Oxygen-Deficient β-MnO2@Graphene Oxide Cathode for High-Rate and Long-Life Aqueous Zinc Ion Batteries

Shihua, Ding; Zhang, Mingzheng; Qin, Runzhi; Fang, Jianjun; Ren, Hengyu; Yi, Haiqiong; Liu, Lele; Zhao, Wenguang; Yang, Li; Lu, Yong; Li, Shunning; Zhao, Qinghe; Pan, Feng

doi:10.1007/s40820-021-00691-7

Cited by 98 publications

(73 citation statements)

References 46 publications

(54 reference statements)

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“…Following this equation: [ 47 ]

\begin{matrix} D_{i o n s} = \frac{4}{π τ} {(\frac{m_{B} V_{M}}{M_{B} V})}^{2} {(\frac{Δ E_{S}}{Δ E_{τ}})}^{2} \end{matrix}

where τ is the duration time of the current pulse, m B is the mass of the active material, M B is the molecular weight (g mol −1 ), V m is the molar volume (cm 3 mol −1 ), A is the area of active material, ΔE s is the steady‐state potential change, and ΔE τ is the potential change during the galvanostatic pulse process. As shown in Figure 4f, the D ions of discharge and charge states are calculated to be about 10 –9 –10 –12 cm 2 s –1 , which are higher than reported materials (α‐MnO 2 : [ 48 ] 10 –13 –10 –17 ; σ‐MnO 2 : [ 28 ] 10 –12 –10 –15 ; β‑MnO 2 @Graphene Oxide: [ 41 ] 10 –10 –10 –15 ; α‐K 0.19 MnO 2 : [ 30 ] 10 –10 –10 –14 cm 2 s –1 ). According to the analyses of b values, capacitance contribution ratios, EIS, and GITT, it is concluded that the ions diffusion kinetics are promoted by HB shielding effect after introducing NH 4 + into α‐MnO 2 .…”

Section: Resultsmentioning

confidence: 74%

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Sun

Zheng

Nian

et al. 2022

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Manganese oxides are highly desirable for the cathode of rechargeable aqueous zinc ion batteries (AZIBs) owing to their low cost and high abundance. However, the terrible structure stability of manganese oxide limits its practical application. Here, it is demonstrated that the hydrogen‐bond shielding effect can improve the electrochemical performance of manganese oxide. Briefly, (NH4)0.125MnO2 (NHMO) is prepared by introducing NH4+ into the tunnel structure of α‐MnO2. The robust hydrogen bonds between N‐H and host O atoms can stabilize the lattice structure of α‐MnO2 and suppress the dissolution of Mn element. More importantly, it can also accelerate ions mobility kinetics by weakening the electrostatic interaction of host O atoms. Thus, the fabricated Zn||NHMO battery possesses impressive cycling life (99.5% of capacity retention over 10 000 cycles) and rate capability (109 mA h g–1 of discharge capacity at 6000 mA g–1). Comprehensive analyses reveal the essences of interfacial charge and bulk ions transfer. This finding opens new opportunities for the development of high‐performance AZIBs.

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“…Following this equation: [ 47 ]

\begin{matrix} D_{i o n s} = \frac{4}{π τ} {(\frac{m_{B} V_{M}}{M_{B} V})}^{2} {(\frac{Δ E_{S}}{Δ E_{τ}})}^{2} \end{matrix}

Section: Resultsmentioning

confidence: 74%

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Sun

Zheng

Nian

et al. 2022

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“…The electrochemical performance MnO@N‐doped graphene scrolls was greatly enhanced compared to pure MnO, delivering a high capacity of 269 mAh g −1 % and 98% capacity retention at 0.5 A g −1 after 300 cycles. [ 64 ] Moreover, graphene‐wrapped cathodes including oxygen‐deficient β‐MnO 2 , [ 65 ] MOFs‐derived MnO/C, [ 66 ] defect‐rich V 6 O 13−δ , [ 67 ] H 2 V 3 O 8 nanowire, [ 68 ] CuV 2 O 6 nanobelt, [ 69 ] and H 11 Al 2 V 6 O 23.2 [ 70 ] were also obtained via hydrothermal reactions. Solid‐phase method via freeze‐drying and calcination was also adopted for graphene layers.…”

Section: Graphenementioning

confidence: 99%

Constructing Advanced Aqueous Zinc‐Ion Batteries with 2D Carbon‐Rich Materials

Xiong

Jin

Liu

2022

Adv Energy and Sustain Res

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As a promising electrochemical energy storage system (EESS), aqueous zinc‐ion batteries (AZIBs) hold the potential to achieve energy storage with low‐cost and nonpollution merits. However, the intrinsic defects of these systems block their further development severely, including dendrite growth, structural deterioration, parasitic reactions, and sluggish charge/discharge kinetics. Herein, the application of 2D carbon‐rich materials against the drawbacks of AZIBs is introduced. Advantages of each representative 2D carbon‐rich material (i.e., graphdiyne, graphene, 2D covalent organic frameworks, 2D metal organic frameworks, and 2D conductive polymers) are thoroughly discussed, along with recent progress of AZIB cathodes, anodes, separators, and electrolytes utilizing 2D carbon‐rich materials. Finally, the features of various 2D carbon‐rich materials are summarized and several perspectives on optimization of 2D carbon‐rich materials, development of characterization techniques, and the practical use of AZIBs in the future are given.

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“…GO‐coated MnO 2 surfaces show complete uniform composite (Figure 6e,g). [ 119 ] More oxygen vacancies (VO) were created based on optimization and combinatorial design engineering, and the MnO 2 @GO composite has interlayer distances of 2.40 and 3.13 Å (Figure 6f). Mn dissolution is inhibited by the encapsulated GO, while the electrochemical kinetics is accelerated by the bulk VO.…”

Section: Interlayer Engineering Regulationsmentioning

confidence: 99%

Advances of Metal Oxide Composite Cathodes for Aqueous Zinc‐Ion Batteries

Kumankuma-Sarpong

Guo

2022

Adv Energy and Sustain Res

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Aqueous zinc-ion batteries (AZIBs) lately garner a lot of interest and are viewed as a promising energy storage technology due to their low cost, eco-friendliness, and exceptional safety. Crystal metal oxide cathode research has advanced significantly in recent years, making AZIBs a viable choice for low-cost grid storage applications. However, the readily available (Mn-and V-based oxides) electrode materials suffer from instability and low conductivity. As a consequence, extensive study efforts are dedicated into the development and evaluation of high-performance cathode systems. Herein, advanced composite cathodes with modified structures are reviewed in an attempt to increase capacity and cycle life. The Mn-and V-based composite framework with polymer template, graphene, and MXene induces electric conductivity, improved lattice spacing, and tunable characteristics, as well as possible benefits for overcoming the redox kinetics and stability constraints for AZIBs. As a result, rational modification of the metal oxides as well as the production of composites shows promise in solving problems and improving cathode performance in high-performance AZIBs.

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Oxygen-Deficient β-MnO2@Graphene Oxide Cathode for High-Rate and Long-Life Aqueous Zinc Ion Batteries

Cited by 98 publications

References 46 publications

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Constructing Advanced Aqueous Zinc‐Ion Batteries with 2D Carbon‐Rich Materials

Advances of Metal Oxide Composite Cathodes for Aqueous Zinc‐Ion Batteries

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