Revealing High Na-Content P2-Type Layered Oxides as Advanced Sodium-Ion Cathodes
نویسندگان
چکیده
منابع مشابه
P2-type transition metal oxides for high performance Na-ion battery cathodes
The particle pulverization induced by volume change and the disproportionation reaction of Mn to Mn and electrolyte-soluble Mn are two major challenges for Na0.67MnO2 cathodes in Na-ion batteries. Herein, Ni and/or Fe doped Na0.67MnO2 was synthesized to suppress the particle pulverization and disproportionation reaction. The replacement of 33% Mn ions by Ni in Na0.67MnO2 can effectively reduce ...
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Herein, the synthesis of new quaternary layered Na-based oxides of the type Na x Mn y Ni z Fe0.1Mg0.1O2 (0.67≤ x ≤ 1.0; 0.5≤ y ≤ 0.7; 0.1≤ z ≤ 0.3) is described. The synthesis can be tuned to obtain P2- and O3-type as well as mixed P-/O-type phases as demonstrated by structural, morphological, and electrochemical properties characterization. Although all materials show good electrochemical perf...
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Three-dimensional V₂O₅ hollow structures have been prepared through a simple synthesis strategy combining solvothermal treatment and a subsequent thermal annealing. The V₂O₅ materials are composed of microspheres 2-3 μm in diameter and with a distinct hollow interior. The as-synthesized V₂O₅ hollow microspheres, when evaluated as a cathode material for lithium-ion batteries, can deliver a speci...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2020
ISSN: 0002-7863,1520-5126
DOI: 10.1021/jacs.9b13572