Hydrolysis Precipitation-assisted Solid-state Reaction to Li4Ti5O12 and its Electrochemical Properties

2011 ◽  
Vol 15 (1) ◽  
pp. 5-10
Author(s):  
Jie Xu ◽  
Chunju Lv ◽  
Guanglei Tian
Keyword(s):  
Solid State ◽  
Large Scale ◽  
Lithium Titanate ◽  
Scale Production ◽  
Solid State Method ◽  
Discharge Performance ◽  
Optimum Synthesis ◽  
Large Scale Production ◽  
Spinel Lithium Titanate ◽  
State Method

Spinel lithium titanate (Li4Ti5O12) materials were synthesized by a hydrolysis precipitation-assisted solid-state method in the temperature range from 600 to 900℃ for large-scale production. DSC/TGA, XRD and SEM were used to characterize the as-prepared samples. The optimum synthesis condition was examined in relation to the charge–discharge performance. It was found that when the dry hydrolysis precipitation precursor with 8% Li excess was calcined at 700–800℃ for 12 h in air, a pure Li4Ti5O12 phase was obtained. The as-obtained material has the best electrochemical performance due to its narrow size distribution and precise stoichiometry of the oxide.

NOVEL ANODE Li-ION SECONDARY BATTERIES DERIVED FROM NANOCRYSTALLINE Li4Ti5O12/POLYACENE MATERIALS

2009 ◽  
Vol 08 (04n05) ◽  
pp. 333-336
Author(s):  
ABRAHAM F. JALBOUT ◽  
HAI-MING XIE ◽  
RONG-SHUN WANG ◽  
LING-YUN ZHANG ◽  
HAI-YING YU ◽  
...  
Keyword(s):  
Large Scale ◽  
Electrode Materials ◽  
Phenol Formaldehyde ◽  
Lithium Titanate ◽  
High Rate ◽  
Cycle Performance ◽  
Scale Production ◽  
Large Scale Production ◽  
Spinel Lithium Titanate ◽  
Li Ion

Spinel lithium titanate ( Li4Ti5O12 ), shown to be a superior anode material for energy storage battery, has attracted a great deal of attention because of the excellent Li-ion insertion and extraction reversibility. The high rate characteristics must be amplified before large scale production. A method to overcome this is to prepare electrode materials coated with carbon. A Li4Ti5O12 /Polyacene (PAS) composite were first prepared via an in situ carbonization of phenol-formaldehyde (PF) resin route using TiO2 -anatase, Li2CO3 , and PF resin as precursors by a solid-state reaction. With increasing the current density, the sample still keeps the excellent cycle performance.

A facile and versatile method for preparation of colored TiO2 with enhanced solar-driven photocatalytic activity

Nanoscale ◽  
2014 ◽  
Vol 6 (17) ◽  
pp. 10216-10223 ◽  
Author(s):  
Huaqiao Tan ◽  
Zhao Zhao ◽  
Mang Niu ◽  
Chengyu Mao ◽  
Dapeng Cao ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Solid State ◽  
Large Scale ◽  
Chemical Reduction ◽  
Photocatalytic Properties ◽  
Scale Production ◽  
Large Scale Production ◽  
State Chemical ◽  
Reduction Approach

A simple and facile solid-state chemical reduction approach for a large-scale production of colored TiO2 with good photocatalytic properties was developed.

Bioinspired large-scale production of multidimensional high-rate anodes for both liquid & solid-state lithium ion batteries

2019 ◽  
Vol 7 (40) ◽  
pp. 22958-22966 ◽  
Author(s):  
Shenghui Shen ◽  
Shengzhao Zhang ◽  
Shengjue Deng ◽  
Guoxiang Pan ◽  
Yadong Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Large Scale ◽  
Lithium Ion ◽  
High Rate ◽  
Template Method ◽  
Scale Production ◽  
Niobium Oxides ◽  
Large Scale Production

Herein, we firstly proposed multidimensional titanium niobium oxides (1D/2D/3D-TNO) via a versatile bioinspired template method, which employed as high-performance anodes for both liquid and solid state lithium ion batteries

scholarly journals Anaerobic Solid-State Fermentation of Soybean Meal With Bacillus sp. to Improve Nutritional Quality

2021 ◽  
Vol 8 ◽  
Author(s):  
Yanhui Yao ◽  
Hongya Li ◽  
Jia Li ◽  
Baocheng Zhu ◽  
Tongguo Gao
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Soybean Meal ◽  
Nutritional Quality ◽  
Large Scale ◽  
High Yield ◽  
Scale Production ◽  
Large Scale Production ◽  
The Impact

The study evaluated the impact of fermentation with Bacillus sp. on the nutritional quality of soybean meal (SBM) and the changes of bacterial community structure during fermentation. High protease-producing strains were screened to degrade SBM macromolecular protein and anti-nutritional factors (ANFs). Unsterilized SBM then underwent an anaerobic solid-state fermentation method to evaluate the effects of fermentation. Results showed that for the nine high-producing protease strains that were screened, acid-soluble protein (ASP) contents in fermented SBM increased, with the highest value found to be 13.48%, which was fermented using strain N-11. N-11 was identified as Bacillus subtilis. N-11 fermentation reduced ANFs such as glycinin and β-conglycinin by 82.38 and 88.32%, respectively. During N-11 fermentation, the bacterial richness and diversity in SBM increased but not significantly. The high-yield protease strain B. subtilis N-11 selected in this experiment improved the nutritional quality of SBM through fermentation, and it can be used for industrial large-scale production.

A facile synthesis method for fabrication of LaFeO3/g-C3N4 nanocomposite as efficient visible-light-driven photocatalyst for photodegradation of RhB and 4-CP

2019 ◽  
Vol 43 (35) ◽  
pp. 13783-13793 ◽  
Author(s):  
Mohammed Ismael ◽  
Ying Wu
Keyword(s):  
Solid State ◽  
Visible Light ◽  
Large Scale ◽  
Synthesis Method ◽  
Facile Synthesis ◽  
Solid State Method ◽  
Visible Light Driven ◽  
Degradation Activity ◽  
State Method ◽  
Visible Light Photocatalytic

A solid state method for the large scale synthesis of LaFeO3/g-C3N4 nanocomposite with enhanced visible-light photocatalytic degradation activity.

Influence of Preparation Conditions on the Properties of Lithium Titanate Fabricated by a Solid-state Method

2012 ◽  
Vol 16 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Guo-Qing Zhang ◽  
Wenjuan Li ◽  
Hongwei Yang ◽  
Yahui Wang ◽  
Sowjanya B. Rapole ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochemical Performance ◽  
Sintering Temperature ◽  
Lithium Titanate ◽  
Molar Ratio ◽  
Solid State Method ◽  
Preparation Conditions ◽  
Sintering Time ◽  
State Method ◽  
Discharge Curves

Lithium titanate (Li4Ti5O12) was prepared by a quasi solid-state method using water and ethanol as the solvents, in which Li2CO3 and TiO2 were used as the starting materials. In this work, the calcination temperature, molar ratio of Li to Ti, and sintering time were all well investigated. The obtained samples were thoroughly characterized by XRD and SEM, revealing that the above three factors not only affected the crystal structure, but also the morphologies of the resultant samples. Galvanostatic charge discharge curves were also employed to evaluate the electrochemical performance of the samples. The best electrochemical performance of the samples was observed when the molar ratio of Li to Ti, sintering temperature and time are 6:5, 850 oC and 12 hours, respectively. It was revealed that the smaller particle size and the higher crystallinity of the resultant samples were favorable to enhance the electrochemical performance.

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