Interrelationships among Grain Size, Surface Composition, Air Stability, and Interfacial Resistance of Al-Substituted Li7La3Zr2O12 Solid Electrolytes

2015 ◽  
Vol 7 (32) ◽  
pp. 17649-17655 ◽  
Author(s):  
Lei Cheng ◽  
Cheng Hao Wu ◽  
Angelique Jarry ◽  
Wei Chen ◽  
Yifan Ye ◽  
...  
2014 ◽  
Vol 16 (34) ◽  
pp. 18294-18300 ◽  
Author(s):  
Lei Cheng ◽  
Ethan J. Crumlin ◽  
Wei Chen ◽  
Ruimin Qiao ◽  
Huaming Hou ◽  
...  

High interfacial resistance in Li7La3Zr2O12(LLZO)/Li cells is correlated with the presence of Li2CO3on LLZO surfaces.


2019 ◽  
Vol 45 (1) ◽  
pp. 622-626 ◽  
Author(s):  
Haibin Sun ◽  
Xue Guo ◽  
Jiao Li ◽  
Guochang Li ◽  
Zanzhong Yang ◽  
...  

Author(s):  
Wei Liu ◽  
Ryan Milcarek ◽  
Kang Wang ◽  
Jeongmin Ahn

In this study, a multi-layer structure solid electrolyte (SE) for all-solid-state electrolyte lithium ion batteries (ASSLIBs) was fabricated and characterized. The SE was fabricated by laminating ceramic electrolyte Li1.3Al0.3Ti1.7(PO4)3 (LATP) with polymer (PEO)10-Li(N(CF3SO2)2 electrolyte and gel-polymer electrolyte of PVdF-HFP/ Li(N(CF3SO2)2. It is shown that the interfacial resistance is generated by poor contact at the interface of the solid electrolytes. The lamination protocol, material selection and fabrication method play a key role in the fabrication process of practical multi-layer SEs.


2008 ◽  
Vol 59 (9) ◽  
pp. 1292-1300 ◽  
Author(s):  
Marcin Pisarek ◽  
Piotr Kędzierzawski ◽  
Tomasz Płociński ◽  
Maria Janik-Czachor ◽  
Krzysztof J. Kurzydłowski

2021 ◽  
Vol 50 (39) ◽  
pp. 13786-13800
Author(s):  
M. P. Stockham ◽  
B. Dong ◽  
M. S. James ◽  
Y. Li ◽  
Y. Ding ◽  
...  

Lithium garnets are promising solid electrolytes; however, they suffer from intrinsically high interfacial resistance. In this work we exploit Ga dopant instability to form Li/Ga eutectic mixtures that give very low resistance at the Li interface.


2020 ◽  
Vol 8 (35) ◽  
pp. 18087-18093
Author(s):  
Bin Tang ◽  
Longxue Gao ◽  
Junqing Liu ◽  
Shou-Hang Bo ◽  
Zhaojun Xie ◽  
...  

We sputter amorphous SnO2 layer onto the surface of solid electrolytes via atomic layer deposition, which reduces interfacial resistance, prevents interface reactions with metallic lithium and provides high stability for long cycling.


Author(s):  
K. P. Staudhammer ◽  
L. E. Murr

The effect of shock loading on a variety of steels has been reviewed recently by Leslie. It is generally observed that significant changes in microstructure and microhardness are produced by explosive shock deformation. While the effect of shock loading on austenitic, ferritic, martensitic, and pearlitic structures has been investigated, there have been no systematic studies of the shock-loading of microduplex structures.In the current investigation, the shock-loading response of millrolled and heat-treated Uniloy 326 (thickness 60 mil) having a residual grain size of 1 to 2μ before shock loading was studied. Uniloy 326 is a two phase (microduplex) alloy consisting of 30% austenite (γ) in a ferrite (α) matrix; with the composition.3% Ti, 1% Mn, .6% Si,.05% C, 6% Ni, 26% Cr, balance Fe.


Author(s):  
R. Sinclair ◽  
B.E. Jacobson

INTRODUCTIONThe prospect of performing chemical analysis of thin specimens at any desired level of resolution is particularly appealing to the materials scientist. Commercial TEM-based systems are now available which virtually provide this capability. The purpose of this contribution is to illustrate its application to problems which would have been intractable until recently, pointing out some current limitations.X-RAY ANALYSISIn an attempt to fabricate superconducting materials with high critical currents and temperature, thin Nb3Sn films have been prepared by electron beam vapor deposition [1]. Fine-grain size material is desirable which may be achieved by codeposition with small amounts of Al2O3 . Figure 1 shows the STEM microstructure, with large (∽ 200 Å dia) voids present at the grain boundaries. Higher quality TEM micrographs (e.g. fig. 2) reveal the presence of small voids within the grains which are absent in pure Nb3Sn prepared under identical conditions. The X-ray spectrum from large (∽ lμ dia) or small (∽100 Ǻ dia) areas within the grains indicates only small amounts of A1 (fig.3).


Author(s):  
M.P. Thomas ◽  
A.R. Waugh ◽  
M.J. Southon ◽  
Brian Ralph

It is well known that ion-induced sputtering from numerous multicomponent targets results in marked changes in surface composition (1). Preferential removal of one component results in surface enrichment in the less easily removed species. In this investigation, a time-of-flight atom-probe field-ion microscope A.P. together with X-ray photoelectron spectroscopy XPS have been used to monitor alterations in surface composition of Ni3Al single crystals under argon ion bombardment. The A.P. has been chosen for this investigation because of its ability using field evaporation to depth profile through a sputtered surface without the need for further ion sputtering. Incident ion energy and ion dose have been selected to reflect conditions widely used in surface analytical techniques for cleaning and depth-profiling of samples, typically 3keV and 1018 - 1020 ion m-2.


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