Dual metal ions and water molecular pre-intercalated δ-MnO2 spherical microflowers for aqueous zinc ion batteries

Zhou, Shihao; Wu, Xiangsi; Du, Hongxia; He, Zhangxing; Wu, Xun; Wu, Xianwen

doi:10.1016/j.jcis.2022.05.018

Cited by 49 publications

(21 citation statements)

References 57 publications

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“…Thus, the YMO-0.1 sample exhibits the optimized electrochemical performance among the YMO samples. Moreover, YMO-0.1 exhibits promising energy storage capability in RAZIBs in comparison with the layered MnO 2 cathodes reported in the literature (Table S1 †), 32,33,[60][61][62] showing great potential as a cathode material for RAZIBs. A series of characterizations were performed to gain deeper insights into the charge storage mechanism of the samples in RAZIBs.…”

Section: Nanoscale Papermentioning

confidence: 82%

“…The obtained material delivers 269.5 mA h g −1 at 0.5 A g −1 and 76% capacity retention after 300 cycles. 33 In addition, our previous work showed that Cu-intercalated MnO 2 can undergo a displacement reaction, for which part of the preinserted Cu ions can be reduced to metallic Cu on the surface of the MnO 2 cathode upon the first discharging. Thus, the overall electrical conductivity can be improved, leading to enhanced rate performance in RAZIBs (121 mA h g −1 at 4 A g −1 ).…”

Section: Introductionmentioning

confidence: 99%

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Yttrium-preintercalated layered manganese oxide as a durable cathode for aqueous zinc-ion batteries

Lin

Huang

2023

Nanoscale

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Section: Nanoscale Papermentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Yttrium-preintercalated layered manganese oxide as a durable cathode for aqueous zinc-ion batteries

Lin

Huang

2023

Nanoscale

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“…[71] Copyright 2023, Wiley-VCH GmbH. [72] Copyright 2022, Elsevier. b) Schematic representation of discharge charge storage mechanism of the MnO 2 -Zn ion battery in 1 m ZnSO 4 and 1 m MnSO 4 electrolyte.…”

Section: Phase Transformationmentioning

confidence: 99%

Insight on the Energy Storage Mechanism and Kinetic Dynamic of Manganese Oxide‐Based Aqueous Zinc‐Ion Batteries

Cui

Zhang

et al. 2023

Adv Materials Technologies

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Manganese oxide‐based (MO‐based) aqueous zinc ion batteries (AZIBs) are of great interest due to their high capacity, low cost, environmental friendliness, and low toxicity. However, to achieve commercialization of MO‐based AZIB, there are some issues mainly focused on cycling stability and capacity decay until now. The complexity of the energy storage mechanism and the physical and chemical properties of the MO itself are both hindering factors. Therefore, this review classifies and summarizes the energy storage mechanisms of MO‐based cathodes and hopes to guide the synthesis of MO‐based materials with excellent energy storage performance. And the kinetic assessment methods involve in the study of the MO‐based AZIB energy storage mechanism are categorized and highlighted. Moreover, the ideas of the current mechanisms mentioned are comprehensively discussed based on the advanced kinetic dynamics analyzing methods. In the last part of the review, a perspective outlook for the subsequent development and direction of MO‐based AZIB is made. This review will provide a guiding light for obtaining a high‐performance, commercially viable MO‐based AZIB.

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“…Furthermore, present issues that arise during cycling of MnO 2 materials have been highlighted, such as the dissolution of the host material and the occurrence of irreversible reactions. To overcome such issues, the pre-intercalation of electrode materials with metal ions and water molecules has been explored to stabilize the inner structures ( Wang et al, 2019 ; Zhou et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Electrochemically stable tunnel-type α-MnO2-based cathode materials for rechargeable aqueous zinc-ion batteries

Luna

Al-Sulaiti

Ahmad³

et al. 2023

Front. Chem.

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The purpose of this study is the synthesis of α-MnO2-based cathode materials for rechargeable aqueous zinc ion batteries by hydrothermal method using KMnO4 and MnSO4 as starting materials. The aim is to improve the understanding of Zn2+ insertion/de-insertion mechanisms. The as-prepared solid compounds were characterized by spectroscopy and microscopy techniques. X-ray diffraction showed that the hydrothermal reaction forms α-MnO2 and Ce4+-inserted MnO2 structures. Raman spectroscopy confirmed the formation of α-MnO2 with hexagonal MnO2 and Ce-MnO2 structures. Scanning electron microscopy (SEM) confirmed the formation of nanostructured MnO2 (nanofibers) and Ce-MnO2 (nanorods). The electrochemical performance of MnO2 was evaluated using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) tests in half-cells. CV results showed the reversible insertion/de-insertion of Zn2+ ions in MnO2 and Ce-MnO2. GCD cycling tests of MnO2 and Ce-MnO2 at 2500 mA/g demonstrated an impressive electrochemical performance, excellent cycling stability throughout 500 cycles, and high rate capability. The excellent electrochemical performance and the good cycling stability of MnO2 and Ce-MnO2 nanostructures by simple method makes them promising cathode materials for aqueous rechargeable zinc-ion batteries.

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Dual metal ions and water molecular pre-intercalated δ-MnO2 spherical microflowers for aqueous zinc ion batteries

Cited by 49 publications

References 57 publications

Yttrium-preintercalated layered manganese oxide as a durable cathode for aqueous zinc-ion batteries

Yttrium-preintercalated layered manganese oxide as a durable cathode for aqueous zinc-ion batteries

Insight on the Energy Storage Mechanism and Kinetic Dynamic of Manganese Oxide‐Based Aqueous Zinc‐Ion Batteries

Electrochemically stable tunnel-type α-MnO2-based cathode materials for rechargeable aqueous zinc-ion batteries

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