A stable and ultrafast K ion storage anode based on phase-engineered MoSe2.
Chem Commun (Camb)
; 57(32): 3885-3888, 2021 Apr 25.
Article
em En
| MEDLINE
| ID: mdl-33871503
Potassium-ion batteries (PIBs) are attracting increasing attention due to the abundance of K resources, but the sluggish kinetics and inferior cycling stability of anodes still hinder their application. Herein, we present a hybrid 1T/2H phase MoSe2 anode, which shows noticeable pseudocapacitive response and fast kinetics for K storage. Correspondingly, superior electrochemical performances including a high reversible capacity of 440 mA h g-1 after 100 cycles at 0.1 A g-1 and superb rate capacity of 211 mA h g-1 at 20.0 A g-1 are achieved. We believe this work may shed light on the phase engineering of transition metal compounds for rapid charging PIBs.
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01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Chem Commun (Camb)
Assunto da revista:
QUIMICA
Ano de publicação:
2021
Tipo de documento:
Article