BROWSE

Related Scientist

Researcher

나노입자 연구단
나노입자 연구단
more info

Redesign of Li2MP2O7 (M = Fe or Mn) by Tuning the Li Diffusion in Rechargeable Battery Electrodes

Cited 7 time in webofscience Cited 0 time in scopus
136 Viewed 14 Downloaded
Title
Redesign of Li2MP2O7 (M = Fe or Mn) by Tuning the Li Diffusion in Rechargeable Battery Electrodes
Author(s)
Kim, J; Lee, B; Kim, H; Kim, H; Kisuk Kang
Publication Date
2016-10
Journal
CHEMISTRY OF MATERIALS, v.28, no.19, pp.6894 - 6899
Publisher
AMER CHEMICAL SOC
Abstract
Defects in crystals such as antisites generally lead-to the deterioration of the ionic conductivity of solid-state ionic conductors. Herein, using first principles calculations, we demonstrate that the Li diffusion in Li2MP2O7 (M = Fe or Mn), a promising battery material, is sensitively affected by the presence of Li/M antisites; however, unexpectedly, the antisites significantly promote Li diffusion. The calculations reveal that the presence of antisites reduces the barrier of Li hopping and opens new paths for Li diffusion in the Li2MP2O7 crystal. In our experimental verification, we succeeded in synthesizing crystalline Li2MnP2O7 with varying Li/Mn antisite contents and demonstrated that the inclusion of antisites results in improved power capability with faster Li diffusion for Li-ion battery electrodes. We believe that this unexpected finding of increasing the ionic conductivity by introducing antisite defects broadens our understanding of solid-state ionic conductors and provides a new strategy for improving Li diffusion in conventional electrode materials for Li rechargeable batteries. © 2016 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/3109
ISSN
0897-4756
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
Redesign of Li2MP2O7_(M_=_Fe or Mn) by Tuning the Li_Diffusion in Rechargeable_Battery_Electrodes.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

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

Browse