首页|Synthesis and energy storage characteristics of MnO microchains induced by high magnetic field

Synthesis and energy storage characteristics of MnO microchains induced by high magnetic field

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? 2022 Elsevier B.V.A magnetic field induced hydrothermal method is applied to synthesize precursors, followed by annealing to prepare mesoporous MnO microchains. Different morphologies of the ultimate products can be dominated by changing the magnetic field strength to acquire good electrochemical performances. The initial high reversible capacity of MnO microchains is 948 mA h g?1. After 250 cycles, the reversible capacity retains about 769 mA h g?1 at 2 C, even after 2000 cycles, the reversible capacity maintains around 198 mA h g?1 at 8 C. The superb electrochemical properties could originate from the mesoporosity of aggregated nanoparticles of the MnO 1D-microchain structure induced by applied magnetic field of 8 T, which is beneficial for the fast transport of Li+ and electron, and can adapt to the dramatic volume change during the Li+ deintercalation.

High magnetic fieldLi-ion batteriesMicrochainsMnO Anode

Wei Y.、Ying L.、Ma X.、Zhou L.、Zi Z.、Dai J.

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Department of New Energy School of Physics and Materials Engineering Hefei Normal University

Key Laboratory of Materials Physics Institute of Solid State Physics Chinese Academy of Sciences

2022

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN:0925-8388
年,卷(期):2022.926
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