Cryptomelane-Type KMn8O16 as Potential Cathode Material — for Aqueous Zinc Ion Battery

Cui, Jiajie; Wu, Xianwen; Yang, Sinian; Li, Chuanchang; Tang, Fang; Chen, Jian; Chen, Ying; Xiang, Yanhong; He, Zeqiang

doi:10.3389/fchem.2018.00352

Cited by 57 publications

(28 citation statements)

References 32 publications

(33 reference statements)

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“…[ 28,29 ] Other than these common MnO 2 polymorphs, other manganese‐based oxides, such as MnO, Mn 2 O 3 , Mn 3 O 4 , LiMn 2 O 4 , KMn 8 O 16 , Na 2 Mn 3 O 7 , ZnMn 2 O 4 , and MgMn 2 O 4 have been explored as potential cathode materials for ZIB. [ 46–52 ] The reaction mechanisms for these manganese‐based oxides are summarized in Figure 3 . Three main mechanisms are reported for manganese‐based oxide, namely 1) Zn 2+ insertion/extraction, [ 53–55 ] 2) chemical conversion reaction, [ 38 ] and 3) H + /Zn 2+ insertion/extraction.…”

Section: Manganese‐based Oxides and Energy Storage Mechanismsmentioning

confidence: 99%

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: Manganese‐based Oxides and Energy Storage Mechanismsmentioning

confidence: 99%

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 specific capacity maintains 92% after 1000 cycles (Figure b). Generally, using the hybrid aqueous electrolyte (Na 2 SO 4 , MnSO 4 , and ZnSO 4 ) could enhance the electrochemical performance of the alkali manganese oxide, including LiMn 2 O 4 , KMn 8 O 16 , and K 0.224 MnO 1.947 ·0.887H 2 O …”

Section: Manganese‐based Cathodesmentioning

confidence: 99%

Recent Advances and Prospects of Cathode Materials for Rechargeable Aqueous Zinc‐Ion Batteries

Chen

Mai

2019

Adv Materials Inter

200

124

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attention. [9][10][11] AZIBs are considered as one of the most ideal candidates for largescale energy storage owing to their following advantages:i) The excellent properties of zinc: According the data in Table 1, the abundance of zinc in the earth's crust is 79 ppm, and ranks fourth in the world metal production, so zinc has a low market price. Zn metal anode has good electrical conductivity (5.91 µΩ cm), high volumetric energy density (5851 mAh cm −3 ), high theoretical capacity (819 mAh g −1 ), and relatively low redox potential (−0.76 V vs standard hydrogen electrode) which is more suitable in aqueous solution. In addition, multivalent zinc ion can transfer two electrons to facilitate more energy storage than the univalent batteries. [12] At the same time, the ionic radius of zinc ions is 0.74 Å, which is smaller than that of sodium ions (1.02 Å) and close to that of lithium ions (0.69 Å). Moreover, zinc is the essential trace element for human body. [9] In brief, Zn has the superiorities of low cost, low-toxicity, abundant resource, easily recycle, and environmental friendliness.ii) The higher ionic conductivity and safety of aqueous electrolytes: The aqueous electrolytes offer two orders of higher magnitude ionic conductivities (≈1 S cm −1 ) than that of organic electrolytes (≈10 −2 -10 −3 S cm −1 ), so aqueous battery usually has higher power density. [3,13] Meanwhile, the organic electrolytes are usually toxic and flammable, while the aqueous electrolytes are nontoxic and safe, which can mitigate the environmental disruption and recycling costs. iii) The facile assembly process: AZIBs can be assembled in the air condition owing to the stability of zinc anode and aqueous electrolyte. Compared with the batteries assembled in the inert-gas glove box, the manufacturing costs of ZIBs are greatly reduced. The facile manufacture and recycling of AZIBs is an important advantage in the large-scale storage applications.Combining the above advantages, low-cost, safe, and green next-generation AZIBs are suitable specifically for large-scale stationary storage applications. So far, AZIBs are still at the infancy stage. The related researches mainly focused on cathode materials. We count the publication numbers of the reported cathodes for AZIBs in the period from 2012 to February 2019 (1, Supporting Information). As illustrated in Figure 1a, the number of annual publications on cathodes for AZIBs continues to increase rapidly in the recent years. However, in the preliminary stage, Electrochemical energy storage devices will definitely play a vital role in the future energy landscape of the world. The innovation of electrode materials is a key task for the breakthrough of present bottleneck faced by electrochemical energy storage devices. Aqueous zinc-ion batteries (AZIBs) are gaining rapid attention, and they offer tremendous opportunities to explore the low-cost, safe, and next-generation green batteries for large-scale stationary storage applications. In this review, the authors aim to give a comprehensive overview ...

