Effects of synthesis conditions on the structural and electrochemical properties of the Li-rich material Li[Li0.2Ni0.17Co0.16Mn0.47]O2 via the solid-state method

2013 ◽  
Vol 91 ◽  
pp. 214-218 ◽  
Author(s):  
Yanhong Xiang ◽  
Zhoulan Yin ◽  
Yunhe Zhang ◽  
Xinhai Li
Keyword(s):  
Solid State ◽  
Electrochemical Properties ◽  
Solid State Method ◽  
Synthesis Conditions ◽  
State Method ◽  
Rich Material

Optimization of the Synthesis Conditions of LiMnPO4 for Lithium Secondary Battery by Solid State Method

2012 ◽  
Vol 602-604 ◽  
pp. 1044-1049 ◽  
Author(s):  
You Rong Wang ◽  
Han Tao Liao ◽  
Jia Wang ◽  
Yu Chan Zhu ◽  
Si Qing Cheng
Keyword(s):  
Solid State ◽  
Electrochemical Properties ◽  
Cycling Performance ◽  
Molar Ratio ◽  
Electrochemical Performances ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Solid State Method ◽  
Synthesis Conditions ◽  
State Method

In order to enhance the electrochemical performance of LiMnPO4 cathode material, we optimized the synthesis conditions of LiMnPO4 using a simple solid state reaction. The influence of factors of the pre-sintering temperature, carbon source and molar ratio of Zn to Mn, as well as the electrochemical properties of obtained LiMnPO4 powder were studied. The precursor of Zn-doping LiMnPO4/C was characterized by Differential Scanning Calorimetry and thermogravimetry. The microstructure of the samples was characterized by X-ray diffraction (XRD). The optimized LiMnPO4 cathode has good electrochemical properties and its discharge capacity could reach 140.2 mAh g−1 at 0.02 C rate and 111.3 mAh g−1 at 0.1 C rate with satisfactory cycling performance. It implies that the synthesis of LiMnPO4/C composite with excellent electrochemical performances can be achieved by a simple solid state method, which will boost the practical application of LiMnPO4 cathode materials.

Electrochemical properties of high-voltage LiNi0.5Mn1.5O4 synthesized by a solid-state method

RSC Advances ◽  
2014 ◽  
Vol 4 (50) ◽  
pp. 26022-26029 ◽  
Author(s):  
Yan-Zhuo Lv ◽  
Yan-Zhang Jin ◽  
Yuan Xue ◽  
Jin Wu ◽  
Xiao-Gang Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochemical Properties ◽  
High Voltage ◽  
Raw Materials ◽  
Cycling Stability ◽  
Solid State Method ◽  
State Method ◽  
Bulk Scale

The high-voltage LiNi0.5Mn1.5O4 synthesized at 850 °C for 12 h and sintered at 600 °C for 6 h exhibits excellently cycling stability from industrial raw materials in bulk scale (>0.5 kg).

Exploring the synthesis conditions and formation mechanisms of Li-rich layered oxides via solid-state method

2021 ◽  
Vol 854 ◽  
pp. 157204
Author(s):  
Yongxiang Chen ◽  
Shuliang Luo ◽  
Jin Leng ◽  
Shiyi Deng ◽  
Sheng Yan ◽  
...  
Keyword(s):  
Solid State ◽  
Formation Mechanisms ◽  
Layered Oxides ◽  
Solid State Method ◽  
Synthesis Conditions ◽  
State Method

scholarly journals Effects of Synthesis Conditions on the Formation of Si-Substituted Alpha Tricalcium Phosphates

2020 ◽  
Vol 21 (23) ◽  
pp. 9164
Author(s):  
Katarzyna Szurkowska ◽  
Łukasz Szeleszczuk ◽  
Joanna Kolmas
Keyword(s):  
Solid State ◽  
Crystalline Phase ◽  
Chemical Precipitation ◽  
Solid State Synthesis ◽  
Precipitation Method ◽  
Solid State Method ◽  
X Ray ◽  
Synthesis Conditions ◽  
Transmission Electron ◽  
State Method

Powders of α-TCP containing various amounts of silicon were synthesized by two different methods: Wet chemical precipitation and solid-state synthesis. The obtained powders were then physico–chemically studied using different methods: Scanning and transmission electron microscopy (TEM and SEM), energy-dispersive X-ray spectroscopy (EDS), powder X-ray diffractometry (PXRD), infrared and Raman spectroscopies (FT-IR and R), and solid-state nuclear magnetic resonance (ssNMR). The study showed that the method of synthesis affects the morphology of the obtained particles, the homogeneity of crystalline phase and the efficiency of Si substitution. Solid-state synthesis leads to particles with a low tendency to agglomerate compared to the precipitation method. However, the powders obtained by the solid-state method are less homogeneous and contain a significant amount of other crystalline phase, silicocarnotite (up to 7.33%). Moreover, the microcrystals from this method are more disordered. This might be caused by more efficient substitution of silicate ions: The silicon content of the samples obtained by the solid-state method is almost equal to the nominal values.

scholarly journals Elucidation of the surface characteristics and electrochemistry of high-performance LiNiO2

2016 ◽  
Vol 52 (22) ◽  
pp. 4239-4242 ◽  
Author(s):  
Jing Xu ◽  
Feng Lin ◽  
Dennis Nordlund ◽  
Ethan J. Crumlin ◽  
Feng Wang ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
High Capacity ◽  
Surface Characteristics ◽  
Optimal Synthesis ◽  
Solid State Method ◽  
Synthesis Conditions ◽  
Phase Pure ◽  
State Method

Phase pure LiNiO2was prepared using a solid-state method and the optimal synthesis conditions led to a remarkably high capacity of 200 mA h g−1with excellent retention.

ChemInform Abstract: Electrochemical Properties of High-Voltage LiNi0.5Mn1.5O4Synthesized by a Solid-State Method.

ChemInform ◽  
2014 ◽  
Vol 45 (47) ◽  
pp. no-no
Author(s):  
Yan-Zhuo Lv ◽  
Yan-Zhang Jin ◽  
Yuan Xue ◽  
Jin Wu ◽  
Xiao-Gang Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochemical Properties ◽  
High Voltage ◽  
Solid State Method ◽  
State Method
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