Manganese buffer induced high-performance disordered MnVO cathodes in zinc batteries

Wei, Shiqiang; Chen, Shuangming; Su, Xiaozhi; Qi, Zheng‐Hang; Wang, Changda; Babu, Ganguli; Zhang, Pengjun; Zhu, Kehua; Cao, Yong; He, Qun; Cao, Dengfeng; Guo, Xueyi; Wen, Wen; Wu, Xiaojun; Ajayan, Pulickel M.; Li, Song

doi:10.1039/d1ee00590a

Cited by 67 publications

(38 citation statements)

References 41 publications

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“…[ 29 ] Moreover, it is almost impossible for the solvated Zn 2+ to be cointercalated with anions and solvents because the radius of the solvated shell is much larger than the interlayer spacing of most cathode materials. [ 99–101 ] Therefore, the organic electrolyte system solvated Zn 2+ must undergo a desolvation process on the surface of electrodes, while in the aqueous electrolyte solvated Zn 2+ may directly intercalate in the cathode material resulting in a high capacity and rate performance. [ 102 ] Thus, organic electrolytes, the surface of the cathodes exhibits a higher desolvation energy penalty even several times higher than that of the aqueous electrolytes.…”

Section: Organic Electrolytes For Zibsmentioning

confidence: 99%

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

et al. 2021

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Designing high performance electrolyte is an efficient strategy to circumvent these problems. As one of the most important components, electrolytes provide the basic operating environment to guarantee the transmission of the Zn 2+ between the two electrodes during the charge-discharge processes, affect the Zn 2+ /Zn plating/ stripping on the anode and deciding the electrochemically stable potential windows. [12] Since the utilization of alkaline electrolytes in batteries in earlier studies, Zn|KOH|MnO 2 batteries became a hot topic. [13] However, the using of an alkaline electrolyte always leads to the growth of Zn dendrites and the corrosion of the anode, resulting in rapid capacity fading. [14][15][16] Until 1986, the replacement of corrosive alkaline electrolyte systems by neutral aqueous electrolytes greatly improved the performance and safety of ZIBs. [17] Although the aqueous electrolytes alleviated the corrosion of the Zn electrode in some extent, the problems related to the growth of dendrites and the dissolution of the cathode, especially the limited electrochemical stability window (≈1.23 V) still are the challenge in the application of ZIBs. [18][19][20] The aqueous electrolytes of ZIBs often suffer from the water splitting process, including hydrogen evolution reaction and oxygen evolution reaction. [21][22][23] Therefore, in order to overcome the problems mentioned above, "beyond aqueous" electrolytes for ZIBs have attracted extensive attention in recent years. [24][25][26] At present, the "beyond aqueous" electrolytes for ZIBs have been reported mainly include liquid organic electrolytes and solid electrolytes. Zn anode in the organic electrolytes have high thermodynamic stability, avoiding the appearance of passivation products inevitably generated in traditional aqueous solution, i.e., ZnO and Zn(OH) 4 −2. [27] Solid-state electrolytes have sufficient mechanical strength to inhibit the growth of dendrites. [28] Moreover, the "beyond aqueous" electrolytes without water fundamentally avoid the decomposition of water and the formation of side products related to water. Compared with aqueous electrolytes, the "beyond aqueous" electrolytes exhibit a wide electrochemical stability window (Figure 1) and excellent thermodynamic stability of Zn anode leading to Zn plating/ stripping high reversibility with higher Coulombic efficiencies (CEs). [29] Although significant advances have been made in improving the electrochemical performance of the "beyond aqueous" electrolytes for ZIBs, several severe issues still exist, which largely prevent the development of "beyond aqueous" ZIBs. [30][31][32][33][34][35] The main issues of "beyond aqueous" electrolytes With the growing demands for large-scale energy storage, Zn-ion batteries (ZIBs) with distinct advantages, including resource abundance, low-cost, high-safety, and acceptable energy density, are considered as potential substitutes for Li-ion batteries. Although numerous efforts are devoted to design and develop high performance cathodes and aqueous electrolyt...

