Temperature-dependent insertion and adsorption of lithium on spinel Li4Ti5O12(111) thin films – an angle-resolved XPS study

2018 ◽  
Vol 20 (27) ◽  
pp. 18319-18327 ◽  
Author(s):  
Jihyun Kim ◽  
Florian Buchner ◽  
R. Jürgen Behm

Aiming at a detailed understanding of the Li adsorption and insertion behavior on/into lithium titanate (Li4Ti5O12, LTO), which is a promising anode material in Li-ion batteries, we have investigated the interaction of vapor deposited Li with LTO in the temperature range between 80 K and room temperature by ARXPS.

2013 ◽  
Vol 688 ◽  
pp. 86-92 ◽  
Author(s):  
Guan-nan Zhu ◽  
Yuan-jin Du ◽  
Yong-gang Wang ◽  
Ai-shui Yu ◽  
Yong-yao Xia

2013 ◽  
Vol 779-780 ◽  
pp. 307-310
Author(s):  
Neng Wei Wang ◽  
Zai Chun Huang ◽  
Xu Mei Cui ◽  
Zhao Yu Wu

Anode material Li4Ti5O12 was prepared by the method of solid-state reaction at high temperature. In the experiment, it was utilized by undoping and a small amount of Mg2+ doping with raw material respectively. The morphology of powder was observed by scanning electron microscopy (SEM), the phase analysis was done by X-ray diffraction analysis (XRD), and the charging and discharging tests with constant current were also carried out at room temperature. The results showed that little effect was on the particle size by a small amount of Mg2+ doping, the change of the structure of the powder material was not caused, but the conductivity of Li4Ti5O12 anode material was increased, the capacity and stability of the charging and discharging cycles were raised. It fully proved that Mg2+ doping was relatively effective. Keywords: Li-ion battery;lithium titanate (Li4Ti5O12); doping;charging and discharging.


Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 882-889 ◽  
Author(s):  
A. Kostopoulou ◽  
D. Vernardou ◽  
K. Savva ◽  
E. Stratakis

All-inorganic Cs4PbBr6 perovskite nanohexagons pre-synthesized by a room temperature co-precipitation method as an anode material in Li-ion batteries.


2017 ◽  
Vol 7 ◽  
pp. 184798041771108 ◽  
Author(s):  
N Karthigayan ◽  
P Manimuthu ◽  
M Priya ◽  
Suresh Sagadevan

The searches for advanced battery materials are endless. Ferrites have drawn much attention as a potential anode material in Li-ion battery. Nanocrystalline transition metal ferrite MFe2O4 (M = Ni, Co and Cu) thin films were deposited by spray pyrolysis technique over antimony doped tin oxide substrate. The phase and surface morphology were studied by X-ray diffraction and scanning electron microscope measurements, respectively. Magnetic property, film thickness and electrochemical performance of the materials are studied. The result shows that the films are of single phase, with cubic spinel structure for NiFe2O4 and CoFe2O4 and tetragonal structure for CuFe2O4. Magnetization studies reveal that the films are ferrimagnetic in nature. Electrochemical measurement reveals NiFe2O4 and CuFe2O4 are having good recyclable nature, which can be used as potential anode material for Li-ion batteries.


2010 ◽  
Vol 55 (19) ◽  
pp. 5453-5458 ◽  
Author(s):  
Bingbing Tian ◽  
Hongfa Xiang ◽  
Le Zhang ◽  
Zhong Li ◽  
Haihui Wang

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jose Recatala-Gomez ◽  
Pawan Kumar ◽  
Ady Suwardi ◽  
Anas Abutaha ◽  
Iris Nandhakumar ◽  
...  

Abstract The best known thermoelectric material for near room temperature heat-to-electricity conversion is bismuth telluride. Amongst the possible fabrication techniques, electrodeposition has attracted attention due to its simplicity and low cost. However, the measurement of the thermoelectric properties of electrodeposited films is challenging because of the conducting seed layer underneath the film. Here, we develop a method to directly measure the thermoelectric properties of electrodeposited bismuth telluride thin films, grown on indium tin oxide. Using this technique, the temperature dependent thermoelectric properties (Seebeck coefficient and electrical conductivity) of electrodeposited thin films have been measured down to 100 K. A parallel resistor model is employed to discern the signal of the film from the signal of the seed layer and the data are carefully analysed and contextualized with literature. Our analysis demonstrates that the thermoelectric properties of electrodeposited films can be accurately evaluated without inflicting any damage to the films.


2017 ◽  
Vol 5 (17) ◽  
pp. 8087-8094 ◽  
Author(s):  
Yutao Dong ◽  
Dan Li ◽  
Chengwei Gao ◽  
Yushan Liu ◽  
Jianmin Zhang

Self-assembled 3D urchin-like Ti0.8Sn0.2O2–rGO was fabricated by a one-step hydrothermal process as an anode material for high-rate and long cycle life LIBs.


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