High lithium ion conductivity of Li7La3Zr2O12 synthesized by solid state reaction

被引：34

作者：

Lee, Jae-Myung ^{[1
]}

Kim, Taeyoung ^{[1
]}

Baek, Seung-Wook ^{[1
]}

Aihara, Yuichi ^{[2
]}

Park, Youngsin ^{[1
]}

Kim, Yong-Il ^{[3
]}

Doo, Seok-Gwang ^{[1
]}

机构：

[1] Samsung Elect Co LTD, Samsung Adv Inst Technol, Samsung Ro 443803, Gyeonggi Do, South Korea

[2] Samsung Yokohama Res Inst, Osaka 5620036, Japan

[3] Korea Res Inst Stand & Sci, Taejon, South Korea

来源：

SOLID STATE IONICS | 2014年 / 258卷

关键词：

Lithium ion conductor; Garnet; Solid electrolyte; Magic angle spinning nuclear magnetic resonance; Rietveld refinement; Neutron powder diffraction; ELECTRODE MATERIALS; TRANSPORT-PROPERTIES; GARNETS; CONDUCTORS; AL; TEMPERATURE; TRANSITION; CONVERSION; BATTERIES; DISORDER;

D O I：

10.1016/j.ssi.2014.01.043

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：

A lithium ion conductor with the garnet-type structure, Li7La3Zr2O12 (LLZ), showing a high Li+ conductivity of 0.49 mS cm(-1) at 25 C, is synthesized via milling (500 rpm, 12 h) and following sintering at 1125 C for 20 h. The improved Li+ conductivity is attributed to the decrease of the particle size, the uniform distribution of particles before sintering, the high concentration of Li+ in the octahedral site (96h), and low occupancies of Li+ in the tetrahedral site (24d). Also, it is found that the cubic phase of LLZ is stabilized by a contamination of Al3+ ion into the LLZ lattice. The structural position of Al3+ is verified to be in the tetrahedral site (24d) by analyzing SEM images, MAS NMR, Pawley refinement using X-ray powder diffraction, and structural refinement using neutron powder diffraction data. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：13 / 17

页数：5

共 38 条

[1] Ion transport and phase transition in Li7-xLa3(Zr2-xMx)O12 (M = Ta5+, Nb5+, x=0, 0.25) [J].

Adams, Stefan ;

Rao, Rayavarapu Prasada .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (04) :1426-1434

[2] Effect of substitution (Ta, Al, Ga) on the conductivity of Li7La3Zr2O12 [J].

Allen, J. L. ;

Wolfenstine, J. ;

Rangasamy, E. ;

Sakamoto, J. .

JOURNAL OF POWER SOURCES, 2012, 206 :315-319

[3] Nanostructured materials for advanced energy conversion and storage devices [J].

Aricò, AS ;

Bruce, P ;

Scrosati, B ;

Tarascon, JM ;

Van Schalkwijk, W .

NATURE MATERIALS, 2005, 4 (05) :366-377

[4] Synthesis and crystallographic studies of garnet-related lithium-ion conductors Li6CaLa2Ta2O12 and Li6BaLa2Ta2O12 [J].

Awaka, Junji ;

Kijima, Norihito ;

Takahashi, Yasuhiko ;

Hayakawa, Hiroshi ;

Akimoto, Junji .

SOLID STATE IONICS, 2009, 180 (6-8) :602-606

[5] Structure and dynamics of the fast lithium ion conductor "Li7La3Zr2O12" [J].

Buschmann, Henrik ;

Doelle, Janis ;

Berendts, Stefan ;

Kuhn, Alexander ;

Bottke, Patrick ;

Wilkening, Martin ;

Heitjans, Paul ;

Senyshyn, Anatoliy ;

Ehrenberg, Helmut ;

Lotnyk, Andriy ;

Duppel, Viola ;

Kienle, Lorenz ;

Janek, Juergen .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (43) :19378-19392

[6] Beyond Intercalation-Based Li-Ion Batteries: The State of the Art and Challenges of Electrode Materials Reacting Through Conversion Reactions [J].

Cabana, Jordi ;

Monconduit, Laure ;

Larcher, Dominique ;

Rosa Palacin, M. .

ADVANCED MATERIALS, 2010, 22 (35) :E170-E192

[7] The structure of lithium garnets:: cation disorder and clustering in a new family of fast Li+ conductors [J].

Cussen, EJ .

CHEMICAL COMMUNICATIONS, 2006, (04) :412-413

[8] Ceramic and polymeric solid electrolytes for lithium-ion batteries [J].

Fergus, Jeffrey W. .

JOURNAL OF POWER SOURCES, 2010, 195 (15) :4554-4569

[9]

Garman R.M., 1996, SINTERING THEORY PRA, P144

[10] Crystal Chemistry and Stability of "Li7La3Zr2O12" Garnet: A Fast Lithium-Ion Conductor [J].

Geiger, Charles A. ;

Alekseev, Evgeny ;

Lazic, Biljana ;

Fisch, Martin ;

Armbruster, Thomas ;

Langner, Ramona ;

Fechtelkord, Michael ;

Kim, Namjun ;

Pettke, Thomas ;

Weppner, Werner .

INORGANIC CHEMISTRY, 2011, 50 (03) :1089-1097

← 1 2 3 4 →