier B.V.
Related Researcher
  • 홍승태 Hong, Seung-Tae 에너지공학과
  • Research Interests Magnesium; calcium; and zinc ion batteries; lithium all-solid-state batteries; Inorganic materials discovery; Solid state chemistry; Crystallography; Mg; Ca; Zn 이온 이차전지; 리튬 전고체전지; 신 무기재료 합성; 고체화학; 결정화학
Files in This Item:

There are no files associated with this item.

Appears in Collections:
Department of Energy Science and Engineering Battery Materials Discovery Laboratory 1. Journal Articles


  • twitter
  • facebook
  • mendeley

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