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Li2NiO2F a New Oxyfluoride Disordered Rocksalt Cathode Material.

Authors :
Xiaoyu Xu
Liquan Pi
Marie, John-Joseph
Rees, Gregory J.
Chen Gong
Shengda Pu
House, Robert A.
Robertson, Alexander W.
Bruce, Peter G.
Source :
Journal of The Electrochemical Society; Aug2021, Vol. 168 Issue 8, p231-236, 6p
Publication Year :
2021

Abstract

Lithium-rich disordered rocksalts such as Li<subscript>1.3</subscript>Nb<subscript>0.3</subscript>Mn<subscript>0.4</subscript>O<subscript>2</subscript> and Li<subscript>2</subscript>MnO<subscript>2</subscript>F are being investigated as high energy density cathodes for next generation Li-ion batteries. They can support the (de) lithiation of lithium ions over large compositional ranges while preserving the same overall structure. Here, we present a new Ni-rich oxyfluoride cathode, Li<subscript>2</subscript>NiO<subscript>2</subscript>F, with a disordered rocksalt structure. Li<subscript>2</subscript>NiO<subscript>2</subscript>F and can deliver a discharge capacity of 200 mAh g<superscript>-1</superscript> at an average voltage of 3.2 V. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00134651
Volume :
168
Issue :
8
Database :
Supplemental Index
Journal :
Journal of The Electrochemical Society
Publication Type :
Academic Journal
Accession number :
152416158
Full Text :
https://doi.org/10.1149/1945-7111/ac1be1