Water-stable O3-type layered Na transition metal oxides enabling environment friendly ‘aqueous processing’ of electrodes with long-term electrochemical stability

2020 ◽  
Vol 8 (35) ◽  
pp. 18064-18078 ◽  
Author(s):  
Bachu Sravan Kumar ◽  
Anagha Pradeep ◽  
Animesh Dutta ◽  
Amartya Mukhopadhyay
Keyword(s):  
Alkali Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Metal Ion ◽  
Electrochemical Stability ◽  
Slab Thickness ◽  
Water Stability ◽  
Aqueous Processing ◽  
Environment Friendly

Tuning the TM-ion ‘slab thickness’ and alkali metal-ion ‘inter-slab spacing’ of Na-TM-oxides in opposite terms (and also suppressing TM-dissolution in electrolyte) leads to outstanding air/water-stability and long-term electrochemical stability.

Metal‐Ion Coupled Electron Transfer Kinetics in Intercalation‐Based Transition Metal Oxides

2020 ◽  
Vol 10 (22) ◽  
pp. 1903933 ◽  
Author(s):  
Victoria A. Nikitina ◽  
Sergey Y. Vassiliev ◽  
Keith J. Stevenson
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Metal Ion ◽  
Electron Transfer Kinetics

Chemical Bonding and Valence State—Nonmetals

1969 ◽  
Vol 13 ◽  
pp. 159-181 ◽  
Author(s):  
David W. Fischer
Keyword(s):  
Magnetic Properties ◽  
Band Structure ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Metal Ion ◽  
Energy Band Structure ◽  
Band Spectrum ◽  
X Ray ◽  
Excitation Conditions ◽  
Crossover Transition

The LIII x-ray emission bands from some 3d transition metal oxides and the K emission bands from some second and third period metal oxides and nitrides are shown and discussed in relation to the energy band structure of these compounds. It is demonstrated that the LIII emission bands can be grossly distorted by excitation conditions. Many of the compound spectra show strong evidence of a crossover transition which originates in the anion and terminates in the metal ion. For the 3d compounds this crossover transition appears to be related to the elsctrical and magnetic properties. In oxides of some second and third period elements it appears that the crossover transitions are responsible for the entire K band spectrum.

Opportunities in Na/K [Hexacyanoferrate] Frameworks for Sustainable Non-aqueous Na+/K+ batteries

2022 ◽  
Author(s):  
Ashwani Tyagi ◽  
Nagmani . ◽  
Sreeraj Puravankara
Keyword(s):  
Transition Metal ◽  
Alkali Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Cathode Materials ◽  
The Past ◽  
Nasicon Type

In the past decade, the most sought cathode materials for SIBs and PIBs include transition metal oxides (TMOs), polyanionic phosphates and fluoro phosphates, NASICON-type polyanionic compounds, and alkali metal hexacyanoferrates...

The effect of cation mixing controlled by thermal treatment duration on the electrochemical stability of lithium transition-metal oxides

2017 ◽  
Vol 19 (44) ◽  
pp. 29886-29894 ◽  
Author(s):  
Gang Sun ◽  
Xucai Yin ◽  
Wu Yang ◽  
Ailing Song ◽  
Chenxiao Jia ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Transition Metal ◽  
Electrochemical Performance ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Treatment Duration ◽  
Electrochemical Stability ◽  
Optimal Degree ◽  
Cation Mixing

An optimal degree of Ni2+occupancy in the lithium layer as “pillaring” that enhances the electrochemical performance of NMC materials.

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