Boosting High-Rate Zinc-Storage Performance by the Rational Design of Mn2O3 Nanoporous Architecture Cathode

Feng, Danyang; Gao, Tu‐Nan; Zhang, Ling; Guo, Bingkun; Song, Shuyan; Qiao, Zhen‐An; Dai, Sheng

doi:10.1007/s40820-019-0351-4

Cited by 63 publications

(50 citation statements)

References 51 publications

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“…Generally, the design of cathode architecture with efficient transport kinetics should follow the principle of minimum energy consumption, in this way, a continuous yet unobstructed electrical network, as well as a pore structure with low tortuosity of transport channel on the mesoscopic scale are necessary. [31,33,152] While on the microscale, the efficient enhancement of ion and electron transport kinetics can be realized through the structural engineering of cathode material. [104] Moreover, expecting the traditional slurry coating process, the freestanding electrode without adding binder, as well as the emerging 3D printed electrode are also promising technologies that show the great developing potential.…”

Section: Cathode Architecture With Efficient Transport Kineticsmentioning

confidence: 99%

“…Benefiting from this unique structure, they demonstrated such 3D cathode material enables retaining a high specific capacity of 262.9 and 121 mAh g −1 at the current density of 0.3 and 2 A g −1 , after 100 and 5000 cycles, respectively. Unlike the template method, Feng et al [31] proposed a ligand-assisted self-assembly strategy to successfully synthesize nanoporous Mn 2 O 3 architecture cathode materials. Notably, those transport kinetics dependent factors such as pore size, crystallinity state, and specific surface area can be effectively regulated by tuning the coordination degree between Mn 2+ and citric acid ligand.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…Unlike the template method, Feng et al. [ 31 ] proposed a ligand‐assisted self‐assembly strategy to successfully synthesize nanoporous Mn 2 O 3 architecture cathode materials. Notably, those transport kinetics dependent factors such as pore size, crystallinity state, and specific surface area can be effectively regulated by tuning the coordination degree between Mn 2+ and citric acid ligand.…”

Section: Structural Engineering For Cathode Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

Yong

Wang

et al. 2020

Advanced Energy Materials

243

144

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have also greatly aroused the positive exploration of alternative LIB technologies in recent years. [44] In contrast to the flammable organic electrolyte in LIBs, the aqueous one exhibits lower cost, higher safety, and especially the superior ionic conductivity, which is generally two orders of magnitude higher than that of the organic system. [9,10] All those unparalleled advantages would make the aqueous battery technologies to be the promising candidates in the future. [11] Rechargeable aqueous zinc-ion batteries (AZIBs), which is mainly composed of zinc metal anode, zinc salt-based aqueous electrolyte, and Zn 2+ host cathode, hold the great promise for energy storage applications in very recent years. [12,13] Compared with nonaqueous alkali-ion batteries, the use of cheap and high ambient stable zinc metal anode and inexpensive aqueous electrolyte with superior ionic conductivity (Figure 1a) would make such type of battery to be one of the most promising commercial candidates in the future market. [14-17] To date, extensive studies have been reported for AZIBs, and relating publications have dramatically increased especially in these two years, as shown in Figure 1b. However, the insufficient energy density seems to become the bottleneck that hinder their practical applications at current status. [4,5,18] Such issue could be ascribed to the narrow operating voltage of aqueous electrolyte, insufficient electrochemical performance of cathode materials, and Zn anode. [13,19,20] Besides, the influence of other components such as separator and collector also should be considered to some extent. [20,21] Among them, the studies of widening operating voltage of electrolyte and the optimization of other components only received less attention, which still remain at the early stage. [22,23] On the contrary, more attentions were paid to the electrochemical performance tuning of electrode materials. [24-26] Besides, considering the fixed operating voltage of Zn metal anode, the modification of cathode materials seems to provide more possibilities to effectively improve the energy density of AZIBs, owing to their rich material systems. [20,26,27] Under these considerations, the rational design of advanced cathodes is expected to be a preferential task to develop. Up to now, many types of materials have been exploited as cathode candidates and applied for AZIBs, however, those Rechargeable aqueous zinc-ion batteries (AZIBs) have attracted extensive attention and are considered to be promising energy storage devices, owing to their low cost, eco-friendliness, and high security. However, insufficient energy density has become the bottleneck for practical applications, which is greatly influenced by their cathodes and makes the exploration of high-performance cathodes still a great challenge. This review underscores the recent advances in the rational design of advanced cathodes for AZIBs. The review starts with a brief summary and evaluation of cathode material systems, as well as the introduction of proposed storage mechani...

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Section: Cathode Architecture With Efficient Transport Kineticsmentioning

confidence: 99%

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Section: Structural Engineering For Cathode Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

Yong

Wang

et al. 2020

Advanced Energy Materials

243

144

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“…These two aspects synergistically ensure the cycle stability and rate capability of the battery. Qiao et al [169] obtained high crystallinity of nano porous Mn 2 O 3 cathode with adjustable pore size. They adopted the ligand-assisted self-assembly process (Fig.…”

Section: Mn 2 Omentioning

confidence: 99%

Recent advances and perspectives on vanadium- and manganese-based cathode materials for aqueous zinc ion batteries

Liu

et al. 2021

Journal of Energy Chemistry

179

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Unveiling the Intricate Intercalation Mechanism in Manganese Sesquioxide as Positive Electrode in Aqueous Zn‐Metal Battery

Diemant

et al. 2021

Advanced Energy Materials

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In the family of Zn/manganese oxide batteries with mild aqueous electrolytes, cubic α‐Mn2O3 with bixbyite structure is rarely considered, because of the lack of the tunnel and/or layered structure that are usually believed to be indispensable for the incorporation of Zn ions. In this work, the charge storage mechanism of α‐Mn2O3 is systematically and comprehensively investigated. It is demonstrated that the electrochemically induced irreversible phase transition from α‐Mn2O3 to layered‐typed L‐ZnxMnO2, coupled with the dissolution of Mn2+ and OH− into the electrolyte, allows for the subsequent reversible de‐/intercalation of Zn2+. Moreover, it is proven that α‐Mn2O3 is not a host for H+. Instead, the MnO2 formed from L‐ZnxMnO2 and the Mn2+ in the electrolyte upon the initial charge is the host for H+. Based on this electrode mechanism, combined with fabricating hierarchically structured mesoporous α‐Mn2O3 microrod array material, an unprecedented rate capability with 103 mAh g−1 at 5.0 A g−1 as well as an appealing stability of 2000 cycles (at 2.0 A g−1) with a capacity decay of only ≈0.009% per‐cycle are obtained.

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Boosting High-Rate Zinc-Storage Performance by the Rational Design of Mn2O3 Nanoporous Architecture Cathode

Cited by 63 publications

References 51 publications

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

Recent advances and perspectives on vanadium- and manganese-based cathode materials for aqueous zinc ion batteries

Unveiling the Intricate Intercalation Mechanism in Manganese Sesquioxide as Positive Electrode in Aqueous Zn‐Metal Battery

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