TY - JOUR
T1 - Spinel-Type MgMn2O4Nanoplates with Vanadate Coating for a Positive Electrode of Magnesium Rechargeable Batteries
AU - Doi, Shunsuke
AU - Ise, Ryuta
AU - Mandai, Toshihiko
AU - Oaki, Yuya
AU - Yagi, Shunsuke
AU - Imai, Hiroaki
N1 - Funding Information:
This work was supported by Advanced Low Carbon Technology Specially Promoted Research for Innovative Next Generation Batteries Program (ALCA-SPRING), Grant Number JPMJAL1301, of Japan Science and Technology Agency (JST). The authors thank Prof. Kiyoshi Kanamura (Tokyo Metropolitan University) and his research group for their kind support on measurements.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7/28
Y1 - 2020/7/28
N2 - Spinel-type MgMn2O4 nanoplates ∼10 nm thick were prepared as a positive electrode for magnesium rechargeable batteries by the transformation of metal hydroxide nanoplates. Homogeneous coating with a vanadate layer thinner than 3 nm was achieved on the spinel oxide nanoplates via coverage of the precursor and subsequent mild calcination. We found that the spinel oxide nanoplates with the homogeneous coating exhibit improved electrochemical properties, such as discharge potential, capacity, and cyclability, due to the enhanced insertion and extraction of magnesium ions and suppressed decomposition of electrolytes. The nanometric platy morphology of the spinel oxide and the vanadate coating act synergistically for the improvement of the electrochemical performance.
AB - Spinel-type MgMn2O4 nanoplates ∼10 nm thick were prepared as a positive electrode for magnesium rechargeable batteries by the transformation of metal hydroxide nanoplates. Homogeneous coating with a vanadate layer thinner than 3 nm was achieved on the spinel oxide nanoplates via coverage of the precursor and subsequent mild calcination. We found that the spinel oxide nanoplates with the homogeneous coating exhibit improved electrochemical properties, such as discharge potential, capacity, and cyclability, due to the enhanced insertion and extraction of magnesium ions and suppressed decomposition of electrolytes. The nanometric platy morphology of the spinel oxide and the vanadate coating act synergistically for the improvement of the electrochemical performance.
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U2 - 10.1021/acs.langmuir.0c01298
DO - 10.1021/acs.langmuir.0c01298
M3 - Article
C2 - 32602728
AN - SCOPUS:85089609262
VL - 36
SP - 8537
EP - 8542
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 29
ER -