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“…[4][5][6][7] Therefore, the multivalent ions-based rechargeable batteries, such as Mg 2 + , Ca 2 + , Zn 2 + , and Al 3 + -based ones, have drawn decent scientific interests with the burning desire to explore alternative energy storage systems. [14] A few suitable ZIBs cathode materials to intercalate Zn 2 + can be classified into four categories: (1) Mn-based cathode materials (such as, α, β, γ-MnO 2 , Mn 2 O 3 ), [15][16][17][18] (2) V-based cathode materials (for example, M x V 2 O 5 , M x V 3 O 7 , and V 2 O 5 ), [4,12,19] (3) Prussian blue analogs-based cathodes: for example, MFe (CN) 6 (M = Na, Zn, Cu, Mn), [20][21][22][23] and (4) other cathode materials. [11][12][13] Meanwhile, it is of great importance to reduce the environment pollution and the cost by using aqueous electrolyte, but the high polarization, the narrow voltage range of Zn 2 + and the water splitting in the aqueous battery system limit many cathode materials for the intercalation of Zn 2 + .…”

Section: Introductionmentioning

confidence: 99%

Mn₃O₄@NC Composite Nanorods as a Cathode for Rechargeable Aqueous Zn‐Ion Batteries

Sun

Wang

et al. 2019

ChemElectroChem

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Rechargeable aqueous zinc-ion batteries (ZIBs) have attracted escalating attention recently, owing to their energy density, decreasing cost, advanced safety, and environmental benignity. Nevertheless, ZIBs still lack suitable cathode materials with stable cycling performance, owing to the high polarization of zinc ion. Therefore, developing candidate materials with excellent properties remains a great challenge. Herein, we successfully synthesize a novel Mn 3 O 4 @N-doped carbon matrix composite nanorods (Mn 3 O 4 @NC Nrs) by using MnOOH nano-rods (the self-sacrifice templates) and polypyrrole (carbon and nitrogen source). Benefiting from the N-doped carbon shell and the synergetic effect of Zn 2 + and Mn 2 + in the electrolyte, the Mn 3 O 4 @NC Nrs show superior cycling stability and long cycling features for ZIBs. Specifically, the zinc cell conducts a high reversible capacity of 280 mAh g À 1 at 100 mA g À 1 and retains a high reversible capacity of 97 mAh g À 1 at 1000 mA g À 1 after 700 cycles. In addition, the work provides a new approach to fabricate long-term and high-rate capability cathodes for ZIBs.[a] M.

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Cryptomelane-Type KMn8O16 as Potential Cathode Material — for Aqueous Zinc Ion Battery

Cited by 57 publications

References 32 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

Recent Advances and Prospects of Cathode Materials for Rechargeable Aqueous Zinc‐Ion Batteries

Mn₃O₄@NC Composite Nanorods as a Cathode for Rechargeable Aqueous Zn‐Ion Batteries

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Cryptomelane-Type KMn8O16 as Potential Cathode Material — for Aqueous Zinc Ion Battery

Cited by 57 publications

References 32 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

Recent Advances and Prospects of Cathode Materials for Rechargeable Aqueous Zinc‐Ion Batteries

Mn3O4@NC Composite Nanorods as a Cathode for Rechargeable Aqueous Zn‐Ion Batteries

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Mn₃O₄@NC Composite Nanorods as a Cathode for Rechargeable Aqueous Zn‐Ion Batteries