Effect of Zr4+ on Lithium-Ion Conductivity of Garnet-Type Li5+xLa3(Nb2-xZrx)O12 Solid Electrolytes

被引：5

作者：

Reis, Shirley ^{[1
]}

Grosso, Robson ^{[1
]}

Kosctiuk, Juliane ^{[1
]}

Franchetti, Marianne ^{[1
]}

Oliveira, Francisca ^{[1
]}

Souza, Adler ^{[1
]}

Gonin, Cyrille ^{[1
]}

Freitas, Heverson ^{[1
]}

Monteiro, Robson ^{[2
]}

Parreira, Luanna ^{[2
]}

Berton, Marcos ^{[1
]}

机构：

[1] SENAI Inst Innovat Electrochem, BR-80215090 Curitiba, PR, Brazil

[2] Co Brasileira Met & Min CBMM, BR-38183903 Araxa, MG, Brazil

来源：

BATTERIES-BASEL | 2023年 / 9卷 / 02期

关键词：

garnet-type oxides; solid electrolytes; spark plasma sintering; ceramics; lithium-ion conductivity; BATTERIES; SUBSTITUTION; NB;

D O I：

10.3390/batteries9020137

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Garnet-type structured electrolytes are considered a key technology for the next generation of lithium-ion batteries such as all-solid-state batteries. Cubic Garnet-type solid oxides with composition Li5+xLa3(Nb2-xZrx)O-12 (x between 0 and 1.5) were synthesized by solid-state reaction and sintered by spark plasma sintering. Powder characterization indicates the formation of solid solution with high chemical homogeneity and spherical particles. High relative densities (>96%) were obtained by spark plasma sintering at 950 degrees C for 10 min and pressure application of 50 MPa. Although the formation of secondary phase La2Zr2O7 was identified by the X-ray diffraction patterns of Zr-doped pellets, it has been eliminated for x = 0.75 and 1 by conventional heat treatment at 850 degrees C for 1 h. High ionic conductivity values were attained for x >= 0.75, reaching a maximum value in the order of 10(-4) S.cm(-1) at 25 degrees C with activation energy of 0.38 eV. The results indicated that Zr4+ promoted significant increasing of the lithium-ion conductivity by lowering the activation energy.

引用

页数：12

共 39 条

[21] Dielectric characteristics of fast Li ion conducting garnet-type Li5+2xLa3Nb2-xYxO12 (x=0.25, 0.5 and 0.75) [J].

Narayanan, Sumaletha ;

Baral, Ashok Kumar ;

Thangadurai, Venkataraman .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2016, 18 (22) :15418-15426

[22] Relationship between lithium content and ionic conductivity in the Li5 +2xLa3Nb2 - xScxO12 system [J].

Nemori, H. ;

Matsuda, Y. ;

Matsui, M. ;

Yamamoto, O. ;

Takeda, Y. ;

Imanishi, N. .

SOLID STATE IONICS, 2014, 266 :9-12

[23] High lithium ionic conductivity in the garnet-type oxide Li7-X La3(Zr2-X, NbX)O12 (X=0-2) [J].

Ohta, Shingo ;

Kobayashi, Tetsuro ;

Asaoka, Takahiko .

JOURNAL OF POWER SOURCES, 2011, 196 (06) :3342-3345

[24] Discovering the Influence of Lithium Loss on Garnet Li7La3Zr2O12 Electrolyte Phase Stability [J].

Paolella, Andrea ;

Zhu, Wen ;

Bertoni, Giovanni ;

Savoie, Sylvio ;

Feng, Zimin ;

Demers, Hendrix ;

Gariepy, Vincent ;

Girard, Gabriel ;

Rivard, Etienne ;

Delaporte, Nicolas ;

Guerfi, Abdelbast ;

Lorrmann, Henning ;

George, Chandramohan ;

Zaghib, Karim .

ACS APPLIED ENERGY MATERIALS, 2020, 3 (04) :3415-3424

[25] Effect of Ge substitution for Nb on Li ion conductivity of Li5La3Nb2O12 solid state electrolyte [J].

Peng, Hongjian ;

Feng, Liuliu ;

Li, Ling ;

Zhang, Yunqiang ;

Zou, Yingping .

ELECTROCHIMICA ACTA, 2017, 251 :482-487

[26] Synthesis of Li5+x La3HfxNb2-xO12 (x=0.2-1) ceramics with cubic garnet-type structure [J].

Peng, Hongjian ;

Feng, Liuliu ;

Li, Ling ;

Zhang, Yunqiang ;

Zou, Yingping .

MATERIALS LETTERS, 2017, 194 :138-141

[27] Low temperature synthesis of Li5La3Nb2O12 with cubic garnet-type structure by sol-gel process [J].

Peng, Hongjian ;

Wu, Qing ;

Xiao, Lihong .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2013, 66 (01) :175-179

[28] Synthesis, Structure and Li Ion Conductivity of Garnet-like Li5+2xLa3Nb2-xSmxO12 (0 ≤ x ≤ 0.7) [J].

Pinzaru, Dana ;

Thangadurai, Venkataraman .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2014, 161 (14) :A2060-A2067

[29] Lithium garnets: Synthesis, structure, Li+ conductivity, Li+ dynamics and applications [J].

Ramakumar, S. ;

Deviannapoorani, C. ;

Dhivya, L. ;

Shankar, Lakshmi S. ;

Murugan, Ramaswamy .

PROGRESS IN MATERIALS SCIENCE, 2017, 88 :325-411

[30] REVISED EFFECTIVE IONIC-RADII AND SYSTEMATIC STUDIES OF INTERATOMIC DISTANCES IN HALIDES AND CHALCOGENIDES [J].

SHANNON, RD .

ACTA CRYSTALLOGRAPHICA SECTION A, 1976, 32 (SEP1) :751-767

← 1 2 3 4 →