Enhanced Densification and Conduction Properties of Li5+xLa3Nb2-xZrxO12 Garnet Solid-State Electrolytes Through Zn Doping on the Nb/Zr Site

While garnet Li ion conductors are attracting considerable interest as potential solid state electrolytes for Li ion batteries, a key challenge is to improve the conductivity, which is associated with the Li content in the structure, and to overcome the challenges of sintering dense electrolyte membranes. In this work we show that Zn doping on the 16a octahedral Nb site leads to substantially improved sintering in both Li5La3Nb2O12 and Li6La3ZrNbO12. As a result of the enhanced sintering, and the associated increase in Li content, the conductivities in both garnet systems were significantly enhanced on Zn doping, up to 2.1 x 10-4 Scm-1 at 25 oC for Li6.6La3ZrNb0.8Zn0.2O12. This doping strategy therefore represents a promising approach to improve the relative density and, hence, ionic conductivity of garnet solid state electrolyte materials for possible solid-state battery applications.

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Enhanced Densification and Conduction Properties of Li5+xLa3Nb2-xZrxO12 Garnet Solid-State Electrolytes Through Zn Doping on the Nb/Zr Site

10.26434/chemrxiv.12436736.v1 ◽

2020 ◽

Author(s):

Bo Dong ◽

Linhao Li ◽

Xiao Tao ◽

Mark P. Stockham ◽

Chuan Li ◽

...

Keyword(s):

Solid State ◽

Li Ion Batteries ◽

Solid State Electrolyte ◽

Zn Doping ◽

Solid State Battery ◽

Electrolyte Membranes ◽

Li Ion ◽

Solid State Electrolytes ◽

Li Content ◽

Conduction Properties

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Reducing the thickness of solid-state electrolyte membranes for high-energy lithium batteries

Energy & Environmental Science ◽

10.1039/d0ee02241a ◽

2021 ◽

Author(s):

Jingyi Wu ◽

Lixia Yuan ◽

Wuxing Zhang ◽

Zhen Li ◽

Xiaolin Xie ◽

...

Keyword(s):

Solid State ◽

Energy Density ◽

Lithium Batteries ◽

High Energy ◽

High Energy Density ◽

Solid State Electrolyte ◽

Electrolyte Membranes ◽

Solid State Batteries ◽

Solid State Electrolytes

This review summarizes the strategies to reduce the thickness of solid-state electrolytes for the fabrication of high energy-density solid-state batteries.

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(Invited) Overview on the Application of Solid State Electrolytes in Li-Ion Batteries and Beyond

ECS Meeting Abstracts ◽

10.1149/ma2016-01/28/1378 ◽

2016 ◽

Keyword(s):

Solid State ◽

Li Ion Batteries ◽

Li Ion ◽

Solid State Electrolytes

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Novel Low Temperature Molten Salt Synthesis of a Li5La3Nb2O12 Solid State Electrolyte and Its Properties

MRS Proceedings ◽

10.1557/opl.2014.931 ◽

2014 ◽

Vol 1679 ◽

Cited By ~ 1

Author(s):

Shiang Teng ◽

Wei Wang ◽

Ashutosh Tiwari

Keyword(s):

Solid State ◽

Low Temperature ◽

Molten Salt ◽

Synthesis Method ◽

Molten Salt Synthesis ◽

X Ray Diffraction ◽

Solid State Electrolyte ◽

Li Ion ◽

Quality Material ◽

Li Content

ABSTRACTThe solid state electrolyte (SSE) of Li5La3Nb2O12 (LLNO) was synthesized via a novel molten salt synthesis (MSS) method at the relatively low temperature of 900°C. The low sintering temperature prevented the loss of lithium that commonly occurs during synthesis of the SSE using conventional solid state or wet chemical reactions. Recent publications have demonstrated that preserving the Li content is critical in improving the ionic conductivity of SSEs. The LLNO in this experiment showed a high Li-ion conductivity which is comparable to other values reported for LLNO. X-ray diffraction (XRD) measurements confirmed the formation of the cubic garnet Ia-3d crystal structure. In addition, the morphology was examined by scanning electron microscopy (SEM), which showed a uniform grain size and crack-free microstructure. These results demonstrate that MSS is a powerful synthesis method to fabricate LLNO at a relatively low temperature while still achieving a high quality material.

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Seamless Integration of an Elastomer with Electrode Matrix and its In-Situ Conversion into a Solid State Electrolyte for Robust Li-Ion Batteries

Advanced Functional Materials ◽

10.1002/adfm.201301124 ◽

2013 ◽

Vol 23 (47) ◽

pp. 5941-5951 ◽

Cited By ~ 8

Author(s):

Matthew M. Ombaba ◽

Ruxandra Vidu ◽

Logeeswaran Veerayah Jayaraman ◽

Mark Triplett ◽

Jonathan Hsu ◽

...

Keyword(s):

Solid State ◽

Li Ion Batteries ◽

Seamless Integration ◽

Solid State Electrolyte ◽

Li Ion ◽

Electrode Matrix

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Synergistic Effect Of Ionic Liquid And Organo-Functional Silane On The Preparation Of Silica Based Hybrid Ionogels As Solid-State Electrolyte For Li-Ion Batteries

Ceramics International ◽

10.1016/j.ceramint.2021.05.262 ◽

2021 ◽

Author(s):

Fatoş Koç ◽

Nilay Gizli

Keyword(s):

Ionic Liquid ◽

Solid State ◽

Synergistic Effect ◽

Li Ion Batteries ◽

Solid State Electrolyte ◽

Li Ion

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In-situ electron holography charactering Li ions accumulation in the interface between electrode and solid-state-electrolyte

Journal of Materials Chemistry A ◽

10.1039/d1ta03517g ◽

2021 ◽

Author(s):

Yang Yang ◽

Jie Cui ◽

Hui-Juan Guo ◽

Xi Shen ◽

Yuan Yao ◽

...

Keyword(s):

Solid State ◽

Ion Transport ◽

Charge Distribution ◽

Transport Mechanism ◽

Electron Holography ◽

Solid State Electrolyte ◽

Solid State Batteries ◽

Li Ion ◽

Solid State Electrolytes

Intensive understanding of the Li-ion transport mechanism in solid-state-electrolytes (SSEs) is crucial for the buildup of industrially scalable solid-state batteries. Here, we report the charge distribution near the electrode/SSEs interface...

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