K<sup>+</sup> pre-intercalated manganese dioxide with enhanced Zn<sup>2+</sup> diffusion for high rate and durable aqueous zinc-ion batteries

Liu, Guoxue; Huang, Huawen; Bi, Ran; Xiao, Xue; Ma, Tianyi; Zhang, Lei

doi:10.1039/c9ta08049j

Cited by 159 publications

(134 citation statements)

References 54 publications

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Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

“…Liu et al reported a tunnel‐structure α‐MnO 2 with high preintercalated K + content (α‐K 0.19 MnO 2 ) as a superior cathode for ZIB. [ 82 ] The tunnel structure was shown to have transformed into layer structure after cycling. As such, the preintercalated K + were introduced into the layer space as pillars which could help to stabilize the layer structures.…”

Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

“…[ 81 ] Liu and co‐workers synthesized a tunnel‐structured MnO 2 nanotube with a high preintercalated K + content by a self‐sacrificial template method, which involved a neutral hydrothermal process to synthesize δ‐MnO 2 nanotubes using carbon nanofiber as both template and reactant, and then transformed into α‐MnO 2 nanotubes via an annealing process. [ 82 ] During the neutral hydrothermal process, the concentration of H + is low, which does affect the K + intercalation. This phenomenon is beneficial to the insertion of K + into the MnO 2 host.…”

Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

“…Liu et al demonstrated K + cations preintercalated α‐MnO 2 as a good cathode for Zinc ions storage. [ 82 ] During electrochemical tests, the water‐solvated H + first intercalated into α‐MnO 2 followed by the insertion of Zn 2+ which transformed MnO 2 from a tunnel structure into a layer structure. Meantime, the preintercalated K cations rearranged to be exist in the layer spacing which functioned as pillars to strengthen the layered structures and enabled a reversible H + and Zn 2+ diffusion for the insertion/extraction process.…”

Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

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Defect Engineering in Manganese‐Based Oxides for Aqueous Rechargeable Zinc‐Ion Batteries: A Review

Xiong

Zhang

Lee

et al. 2020

Advanced Energy Materials

287

150

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The development of advanced cathode materials for aqueous the zinc ion battery (ZIB) represents a crucial step toward building future large‐scale green energy conversion and storage systems. Recently, significant progress has been achieved in the development of manganese‐based oxides for ZIB via defect engineering, whereby the intrinsic capacity and energy density have been enhanced. In this review, an overview of the recent progress in the defect engineering of manganese‐based oxides for aqueous ZIBs is summarized in the following order: 1) the structures and properties of the commonly used manganese‐based oxides, 2) the classification of the various types of defect engineering commonly reported, 3) the various strategies used to create defects in materials, and 4) the effects of the various types of defect engineering on the electrochemical performance of manganese‐based oxides. Finally, a perspective on the defect engineering of manganese‐based oxides is proposed to further enhance their electrochemical performance as a ZIB cathode.

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Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

Section: Defect Engineering On Manganese‐based Oxidesmentioning

confidence: 99%

See 2 more Smart Citations

Defect Engineering in Manganese‐Based Oxides for Aqueous Rechargeable Zinc‐Ion Batteries: A Review

Xiong

Zhang

Lee

et al. 2020

Advanced Energy Materials

287

150

View full text Add to dashboard Cite

show abstract

“…[ 17 ] Liu et al have reported that the structural stability can be improved by pre‐intercalated K + into the tunnel structure α‐MnO 2 . [ 18 ] Although the cycling performance was improved to a certain degree, the structure still undergoes an unstable transformation (i.e., transformation into layered structure δ‐MnO 2 ), when further intercalated in Zn 2+ . Therefore, structural stability is one of the key factors in the design of Zn‐HSCs electrode materials.…”

Section: Introductionmentioning

confidence: 99%

Zn²⁺ Pre‐Intercalation Stabilizes the Tunnel Structure of MnO₂ Nanowires and Enables Zinc‐Ion Hybrid Supercapacitor of Battery‐Level Energy Density

