Pressure-induced abnormal insulating state in triangular layered cobaltite LixCoO2 (x = 0.9)

2017 ◽  
Vol 5 (36) ◽  
pp. 19390-19397 ◽  
Author(s):  
Cong Xu ◽  
Weiji Xiao ◽  
Tongchao Liu ◽  
Fei Sun ◽  
Jiaxin Zheng ◽  
...  
Keyword(s):  
Rechargeable Battery ◽  
Lithium Ions ◽  
Lithium Cobaltite ◽  
Battery Material ◽  
Layered Cobaltite

Lithium cobaltite oxides (LixCoO2) have been serving as an important rechargeable battery material with reversible extraction and insertion of lithium ions.

scholarly journals The New Approach of Intercalation Material for The Application of Rechargeable Lithium Batteries

1994 ◽  
Vol 17 (1) ◽  
pp. 1-8
Author(s):  
Shi-Jie Wen ◽  
Xiao-Tian Yin ◽  
L. Nazar
Keyword(s):  
Black Carbon ◽  
Lithium Batteries ◽  
Lithium Battery ◽  
Rechargeable Battery ◽  
Rechargeable Lithium Batteries ◽  
Lithium Ions ◽  
Battery Cell ◽  
New Approach ◽  
Lithium Rechargeable Battery ◽  
Electrochemical Intercalation

A new approach of lithium electrochemical (de)intercalation material has been put forward. This approach requires a two-compound (physically or chemically) composite in which one is a chemically and electrochemically stable and porous (tunnel, cage, layer, etc.) compound such as clay or zeolite, and the other is a chemically and electrochemically stable and metallic compound such as graphite, metal powder or black carbon. Neither does the redox couple in this composite absolutely exist nor does the redox reaction, which is associated with electrochemical charge and discharge processes when this composite is used as an cathodic electrode in a lithium battery cell. In this paper, we show the results of the lithium electrochemical intercalation process in both black carbon-mixed zeolite and clay electrodes. In these solid electrodes, black carbon serves to delocalize (transport) electrons for balancing the charges while zeolite and clay offer the neutrally reversible sites for lithium ions. This approach can hopefully become a guide for the designing of new intercalation material and so will be very important in the application of the lithium rechargeable battery.

TEM characterization of proton-exchanged LiNbO3 optical waveguides

1986 ◽  
Vol 44 ◽  
pp. 480-481
Author(s):  
W. E. Lee
Keyword(s):  
Refractive Index ◽  
Benzoic Acid ◽  
Optical Waveguides ◽  
Total Internal Reflection ◽  
Index Of Refraction ◽  
Optical Measurements ◽  
Lithium Ions ◽  
Wide Channel ◽  
Tem Characterization

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.

Soft X-ray lasing with lithium ions ?

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-201-Pr2-204 ◽  
Author(s):  
C. Reinhardt ◽  
M. Born ◽  
A. Egbert ◽  
B. N. Chichkov ◽  
G. Veres ◽  
...  
Keyword(s):  
Lithium Ions ◽  
X Ray

Superionic Lithium Intercalation through 2 nm x 2 nm Columns in the Crystallographic Shear Phase Nb18W8O69

2019 ◽  
Author(s):  
Kent Griffith ◽  
Clare Grey
Keyword(s):  
High Performance ◽  
Rate Capability ◽  
Block Size ◽  
Lithium Intercalation ◽  
Resonance Spectroscopy ◽  
Complex Metal Oxides ◽  
Battery Electrode ◽  
Crystallographic Shear ◽  
Battery Material ◽  
First Time

Nb18W8O69 (9Nb2O5×8WO3) is the tungsten-rich end-member of the Wadsley–Roth crystallographic shear (cs) structures within the Nb2O5–WO3 series. It has the largest block size of any known, stable Wadsley–Roth phase, comprising 5 ´ 5 units of corner-shared MO6 octahedra between the shear planes, giving rise to 2 nm ´ 2 nm blocks. Rapid lithium intercalation is observed in this new candidate battery material and 7Li pulsed field gradient nuclear magnetic resonance spectroscopy – measured in a battery electrode for the first time at room temperature – reveals superionic lithium conductivity. In addition to its promising rate capability, Nb18W8O69 adds a piece to the larger picture of our understanding of high-performance Wadsley–Roth complex metal oxides.

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