Effects of high-energy milling on the solid-state synthesis of pure nano-sized Li4Ti5O12 for high power lithium battery applications

2013 ◽  
Vol 114 (3) ◽  
pp. 925-930 ◽  
Author(s):  
Seung-Woo Han ◽  
Joayoung Jeong ◽  
Dang-Hyok Yoon
Keyword(s):  
Solid State ◽  
High Power ◽  
Lithium Battery ◽  
High Energy ◽  
Solid State Synthesis ◽  
High Energy Milling

The Effect of High Energy Milling on the Solid State Synthesis of MnFe2O4 from Mixtures of MnO-Fe2O3 and Mn3O4-Fe2O3

2003 ◽  
Vol 58 (5) ◽  
pp. 415-422 ◽  
Author(s):  
V. Berbenni ◽  
A. Marinia ◽  
A. Profumo ◽  
L. Cucca
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Ball Milling ◽  
High Energy ◽  
Physical Mixture ◽  
Solid State Synthesis ◽  
Experimental Conditions ◽  
High Energy Milling ◽  
Mn Oxides

A thermal treatment at 900°C (under nitrogen) of a milled mixture MnO-Fe2O3 yields MnFe2O4 mainly as the product of the reaction between Mn3O4 (produced by ball milling) and Fe2O3. Under the same experimental conditions but starting from an unmilled MnO- Fe2O3 mixture, the formation of MnFe2O4 is only partial and occurs through Mn3O4 (formed by oxidation of MnO). The same thermal treatment (900°C under nitrogen) of a milled Mn3O4-Fe2O3 mixture yields MnFe2O4 mainly as the product of the reaction between Mn3O4 and Mn2O3/MnO2 (the higher Mn oxides being produced by ball milling) and Fe2O3. The effect of high energy milling is more pronounced in the case of the Mn3O4-Fe2O3 system since no MnFe2O4 formation is observed when starting from a physical mixture.

Mechano-thermally Activated Solid-state Synthesis of Li4Ti5O12 Spinel from Li2CO3-TiO2 Mixtures

2010 ◽  
Vol 65 (1) ◽  
pp. 23-26 ◽  
Author(s):  
Vittorio Berbenni ◽  
Chiara Milanese ◽  
Giovanna Bruni ◽  
Amedeo Marini
Keyword(s):  
Solid State ◽  
Gas Adsorption ◽  
High Energy ◽  
Solid State Synthesis ◽  
Scanning Calorimetry ◽  
Modulated Differential Scanning Calorimetry ◽  
Thermally Activated ◽  
High Energy Milling ◽  
Dsc Measurements ◽  
Good Agreement

Simultaneous TG/DSC measurements performed on mixtures 2Li2CO3-5TiO2 (anatase) subjected to high-energy milling showed that both the temperature and the enthalpy of Li2CO3 decomposition are much lower than in the case of TG/DSC runs performed on a sample of a physical mixture. On the basis of the thermoanalytical evidence a solid-state synthesis of the spinel compound Li4Ti5O12 has been proposed that combines mechanical (by high-energy milling) and thermal activation (8 h annealing at 973 K): the obtained compound shows a lattice constant in very good agreement with that expected for the pure phase Li1+xTi2−xO4 (x = 0.333). The molar heat capacity of Li4Ti5O12 has been determined in the temperature range 323 - 633 K by quasi-isothermal Modulated Differential Scanning Calorimetry (MDSC). The specific surface area of Li4Ti5O12 has been determined by gas adsorption

Solid state synthesis of LiFePO4 studied by in situ high energy X-ray diffraction

2011 ◽  
Vol 21 (15) ◽  
pp. 5604 ◽  
Author(s):  
Zonghai Chen ◽  
Yang Ren ◽  
Yan Qin ◽  
Huiming Wu ◽  
Shengqian Ma ◽  
...  
Keyword(s):  
Solid State ◽  
High Energy ◽  
Solid State Synthesis ◽  
X Ray Diffraction ◽  
X Ray

Facile low temperature solid state synthesis of iodoapatite by high-energy ball milling

RSC Advances ◽  
2014 ◽  
Vol 4 (73) ◽  
pp. 38718-38725 ◽  
Author(s):  
Fengyuan Lu ◽  
Tiankai Yao ◽  
Jinling Xu ◽  
Jingxian Wang ◽  
Spencer Scott ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
Low Temperature ◽  
Ball Milling ◽  
Thermal Annealing ◽  
Amorphous Matrix ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Solid State Synthesis ◽  
Energy Ball

High energy ball milled iodoapatite in the form of an amorphous matrix embedded with nanocrystals can be readily crystallized by subsequent low temperature thermal annealing, which greatly improves the thermal stability and iodine confinement.

scholarly journals High energy density in silver niobate ceramics

2016 ◽  
Vol 4 (44) ◽  
pp. 17279-17287 ◽  
Author(s):  
Ye Tian ◽  
Li Jin ◽  
Hangfeng Zhang ◽  
Zhuo Xu ◽  
Xiaoyong Wei ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Energy Density ◽  
High Power ◽  
High Energy ◽  
High Energy Density ◽  
Super Capacitors

Solid-state dielectric energy storage is the most attractive and feasible way to store and release high power energy compared to chemical batteries and electrochemical super-capacitors.

Efficient, high power 780 nm pumps for high energy class mid-infrared solid state lasers

2020 ◽  
Author(s):  
Paul A. Crump ◽  
Martin Wilkens ◽  
Marko Hübner ◽  
Seval Arslan ◽  
Markus Niemeyer ◽  
...  
Keyword(s):  
Solid State ◽  
High Power ◽  
High Energy ◽  
Energy Class ◽  
Solid State Lasers ◽  
Mid Infrared
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