Microstructural control of new intercalation layered titanoniobates with large and reversible d-spacing for easy Na+ ion uptake

Abstract

Key issues for Na-ion batteries are the development of promising electrode materials with favorable sites for Na+ ion intercalation/deintercalation and an understanding of the reaction mechanisms due to its high activation energy and poor electrochemical reversibility. We first report a layered H0.43Ti0.93Nb1.07O5 as a new anode material. This anode… (More)
DOI: 10.1126/sciadv.1700509

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