| Literature DB >> 27215282 |
Bing Huang1,2, Biyi Xu3, Yutao Li4, Weidong Zhou4, Ya You4, Shengwen Zhong2,4, Chang-An Wang1, John B Goodenough4.
Abstract
A solid Li-ion conductor with a high room temperature Li-ion conductivity and small interfacial resistance is required for its application in next-generation Li-ion batteries. Here, we prepared a cubic perovskite-related oxide with the general formula Li3/8Sr7/16Hf1/4Ta3/4O3 (LSHT) by a conventional solid-state reaction method, which was studied by X-ray diffraction, electrochemical impedance spectroscopy, and (7)Li MAS NMR. Li3/8Sr7/16Hf1/4Ta3/4O3 has a high Li-ion conductivity of 3.8 × 10(-4) S cm(-1) at 25 °C and a low activation energy of 0.36 eV in the temperature range 298-430 K. It exhibits both high stability and small interfacial resistance with commercial organic liquid electrolytes, which makes it promising as a separator in Li-ion batteries.Entities:
Keywords: Li-ion batteries; Li-ion conductor; interfacial resistance; perovskite; solid oxide electrolyte
Year: 2016 PMID： 27215282 DOI： 10.1021/acsami.6b03070
Source DB: PubMed Journal: ACS Appl Mater Interfaces ISSN： 1944-8244 Impact factor: 9.229