Local Structure and Dynamics in the Na Ion Battery Positive Electrode Material Na3V2(PO4)2F3

2014 ◽  
Vol 26 (8) ◽  
pp. 2513-2521 ◽  
Author(s):  
Zigeng Liu ◽  
Yan-Yan Hu ◽  
Matthew T. Dunstan ◽  
Hua Huo ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Electrode Material ◽  
Local Structure ◽  
Positive Electrode ◽  
Structure And Dynamics ◽  
Positive Electrode Material

ChemInform Abstract: Local Structure and Dynamics in the Na Ion Battery Positive Electrode Material Na3V2(PO4)2F3.

ChemInform ◽  
2014 ◽  
Vol 45 (28) ◽  
pp. no-no
Author(s):  
Zigeng Liu ◽  
Yan-Yan Hu ◽  
Matthew T. Dunstan ◽  
Hua Huo ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Electrode Material ◽  
Local Structure ◽  
Positive Electrode ◽  
Structure And Dynamics ◽  
Positive Electrode Material

scholarly journals Local structure and electrochemical performances of sulfurized polyethylene glycol after heat treatment

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Nobuhiko Takeichi ◽  
Toshikatsu Kojima ◽  
Hiroshi Senoh ◽  
Hisanori Ando
Keyword(s):  
Heat Treatment ◽  
Polyethylene Glycol ◽  
Electrode Material ◽  
Local Structure ◽  
High Energy ◽  
Positive Electrode ◽  
Electrochemical Performances ◽  
X Ray ◽  
Positive Electrode Material ◽  
X Ray Absorption

Abstract Designing a high-capacity positive electrode material is critical for the advancement of lithium-ion batteries. Sulfurized polyethylene glycol (SPEG), containing ca. 61 wt% of sulfur, is a promising positive electrode material that exhibits a large initial discharge capacity of more than 800 mAh g−1. In this study, we present the local structure and electrochemical performances of SPEG. A high-energy X-ray total scattering experiment revealed that sulfur in SPEG is predominantly fragmented and bound to carbon atoms. The changes in the physicochemical properties of SPEG due to heat treatment with nitrogen gas at various temperatures were investigated using thermogravimetric analysis, Raman spectroscopy, X-ray absorption near edge structure, and extended X-ray absorption fine structure. Comparing the electrochemical performances of SPEG after heat treatment at various temperatures, it was found that S–S and C=S bonds contribute to the overall electrochemical performance of SPEG.

Interplay between local structure and transport properties in iron-doped LiCoPO4 olivines

2017 ◽  
Vol 5 (27) ◽  
pp. 14020-14030 ◽  
Author(s):  
Sergio Brutti ◽  
Jessica Manzi ◽  
Daniele Meggiolaro ◽  
Francesco M. Vitucci ◽  
Francesco Trequattrini ◽  
...  
Keyword(s):  
Transport Properties ◽  
High Voltage ◽  
Electrode Material ◽  
Local Structure ◽  
Positive Electrode ◽  
Next Generation ◽  
Positive Electrode Material ◽  
Iron Doped ◽  
Li Ion

LiCoPO4 (LCP) is a challenging high voltage positive electrode material for next-generation secondary Li-ion cells.

scholarly journals O3–NaxMn1/3Fe2/3O2 as a positive electrode material for Na-ion batteries: structural evolutions and redox mechanisms upon Na+ (de)intercalation

2015 ◽  
Vol 3 (20) ◽  
pp. 10976-10989 ◽  
Author(s):  
B. Mortemard de Boisse ◽  
J.-H. Cheng ◽  
D. Carlier ◽  
M. Guignard ◽  
C.-J. Pan ◽  
...  
Keyword(s):  
Electrode Material ◽  
Positive Electrode ◽  
Structural Transitions ◽  
Positive Electrode Material

O3–Na0.77Mn1/3Fe2/3O2 was studied by in situ XRPD. The system undergoes several structural transitions from 1.5 V to 4.3 V: O′3 → O3 → P3 → “X”.

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