Quantification of Efficiency in Lithium Metal Negative Electrodes via Operando X-ray Diffraction

2021 ◽  
Vol 33 (18) ◽  
pp. 7537-7545 ◽  
Author(s):  
Natalie R. Geise ◽  
Robert M. Kasse ◽  
Johanna Nelson Weker ◽  
Hans-Georg Steinrück ◽  
Michael F. Toney
Keyword(s):  
Lithium Metal ◽  
X Ray Diffraction ◽  
X Ray ◽  
Negative Electrodes

Investigation of the reaction mechanism of lithium sulfur batteries in different electrolyte systems by in situ Raman spectroscopy and in situ X-ray diffraction

2017 ◽  
Vol 1 (4) ◽  
pp. 737-747 ◽  
Author(s):  
W. Zhu ◽  
A. Paolella ◽  
C.-S. Kim ◽  
D. Liu ◽  
Z. Feng ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Lithium Metal ◽  
X Ray Diffraction ◽  
In Situ Raman Spectroscopy ◽  
X Ray ◽  
In Situ Raman ◽  
Lithium Sulfur Batteries ◽  
Sulfur Battery ◽  
Lithium Sulfur

In liithium–sulfur battery the lithium metal surface was analyzed by in situ Raman spectroscopy.

In operando X-ray diffraction of lithium–oxygen batteries using an ionic liquid as an electrolyte co-solvent

2017 ◽  
Vol 41 (15) ◽  
pp. 7267-7272 ◽  
Author(s):  
E. Knipping ◽  
C. Aucher ◽  
G. Guirado ◽  
F. Fauth ◽  
L. Aubouy
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Lithium Metal ◽  
X Ray Diffraction ◽  
X Ray ◽  
Chemical Instability ◽  
In Operando ◽  
Lithium Oxygen Batteries

Chemical instability of ionic liquids in the presence of lithium metal leading to spontaneous LiOH formation.

A 3D free-standing lithiophilic silver nanowire aerogel for lithium metal batteries without lithium dendrites and volume expansion: in operando X-ray diffraction

2019 ◽  
Vol 55 (40) ◽  
pp. 5689-5692 ◽  
Author(s):  
Nutthaphon Phattharasupakun ◽  
Juthaporn Wutthiprom ◽  
Salatan Duangdangchote ◽  
Montree Sawangphruk
Keyword(s):  
Dendritic Growth ◽  
Silver Nanowire ◽  
Lithium Metal ◽  
X Ray Diffraction ◽  
Free Standing ◽  
X Ray ◽  
Lithium Metal Batteries ◽  
Initial Nucleation ◽  
Lithium Dendrites ◽  
In Operando

A 3D free-standing lithiophilic silver nanowire aerogel (AgNWA) can stop the dendritic growth of lithium metal at the initial nucleation process.

scholarly journals Effect Of Hot Pressing On The Electrochemical Properties Of Ti-Ni Alloy

2015 ◽  
Vol 60 (2) ◽  
pp. 1335-1340
Author(s):  
M. Balcerzak ◽  
M. Jurczyk
Keyword(s):  
Electrochemical Properties ◽  
Hot Pressing ◽  
Fracture Morphology ◽  
X Ray Diffraction ◽  
Huge Number ◽  
X Ray ◽  
Starting Mixture ◽  
Ni Alloy ◽  
Negative Electrodes ◽  
Degree Of Oxidation

Abstract Ti2Ni alloy pellets were produced by mechanical alloying and hot pressing at 750°C for 0.5 h in vacuum. X-ray diffraction analysis showed that, after 8 h of milling, a starting mixture of elements mostly decomposed into an amorphous phase. Obtained powders and flakes have cleavage fracture morphology with huge number of dimples with different sizes. Hot pressing of materials caused formation of Ti2Ni main phase. Porosity of pellets strongly depended on size of agglomerates and pressure of pressing. Ti2Ni pellets were used as negative electrodes for Ni-MHx batteries. Maximum measured discharge capacity of studied materials was 220 mAh/g. Electrochemical properties resulted from size of agglomerates, degree of oxidation and pressure of pressing.

scholarly journals Microanalysis of the Substances in Positive and Negative Electrodes of a LiMn2O4 Battery for Road Vehicles under Over-charge and Over-discharge

2021 ◽  
Vol 299 ◽  
pp. 03004
Author(s):  
Hongwei Wang ◽  
Jun Liu ◽  
Zhengjian Gu ◽  
Haiqing Xiao ◽  
Yusong Zhu ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Lithium Batteries ◽  
Lithium Battery ◽  
X Ray Diffraction ◽  
Road Vehicles ◽  
X Ray ◽  
Potential Safety ◽  
Negative Electrodes ◽  
Object Of Study ◽  
Scanning Electron

With an 11Ah LiMn2O4 battery as the object of study, through disassembling the battery after normal charge and normal discharge as well as over-charge and over-discharge, and using such methods as x-ray diffraction and scanning electron microscope, this study explores the micro-changes that happened to the material for the anode and cathode of this lithium battery after over-charge and over-discharge, and provides the measures to prevent batteries from charge and discharge, so as to avoid potential safety problems during the use of lithium batteries.

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

Ribosome Structural Organization

1974 ◽  
Vol 32 ◽  
pp. 332-333
Author(s):  
James A. Lake
Keyword(s):  
Ribosomal Proteins ◽  
Structural Organization ◽  
Three Dimensional ◽  
Small Subunit ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
Specific Antibodies ◽  
X Ray ◽  
E Coli ◽  
Complete Sequences

The understanding of ribosome structure has advanced considerably in the last several years. Biochemists have characterized the constituent proteins and rRNA's of ribosomes. Complete sequences have been determined for some ribosomal proteins and specific antibodies have been prepared against all E. coli small subunit proteins. In addition, a number of naturally occuring systems of three dimensional ribosome crystals which are suitable for structural studies have been observed in eukaryotes. Although the crystals are, in general, too small for X-ray diffraction, their size is ideal for electron microscopy.

Electron Microscopy of Human Gallstones

1971 ◽  
Vol 29 ◽  
pp. 296-297
Author(s):  
C. Wolpers ◽  
R. Blaschke
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Bile Pigment ◽  
X Ray Diffraction ◽  
Triclinic Crystal System ◽  
X Ray ◽  
Follow Up Study ◽  
Infra Red ◽  
Main Components

Scanning microscopy was used to study the surface of human gallstones and the surface of fractures. The specimens were obtained by operation, washed with water, dried at room temperature and shadowcasted with carbon and aluminum. Most of the specimens belong to patients from a series of X-ray follow-up study, examined during the last twenty years. So it was possible to evaluate approximately the age of these gallstones and to get information on the intensity of growing and solving.Cholesterol, a group of bile pigment substances and different salts of calcium, are the main components of human gallstones. By X-ray diffraction technique, infra-red spectroscopy and by chemical analysis it was demonstrated that all three components can be found in any gallstone. In the presence of water cholesterol crystallizes in pane-like plates of the triclinic crystal system.

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