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Section: Organic Electrolytes For Zibsmentioning

confidence: 99%

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

et al. 2021

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“…Currently, there are various reports on cathode active materials for aqueous ZIBs in terms of an enhanced theoretical specific capacity. [54][55][56] Regarding energy density, however, only specific capacity is insufficient, and studies on high-voltage cathodes also should be performed. Meanwhile, classic cathode materials with only Zn 2 + intercalation reactions exhibit limited working potentials, and cathode materials that can stably accommodate charge transfer carriers in a high-voltage region should be further developed.…”

Section: Cathode Designs For High Voltage Zinc-ion Batteriesmentioning

confidence: 99%

“…Currently, there are various reports on cathode active materials for aqueous ZIBs in terms of an enhanced theoretical specific capacity [54–56] . Regarding energy density, however, only specific capacity is insufficient, and studies on high‐voltage cathodes also should be performed.…”

Section: Cathode Designs For High Voltage Zinc‐ion Batteriesmentioning

confidence: 99%

Toward High Energy Density Aqueous Zinc‐Ion Batteries: Recent Progress and Future Perspectives

Lee

Hwang

Song

et al. 2022

Batteries & Supercaps

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Aqueous zinc-ion batteries (ZIBs) are promising next-generation battery system which can mitigate the prevailing issues on the conventional lithium-ion batteries. However, insufficient energy density with low operating voltage prevents the practical utilization of the aqueous system. Notably, aqueous ZIBs suffer from electrolyte decomposition due to its narrow electrochemical stability window (ESW) for 1.23 V. Also, studies on cathode active materials that store charge at an elevated voltage region is still in the initial stage. In this perspective, we cover the recent strategies for developing high-voltage aqueous ZIBs. First, electrolyte designs for expanding the ESW of an aqueous electrolyte are introduced based on their characterization, materials, and working mechanisms. Next, we propose the cathode active materials with high-working voltage. Furthermore, studies on zinc anodes are also briefly presented. Lastly, we summarize the as-reported strategies and provide insight for developing future ZIBs.

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“…At present, a variety of vanadium oxides with rich redox property, high theoretical specific capacity and open framework structures have spawn wide research interest as cathode materials for secondary ZIBs systems [8] . For example, Wei et al [9] . synthesized spinel‐type MnV 2 O 4 (MnVO) via a sol‐gel solution.…”

Section: Introductionmentioning

confidence: 99%

Improved Reversible Zinc Storage Achieved in a Constitutionally Crystalline‐Stable Mn(VO₃)₂ Nanobelts Cathode

Zhang

et al. 2022

Chemistry A European J

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Rechargeable zinc-ion batteries (ZIBs) are potential for grid-scale applications owing to their safety, low price, and available sources. The development of ZIBs cathode with high specific capacity, wide operating voltage window and stable cyclability is urgently needed in next-generation commercial batteries. Herein, we report a structurally crystalline-stable Mn(VO 3 ) 2 nanobelts cathode for ZIBs prepared via a facile hydrothermal method. The as-synthesized Mn(VO 3 ) 2 exhibited high specific capacity of 350 mAh g À 1 at 0.1 A g À 1 , and maintained a capacity retention of 92 % after 10,000 cycles at 2 A g À 1 . It also showed good rate performance and obtained a reversible capacity of up to 200 mAh g À 1 after 600 cycles at 0.2 A g À 1 under À 20 °C. The electrochemical tests suggest that Mn(VO 3 ) 2 nanobelts impart fast Zn 2 + ions migration, and the introduction of manganese atoms help make the structures more indestructible, leading to a good rate performance and prolonged cycle lifespan.

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Manganese buffer induced high-performance disordered MnVO cathodes in zinc batteries

Abstract: Buffer reactions can forwardly boycott the changes induced by external causes. Here, we demonstrate a significant buffer role of tiny Mn in a self-optimized cathode for aqueous Zn-ion battery. Our...

Cited by 67 publications

References 41 publications

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

Toward High Energy Density Aqueous Zinc‐Ion Batteries: Recent Progress and Future Perspectives

Improved Reversible Zinc Storage Achieved in a Constitutionally Crystalline‐Stable Mn(VO₃)₂ Nanobelts Cathode

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Manganese buffer induced high-performance disordered MnVO cathodes in zinc batteries

Abstract: Buffer reactions can forwardly boycott the changes induced by external causes. Here, we demonstrate a significant buffer role of tiny Mn in a self-optimized cathode for aqueous Zn-ion battery. Our...

Cited by 67 publications

References 41 publications

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

Recent Advances in Electrolytes for “Beyond Aqueous” Zinc‐Ion Batteries

Toward High Energy Density Aqueous Zinc‐Ion Batteries: Recent Progress and Future Perspectives

Improved Reversible Zinc Storage Achieved in a Constitutionally Crystalline‐Stable Mn(VO3)2 Nanobelts Cathode

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Improved Reversible Zinc Storage Achieved in a Constitutionally Crystalline‐Stable Mn(VO₃)₂ Nanobelts Cathode