Improving rate performance of high-voltage spinel cathode by changing structural evolution from two-phase to solid-solution reactions

2018 ◽  
Vol 281 ◽  
pp. 24-30 ◽  
Author(s):  
Yuan Xue ◽  
Yi Han ◽  
Hao-Xiang Yu ◽  
Jie Shu ◽  
Zhen-Bo Wang ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Voltage ◽  
Structural Evolution ◽  
Rate Performance ◽  
Two Phase ◽  
Spinel Cathode

Interplay between two-phase and solid solution reactions in high voltage spinel cathode material for lithium ion batteries

2013 ◽  
Vol 242 ◽  
pp. 736-741 ◽  
Author(s):  
Jie Xiao ◽  
Xiqian Yu ◽  
Jianming Zheng ◽  
Yungang Zhou ◽  
Fei Gao ◽  
...  
Keyword(s):  
Solid Solution ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Lithium Ion ◽  
Two Phase ◽  
Spinel Cathode

scholarly journals Direct Evidence of Concurrent Solid-Solution and Two-Phase Reactions and the Nonequilibrium Structural Evolution of LiFePO4

2012 ◽  
Vol 134 (18) ◽  
pp. 7867-7873 ◽  
Author(s):  
Neeraj Sharma ◽  
Xianwei Guo ◽  
Guodong Du ◽  
Zaiping Guo ◽  
Jiazhou Wang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Direct Evidence ◽  
Structural Evolution ◽  
Two Phase

Transition alpha structure in beta-isomorphous Nb-Hf alloys

1987 ◽  
Vol 45 ◽  
pp. 232-233
Author(s):  
R.W. Carpenter ◽  
Changhai Li ◽  
David J. Smith
Keyword(s):  
Solid Solution ◽  
Solution Phase ◽  
Miscibility Gap ◽  
Large Strains ◽  
Solid Solution Phase ◽  
Two Phase ◽  
Diffuse Intensity ◽  
Metastable Form ◽  
The Matrix ◽  
Equilibrium Morphology

Binary Nb-Hf alloys exhibit a wide bcc solid solution phase field at temperatures above the Hfα→ß transition (2023K) and a two phase bcc+hcp field at lower temperatures. The β solvus exhibits a small slope above about 1500K, suggesting the possible existence of a miscibility gap. An earlier investigation showed that two morphological forms of precipitate occur during the bcc→hcp transformation. The equilibrium morphology is rod-type with axes along <113> bcc. The crystallographic habit of the rod precipitate follows the Burgers relations: {110}||{0001}, <112> || <1010>. The earlier metastable form, transition α, occurs as thin discs with {100} habit. The {100} discs induce large strains in the matrix. Selected area diffraction examination of regions ∼2 microns in diameter containing many disc precipitates showed that, a diffuse intensity distribution whose symmetry resembled the distribution of equilibrium α Bragg spots was associated with the disc precipitate.

Layered oxides with solid-solution reaction for high voltage potassium-ion batteries cathode

2021 ◽  
Vol 412 ◽  
pp. 128735
Author(s):  
Yan-Song Xu ◽  
Yong-Ning Zhou ◽  
Qing-Hua Zhang ◽  
Mu-Yao Qi ◽  
Si-Jie Guo ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Voltage ◽  
Potassium Ion ◽  
Layered Oxides ◽  
Solution Reaction

The enrichment of solid solution in a two-phase alloy during the high pressure torsion

2021 ◽  
pp. 130386
Author(s):  
Anna Korneva ◽  
Askar Kilmametov ◽  
Yuri Zavorotnev ◽  
Leonid Metlov ◽  
Olga Popova ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Pressure ◽  
High Pressure Torsion ◽  
Two Phase

Phase Equilibrium of Mg-Nd-Zn System near Mg-Nd Side at 400°C

2016 ◽  
Vol 873 ◽  
pp. 18-22
Author(s):  
Ming Li Huang ◽  
Xue Shen ◽  
Hong Xiao Li
Keyword(s):  
Solid Solution ◽  
Phase Equilibrium ◽  
Ternary Isothermal Section ◽  
Phase Region ◽  
X Ray Diffraction ◽  
Maximum Solubility ◽  
Two Phase ◽  
Solubility Range ◽  
Three Phase ◽  
Equilibrium Alloys

The equilibrium alloys closed to Mg-Nd side in the Mg-rich corner of the Mg-Zn-Nd system at 400°C have been investigated by scanning electron microscopy, electron probe microanalysis and X-ray diffraction. The binary solid solutions Mg12Nd and Mg3Nd with the solubility of Zn have been identified. The maximum solubility of Zn in Mg12Nd is 4.8at%, and Mg12Nd phase can be in equilibrium with Mg solid solution. However, only when the solubility range of Zn in 26at%~32.2at%, Mg3Nd can be in two-phase equilibrium with Mg solid solution. As the results, two two-phase regions as Mg+Mg12Nd and Mg+Mg3Nd and a three-phase region as Mg+Mg12Nd+Mg3Nd in Mg-Nd-Zn ternary isothermal section at 400°C have been identified.

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