Average and Local Structure Analyses using Neutron Source and Cathode Performance of LiMn1/3Co1/3Ni1/3O2 as a Cathode Active Materials for Li ion Battery

2008 ◽  
Keyword(s):  
Neutron Source ◽  
Local Structure ◽  
Li Ion Battery ◽  
Active Materials ◽  
Li Ion

scholarly journals Short-Range Ordering in Battery Electrode, the ‘Cation-Disordered’ Rocksalt Li1.25Nb0.25Mn0.5O2

2019 ◽  
Author(s):  
Michael Jones ◽  
Philip J. Reeves ◽  
Ieuan D. Seymour ◽  
Matthew J. Cliffe ◽  
Siân E. Dutton ◽  
...  
Keyword(s):  
Local Structure ◽  
Solid State Nmr ◽  
Cation Ordering ◽  
Li Ion Battery ◽  
X Ray Diffraction ◽  
X Ray ◽  
Short Range Ordering ◽  
Battery Electrode ◽  
Li Ion ◽  
Battery Material

We show the occurrence of local cation ordering in Li-ion battery material Li<sub>1.25</sub>Nb<sub>0.25</sub>Mn<sub>0.5</sub>O<sub>2</sub>, previously thought to be disordered. We deduce this ordering from X-ray diffraction, and test it against neutron diffraction & PDF, magnetic susceptibility and solid state NMR evidence. We identify the nature of the ordering as having a local structure related to that of gamma-LiFeO<sub>2</sub>, determine the correlation length of such ordering, and demonstrate its significant consequences for the material's electrochemistry.

scholarly journals Short-range ordering in a battery electrode, the ‘cation-disordered’ rocksalt Li1.25Nb0.25Mn0.5O2

2019 ◽  
Vol 55 (61) ◽  
pp. 9027-9030 ◽  
Author(s):  
Michael A. Jones ◽  
Philip J. Reeves ◽  
Ieuan D. Seymour ◽  
Matthew J. Cliffe ◽  
Siân E. Dutton ◽  
...  
Keyword(s):  
Correlation Length ◽  
Local Structure ◽  
Short Range ◽  
Li Ion Battery ◽  
Synthesis Conditions ◽  
Short Range Ordering ◽  
Battery Electrode ◽  
Li Ion ◽  
Battery Material

We demonstrate short-range ordering in Li-ion battery material Li1.25Nb0.25Mn0.5O2, and identify its local structure and correlation length—which is sensitive to synthesis conditions and has important consequences for the material's electrochemistry.

Experimental and theoretical investigation of Li-ion battery active materials properties: Application to a graphite/Ni0.6Mn0.2Co0.2O2 system

2021 ◽  
Vol 366 ◽  
pp. 137428
Author(s):  
Oumaima Chaouachi ◽  
Jean-Michel Réty ◽  
Sylvie Génies ◽  
Marion Chandesris ◽  
Yann Bultel
Keyword(s):  
Theoretical Investigation ◽  
Li Ion Battery ◽  
Active Materials ◽  
Materials Properties ◽  
Li Ion
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