Voltage issue of aqueous rechargeable metal-ion batteries

Liu, Zhuoxin; Huang, Yan; Huang, Yang; Yang, Qi; Li, Xinliang; Huang, Zhaodong; Chen, Zhi

doi:10.1039/c9cs00131j

Cited by 605 publications

(381 citation statements)

References 463 publications

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“…As the cycle progresses, by the 10 th cycle, broad redox peaks at 0.7/0.3V and 0.5/1.0-1.6 V appear, completely agreeing with the electrochemical behavior of V 2 CT X MXene in the previous study. [11,[29][30][31] Meanwhile, these features that Figure 3. Characterization of phase and structure transition of V 2 CT X MXene during further cycling.…”

Section: Resultsmentioning

confidence: 99%

In Situ Electrochemical Synthesis of MXenes without Acid/Alkali Usage in/for an Aqueous Zinc Ion Battery

Yang

et al. 2020

Advanced Energy Materials

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170

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The traditional method to fabricate a MXene based energy storage device starts from etching MAX phase particles with dangerous acid/alkali etchants to MXenes, followed by device assembly. This is a multistep protocol and is not environmentally friendly. Herein, an all‐in‐one protocol is proposed to integrate synthesis and battery fabrication of MXene. By choosing a special F‐rich electrolyte, MAX V2AlC is directly exfoliated inside a battery and the obtained V2CTX MXene is in situ used to achieve an excellent battery performance. This is a one‐step process with all reactions inside the cell, avoiding any contamination to external environments. Through the lifetime, the device experiences three stages of exfoliation, electrode oxidation, and redox of V2O5. While the electrode is changing, the device can always be used as a battery and the performance is continuously enhanced. The resulting aqueous zinc ion battery achieves outstanding cycling stability (4000 cycles) and rate performance (97.5 mAh g−1 at 64 A g−1), distinct from all reported aqueous MXene‐based counterparts with pseudo‐capacitive properties, and outperforming most vanadium‐based zinc ion batteries with high capacity. This work sheds light on the green synthesis of MXenes, provides an all‐in‐one protocol for MXene devices, and extends MXenes’ application in the aqueous energy storage field.

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Section: Resultsmentioning

confidence: 99%

In Situ Electrochemical Synthesis of MXenes without Acid/Alkali Usage in/for an Aqueous Zinc Ion Battery

Yang

et al. 2020

Advanced Energy Materials

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170

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“…Although the applications of metallic current collectors in ZIBs have been well demonstrated, the selection of current collectors for potential commercial ZIBs should still be cautious, regarding their chemical/electrochemical stability, cost, environmental impact, and potential influence on side reactions (for example, catalyzing hydrogen evolution reactions). [267] In addition, the corrosion and dissolution of metallic current collectors may become severe in low-pH aqueous electrolytes or abused conditions. [268,269] Therefore, specific studies are still urgently needed to establish high performance and long-term stabile current collectors for ZIBs.…”

Section: Current Collectors For Zibsmentioning

confidence: 99%

Rechargeable Aqueous Zinc‐Ion Batteries with Mild Electrolytes: A Comprehensive Review

Kang

Cui

Zhang

et al. 2020

Batteries & Supercaps

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Prof. Jiang's research focuses on energy storage devices, including lithium, sodium, and zinc ion batteries, which are supported by NSFC and major basic research projects of Shandong natural science foundations. Figure 1. a) Diagram of potential-pH value (Pourbaix diagram) of Zn in aqueous solutions. Reproduced with permission from Ref. [25]. Copyright 2015, Wiley-VCH. b) Discharge mechanism of a ZnÀ MnO 2 alkaline battery depicting main side reactions on both electrodes. Reproduced with permission from Ref. [16]. Copyright 2004, American Chemical Society. c) In situ images of electro-plated zinc deposits in a 0.3 cm s À 1 flowing KOH aqueous electrolyte at deposition potential of À 2.55 V. The red parts highlight new Zn deposits growing during the time intervals. Reproduced with permission from Ref. [27].

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“…The covalence properties of M−O bond could be altered by four factors: transition metal ion coordination, polyhedral connectivity, inductive effects, and d ‐orbital splitting. From another perspective of reaction energy, the Nernst relationship indicates that the greater reaction energy change corresponds to more significant voltage as shown in equation 2: [33,34]

true V_{o c} = \frac{E_{o r i g i n a l e l e c t r o d e} + E_{m e t a l a n o d e} - E_{i n t e r c l a t e d e l e c t r o d e}}{z F}

…”

Section: Issues Facing the Layered Vanadium Oxides Cathode Materialsmentioning

confidence: 99%

Interlayer Doping in Layered Vanadium Oxides for Low‐cost Energy Storage: Sodium‐ion Batteries and Aqueous Zinc‐ion Batteries

et al. 2020

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Advantages concerns about abundant resources, low cost and high safety have promoted sodium‐ion batteries (SIBs) and aqueous zinc‐ion batteries (AZIBs) as the most promising candidates for next generation of low‐cost large‐scale energy storage. However, the state‐of‐the‐art cathode materials are far from meeting the commercial requirements. Considering the unique open framework, layered vanadium oxides have attracted wide attention due to the high energy density and power density, while they also face critical issues such as low stability and sluggish diffusion kinetics. The interlayer doping defects, as the most common method modulating layered materials, are believed to solve these problems which will be highlighted in this review. Firstly, the characteristics and current states of various vanadium oxides in SIBs and AZIBs are summarized. Then, the research efforts related to different types of interlayer doping defects, including ionic, molecular doping, etc., are discussed. Finally, it is pointed out that it is not enough to merely achieve satisfactory performances. Hence, some perspectives about the deep understanding and interrelationship are provided for the subsequent rational design of defective layered vanadium oxides for low‐cost energy storage systems.

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Voltage issue of aqueous rechargeable metal-ion batteries

Abstract: Working voltage substantially limits the practical applications of batteries. This review emphasizes on the voltage issue of aqueous metal-ion batteries.

Cited by 605 publications

References 463 publications

In Situ Electrochemical Synthesis of MXenes without Acid/Alkali Usage in/for an Aqueous Zinc Ion Battery

In Situ Electrochemical Synthesis of MXenes without Acid/Alkali Usage in/for an Aqueous Zinc Ion Battery

Rechargeable Aqueous Zinc‐Ion Batteries with Mild Electrolytes: A Comprehensive Review

Interlayer Doping in Layered Vanadium Oxides for Low‐cost Energy Storage: Sodium‐ion Batteries and Aqueous Zinc‐ion Batteries

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