Chen

Jin

Kou

et al. 2020

Small

165

136

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Although there has been tremendous progress in exploring new configurations of zinc‐ion hybrid supercapacitors (Zn‐HSCs) recently, the much lower energy density, especially the much lower areal energy density compared with that of the rechargeable battery, is still the bottleneck, which is impeding their wide applications in wearable devices. Herein, the pre‐intercalation of Zn2+ which gives rise to a highly stable tunnel structure of ZnxMnO2 in nanowire form that are grown on flexible carbon cloth with a disruptively large mass loading of 12 mg cm−2 is reported. More interestingly, the ZnxMnO2 nanowires of tunnel structure enable an ultrahigh areal energy density and power density, when they are employed as the cathode in Zn‐HSCs. The achieved areal capacitance of up to 1745.8 mF cm−2 at 2 mA cm−2, and the remarkable areal energy density of 969.9 µWh cm−2 are comparable favorably with those of Zn‐ion batteries. When integrated into a quasi‐solid‐state device, they also endow outstanding mechanical flexibility. The truly battery‐level Zn‐HSCs are timely in filling up of the battery‐supercapacitor gap, and promise applications in the new generation flexible and wearable devices.

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Interlayer Engineering of Molybdenum Trioxide toward High‐Capacity and Stable Sodium Ion Half/Full Batteries

Wang

Ang

Yang

et al. 2020

Adv Funct Materials

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Orthorhombic molybdenum trioxide (MoO3) is one of the most promising anode materials for sodium‐ion batteries because of its rich chemistry associated with multiple valence states and intriguing layered structure. However, MoO3 still suffers from the low rate capability and poor cycle induced by pulverization during de/sodiation. An ingenious two‐step synthesis strategy to fine tune the layer structure of MoO3 targeting stable and fast sodium ionic diffusion channels is reported here. By integrating partially reduction and organic molecule intercalation methodologies, the interlayer spacing of MoO3 is remarkably enlarged to 10.40 Å and the layer structural integration are reinforced by dimercapto groups of bismuththiol molecules. Comprehensive characterizations and density functional theory calculations prove that the intercalated bismuththiol (DMcT) molecules substantially enhanced electronic conductivity and effectively shield the electrostatic interaction between Na+ and the MoO3 host by conjugated double bond, resulting in improved Na+ insertion/extraction kinetics. Benefiting from these features, the newly devised layered MoO3 electrode achieves excellent long‐term cycling stability and outstanding rate performance. These achievements are of vital significance for the preparation of sodium‐ion battery anode materials with high‐rate capability and long cycling life using intercalation chemistry.

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K⁺ pre-intercalated manganese dioxide with enhanced Zn²⁺ diffusion for high rate and durable aqueous zinc-ion batteries

Abstract: α-K0.19MnO2 nanotubes with high K+ content as cathodes for zinc-ion batteries show high capacity, excellent rate capability and cycling stability.

Cited by 159 publications

References 54 publications

Defect Engineering in Manganese‐Based Oxides for Aqueous Rechargeable Zinc‐Ion Batteries: A Review

Defect Engineering in Manganese‐Based Oxides for Aqueous Rechargeable Zinc‐Ion Batteries: A Review

Zn²⁺ Pre‐Intercalation Stabilizes the Tunnel Structure of MnO₂ Nanowires and Enables Zinc‐Ion Hybrid Supercapacitor of Battery‐Level Energy Density

Interlayer Engineering of Molybdenum Trioxide toward High‐Capacity and Stable Sodium Ion Half/Full Batteries

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K+ pre-intercalated manganese dioxide with enhanced Zn2+ diffusion for high rate and durable aqueous zinc-ion batteries

Abstract: α-K0.19MnO2 nanotubes with high K+ content as cathodes for zinc-ion batteries show high capacity, excellent rate capability and cycling stability.

Cited by 159 publications

References 54 publications

Defect Engineering in Manganese‐Based Oxides for Aqueous Rechargeable Zinc‐Ion Batteries: A Review

Defect Engineering in Manganese‐Based Oxides for Aqueous Rechargeable Zinc‐Ion Batteries: A Review

Zn2+ Pre‐Intercalation Stabilizes the Tunnel Structure of MnO2 Nanowires and Enables Zinc‐Ion Hybrid Supercapacitor of Battery‐Level Energy Density

Interlayer Engineering of Molybdenum Trioxide toward High‐Capacity and Stable Sodium Ion Half/Full Batteries

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Product

Resources

About

K⁺ pre-intercalated manganese dioxide with enhanced Zn²⁺ diffusion for high rate and durable aqueous zinc-ion batteries

Zn²⁺ Pre‐Intercalation Stabilizes the Tunnel Structure of MnO₂ Nanowires and Enables Zinc‐Ion Hybrid Supercapacitor of Battery‐Level Energy Density