Effects of synthetic parameters on structure and electrochemical performance of spinel lithium manganese oxide by citric acid-assisted sol–gel method

2006 ◽  
Vol 425 (1-2) ◽  
pp. 343-347 ◽  
Author(s):  
Tingfeng Yi ◽  
Changsong Dai ◽  
Kun Gao ◽  
Xinguo Hu
Keyword(s):  
Citric Acid ◽  
Electrochemical Performance ◽  
Manganese Oxide ◽  
Sol Gel ◽  
Lithium Manganese Oxide ◽  
Gel Method ◽  
Sol Gel Method ◽  
Spinel Lithium Manganese Oxide ◽  
Lithium Manganese

scholarly journals Synthesis of Lithium Manganese Oxide by a Sol-Gel Method and Its Electrochemical Behaviors

2003 ◽  
Vol 6 (4) ◽  
pp. 229-235
Author(s):  
Euh-Duck Jeong ◽  
Sung-Wook Moon ◽  
Hak-Myoung Lee ◽  
Mi-Sook Won ◽  
Jang-Hee Yoon ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Sol Gel ◽  
Lithium Manganese Oxide ◽  
Electrochemical Behaviors ◽  
Gel Method ◽  
Sol Gel Method ◽  
Lithium Manganese

Laboratory Scale Production of Lithium Manganese Oxide as Active Material of Lithum-Ion Batteries in Sol-Gel Method Assisted by Local Biomass

2020 ◽  
Vol 10 (2) ◽  
Author(s):  
Muhammad Ilham Bayquni ◽  
Susanto Sigit Rahardi ◽  
Elsy Rahimi Chaldun ◽  
Bambang Sunendar Purwasasmita
Keyword(s):  
Manganese Oxide ◽  
Sol Gel ◽  
Lithium Manganese Oxide ◽  
Synthesis Process ◽  
Scale Production ◽  
Limn2o4 Spinel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Lithium Manganese ◽  
Auto Combustion

Experimental and theoretical studies of the production of lithium manganese oxide (LiMn2O4) using sol-gel method have been carried out on a larger scale than previous studies.  The purpose of this investigation was to observe sample behavior along the synthesis process to be considered in further scale-up production of lithium manganese oxide, based on the sol-gel method. Calcination products were analyzed by TGA and crystalline phase formation analyzed by XRD. LiMn2O4 spinel phase was formed at 600oC. SEM showed some interesting morphology. Xerogel swelling was observed overwhelmingly during drying at 250oC to 300oC. Exothermic occurrence as a source of irregular and unpredictable auto combustion in the calcination process. Both phenomenon were not observed in a xerogel made with a small amount precursor. Therefore, initial mixture adjustment and additional steps were considered for production.

Preparation and characterization of layered LiNi0.9Co0.05Mn0.025Mg0.025O2 cathode material by a sol–gel method for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 40779-40784 ◽  
Author(s):  
Daochuan Jiang ◽  
Li Zhao ◽  
Yanbin Shao ◽  
Dianlong Wang
Keyword(s):  
Citric Acid ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Layered Structure ◽  
Sol Gel ◽  
Lithium Ion ◽  
Gel Method ◽  
Sol Gel Method ◽  
Excellent Electrochemical Performance

LiNi0.9Co0.05Mn0.025Mg0.025O2 prepared by sol–gel method using citric acid had a well ordered hexagonal layered structure and showed excellent electrochemical performance.

KNN-BF Lead-Free Piezoelectric Ceramics Synthesized by Sol-Gel Method

2015 ◽  
Vol 740 ◽  
pp. 3-6
Author(s):  
Guo Yuan Cheng ◽  
Xing Hua Fu ◽  
Xin Jin ◽  
Wen Hong Tao ◽  
Yu Qin Qiang
Keyword(s):  
Comparative Analysis ◽  
Citric Acid ◽  
Dielectric Loss ◽  
Sintering Temperature ◽  
Sol Gel ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Gel Method ◽  
Sol Gel Method ◽  
Metal Chelator

KNN-BF piezoelectric ceramics synthesized by sol-gel method in this experiment. By controlling bismuth and iron content in the system to study effects of them. We selected citric acid as metal chelator and ethylene glycol as esterification agent. PH maintained 5-6 during preparation of the sol. Sintering temperature of ceramic selected 1100°C. Preparation ceramics under these conditions and comparative analysis, the structure of ceramics is single perovskite and shap of crystals are square block. With the increase of x, properties of ceramics firstly increases and then decreases: d33, εr, Qm, Kpreaching the maximum, values of them were 136pC/N, 630(f =1KHz), 212, 0.41 respectively; dielectric loss to minimum is 0.07(f =1KHz); at this point, ceramics had best performance.

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