Improved ionic conductivity in NASICON-type Sr2+ doped LiZr2(PO4)3

被引：62
作者：
Kumar, Sunil [1 ]
Balaya, Palani [1 ]
机构：
[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117575, Singapore
来源：
SOLID STATE IONICS | 2016年 / 296卷
关键词：
Solid electrolyte; NASICON; Impedance spectroscopy; Transference number; Structure stabilization; Microstructure; NEUTRON-DIFFRACTION; ROOM-TEMPERATURE; LITHIUM; CONDUCTORS; LI+; MOBILITY; BATTERY;
D O I：
10.1016/j.ssi.2016.08.012
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Lithium ion conducting ceramics Li-1 (+) Zr-2x(2) (-) Sr-x(x)(PO4)(3) with x = 0-0.2 were synthesized via a sot-gel method using citric acid. The effects of Se2+ substitution on the structure, microstructure, and conductivity of LiZr2(PO4)(3) ceramics were studied. Rietveld refinement of powder XRD patterns showed that 5% of Sr2+ substitution for Zr4+ in LiZr2(PO4)(3) stabilizes the rhombohedral (space group R (3) over barc) phase at room temperature. Sr2+ doped LiZr2(PO4)(3) samples exhibited significantly improved ionic conductivity with Li1.2Zr1.9Sr0.1 (PO4)(3) showing highest conductivity of 0.34 x 10(-4) Omega(-1) cm(-1) at room temperature. Activation energy was found to decrease from 0.56 eV for LiZr2(PO4)(3) to 0.40 eV for Li1.4Zr1.8Sr0.2(PO4)(3). Li+ transference number determined by DC polarization for Li1.2Zr1.9Sr0.1(PO4)(3) was close to 1 confirming the ionic nature of conductivity. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：1 / 6
页数：6
相关论文
共 50 条
  • [1] NASICON-type La3+ substituted LiZr2(PO4)3 with improved ionic conductivity as solid electrolyte
    Ramar, Vishwanathan
    Kumar, Sunil
    Sivakkumar, S. R.
    Balaya, Palani
    ELECTROCHIMICA ACTA, 2018, 271 : 120 - 126
  • [2] NASICON-type Ta5+ substituted LiZr2(PO4)3 with improved ionic conductivity as a prospective solid electrolyte
    Pu, Xingrui
    Cheng, Xing
    Yan, Qiaohong
    Lin, Yueming
    Yan, Rentai
    Yang, Ruize
    Zhu, Xiaohong
    CERAMICS INTERNATIONAL, 2024, 50 (06) : 9007 - 9015
  • [3] Polymorphism control of fast-sintered NASICON-type LiZr2(PO4)3
    Lin, Lin
    Hatzell, Kelsey B.
    JOURNAL OF MATERIALS CHEMISTRY A, 2024, 12 (43) : 29932 - 29940
  • [4] Room temperature triclinic modification of NASICON-type LiZr2(PO4)3
    Iglesias, JE
    Pecharroman, C
    SOLID STATE IONICS, 1998, 112 (3-4) : 309 - 318
  • [5] PREPARATION, STRUCTURAL CHARACTERIZATION AND IONIC CONDUCTIVITY STUDIES OF CALCIUM DOPED LiZr2(PO4)3
    Prabu, M.
    Reddy, M. V.
    Selvasekarapandian, S.
    Rao, G. V. Subba
    Chowdari, B. V. R.
    Solid State Ionics: Ionics for Sustainable World, 2013, : 442 - 449
  • [6] A systematic study of annealing environment and Al dopant effect on NASICON-type LiZr2(PO4)3 solid electrolyte
    Reddy, I. Neelakanta
    Akkinepally, Bhargav
    Reddy, Ch Venkata
    Sreedhar, Adem
    Ko, Tae Jo
    Shim, Jaesool
    IONICS, 2020, 26 (09) : 4287 - 4298
  • [7] Y-Doped NASICON-type LiZr2(PO4)3 Solid Electrolytes for Lithium Metal Batteries
    Xu, Henghui
    Wang, Shaofei
    Wilson, Hope
    Zhao, Feng
    Manthiram, Arumugam
    CHEMISTRY OF MATERIALS, 2017, 29 (17) : 7206 - 7212
  • [8] Li-ion transport studies of NASICON-type LiZr2(PO4)3 solid electrolyte crystallizing in rhombohedral structure at room temperature
    Khatua, Sumit
    Rao, Y. Bhaskara
    Achary, K. Ramakrushna
    Patro, L. N.
    SURFACES AND INTERFACES, 2023, 41
  • [9] Effect of lithium isotopes on the phase transition in NASICON-type lithium-ion conductor LiZr2(PO4)3
    Inaguma, Yoshiyuki
    Funayama, Koki
    Aimi, Akihisa
    Mori, Daisuke
    Hamasaki, Yosuke
    Ueda, Koichiro
    Ikeda, Minoru
    Ohno, Takahisa
    Mitsuishi, Kazutaka
    SOLID STATE IONICS, 2018, 321 : 29 - 33
  • [10] A systematic study of annealing environment and Al dopant effect on NASICON-type LiZr2(PO4)3 solid electrolyte
    I. Neelakanta Reddy
    Bhargav Akkinepally
    Ch. Venkata Reddy
    Adem Sreedhar
    Tae Jo Ko
    Jaesool Shim
    Ionics, 2020, 26 : 4287 - 4298
12345