Improving performance of zinc-manganese battery via efficient deposition/dissolution chemistry

Zhong, Zhipei; Li, Jinye; Li, Lanyan; Xi, Xiaoyi; Luo, Zhigao; Fang, Guozhao; Liang, Shuquan; Wang, Xianyou

doi:10.1016/j.ensm.2022.01.006

Cited by 50 publications

(25 citation statements)

References 41 publications

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“…The "dead Mn" induced capacity attenuation and even structure collapse occur in the deep cycling profiles (Figure 3d). [19,48,56,63,69,70] Consequently, the capacity fluctuation with a rapid increase and decay becomes rationalized due to pH evolution in near-neutral pH electrolytes.…”

Section: Convergence Is On the Waymentioning

confidence: 99%

“…For instance, the addition of Ac − can reduce the barrier for both the dissolution and deposition process. [43,69] PO 4 3− can act as a proton reservoir to maintain the pH value for reversible Mn 2+ /MnO 2 conversion. [18] Moreover, catalysts such as poly(vinylpyrrolidone) (PVP), [80] I 2 , [9,81] Br 2 , [82,83] and Ni 2+ [28] have been employed to boost the Mn 2+ /MnO 2 redox chemistry.…”

Section: Overall Conclusion and Suggestionsmentioning

confidence: 99%

“…[ 14,17,70,78,79 ] 3) Redox‐promoting additives : At present, the anionic chemistry was demonstrated as an effective method to achieve reversible Mn 2+ /MnO 2 conversion with high efficiency and without “dead Mn.” For instance, the addition of Ac − can reduce the barrier for both the dissolution and deposition process. [ 43,69 ] PO 4 3− can act as a proton reservoir to maintain the pH value for reversible Mn 2+ /MnO 2 conversion. [ 18 ] Moreover, catalysts such as poly(vinylpyrrolidone) (PVP), [ 80 ] I 2 , [ 9,81 ] Br 2 , [ 82,83 ] and Ni 2+[ 28 ] have been employed to boost the Mn 2+ /MnO 2 redox chemistry.…”

Section: Overall Conclusion and Suggestionsmentioning

confidence: 99%

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Protocol in Evaluating Capacity of Zn–Mn Aqueous Batteries: A Clue of pH

et al. 2023

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In the literature, Zn–Mn aqueous batteries (ZMABs) confront abnormal capacity behavior, such as capacity fluctuation and diverse “unprecedented performances.” Because of the electrolyte additive‐induced complexes, various charge/discharge behaviors associated with different mechanisms are being reported. However, the current performance assessment remains unregulated, and only the electrode or the electrolyte is considered. The lack of a comprehensive and impartial performance evaluation protocol for ZMABs hinders forward research and commercialization. Here, a pH clue (proton‐coupled reaction) to understand different mechanisms is proposed and the capacity contribution is normalized. Then, a series of performance metrics, including rated capacity (Cr) and electrolyte contribution ratio from Mn2+ (CfM), are systematically discussed based on diverse energy storage mechanisms. The relationship between Mn (II) ↔ Mn (III) ↔ Mn (IV) conversion chemistry and protons consumption/production is well‐established. Finally, the concrete design concepts of a tunable H+/Zn2+/Mn2+ storage system for customized application scenarios, opening the door for the next‐generation high‐safety and reliable energy storage system, are proposed.

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Section: Convergence Is On the Waymentioning

confidence: 99%

Section: Overall Conclusion and Suggestionsmentioning

confidence: 99%

Section: Overall Conclusion and Suggestionsmentioning

confidence: 99%

See 1 more Smart Citation

Protocol in Evaluating Capacity of Zn–Mn Aqueous Batteries: A Clue of pH

et al. 2023

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“…[17] To regulate the Mn 2+ /MnO 2 deposition/dissolution chemistry, NaAc is used as an additive in Zn-𝛿-MnO 2 battery to obtain excellent capacity (Figure 6e). [69] By designing a structure with three chambers and two membranes (Figure 6f), [70] Zhong et al used an H 2 SO 4 electrolyte on the cathode side of the MnO 2 , making the Mn 2+ /MnO 2 reaction more sufficient and easier and without affecting the zinc cathode at the same time. According to the studies reported above, the anions in the electrolyte, especially the Ac − , are of extraordinary importance for the development of a highly reversible Mn 2+ /MnO 2 deposition/dissolution mechanism.…”

Section: Dissolution/deposition Of Mnomentioning

confidence: 99%

“…[ 17 ] To regulate the Mn 2+ /MnO 2 deposition/dissolution chemistry, NaAc is used as an additive in Zn‐ δ ‐MnO 2 battery to obtain excellent capacity (Figure 6e). [ 69 ] By designing a structure with three chambers and two membranes (Figure 6f), [ 70 ] Zhong et al. used an H 2 SO 4 electrolyte on the cathode side of the MnO 2 , making the Mn 2+ /MnO 2 reaction more sufficient and easier and without affecting the zinc cathode at the same time.…”

Section: Energy Storage Mechanism Of Mo‐based Azibsmentioning

confidence: 99%

Insight on the Energy Storage Mechanism and Kinetic Dynamic of Manganese Oxide‐Based Aqueous Zinc‐Ion Batteries

Cui

Zhang

et al. 2023

Adv Materials Technologies

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Manganese oxide‐based (MO‐based) aqueous zinc ion batteries (AZIBs) are of great interest due to their high capacity, low cost, environmental friendliness, and low toxicity. However, to achieve commercialization of MO‐based AZIB, there are some issues mainly focused on cycling stability and capacity decay until now. The complexity of the energy storage mechanism and the physical and chemical properties of the MO itself are both hindering factors. Therefore, this review classifies and summarizes the energy storage mechanisms of MO‐based cathodes and hopes to guide the synthesis of MO‐based materials with excellent energy storage performance. And the kinetic assessment methods involve in the study of the MO‐based AZIB energy storage mechanism are categorized and highlighted. Moreover, the ideas of the current mechanisms mentioned are comprehensively discussed based on the advanced kinetic dynamics analyzing methods. In the last part of the review, a perspective outlook for the subsequent development and direction of MO‐based AZIB is made. This review will provide a guiding light for obtaining a high‐performance, commercially viable MO‐based AZIB.

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3D Printed Flexible Zinc Ion Micro‐Batteries with High Areal Capacity Toward Practical Application

Lu,

Wang,

et al. 2023

Adv Funct Materials

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Printed zinc ion micro‐batteries (PZIMBs) possess characteristics such as miniaturization, customizability, and affordability, making them highly promising for the field of flexible electronic devices. Nevertheless, the current development of PZIMBs is seriously hindered by their limited areal capacity. In this study, PZIMBs with a high areal capacity are conducted based on 3D printing technology by optimizing the material properties, electrode ink formulation, and printing parameters. The cathode material, polyvinylpyrrolidone‐induced ammonium vanadate (P‐NVO) nanobelt, exhibits a high capacity of 457.3 mAh g−1 at 0.1 mA g−1, along with good cycling performance and rate capability. The double‐network hydrogel electrolyte, composed of crosslinked polyacrylamide‐polyvinylpyrrolidone (PAM‐PVP hydrogel electrolyte), demonstrates excellent ionic conductivity (107.22 mS cm−1), high stretchability (970%), and viscosity. The constructed PZIMBs exhibit a high areal capacity of 4.02 mAh cm−2 at 0.5 mA cm−2, along with good mechanical flexibility. Moreover, through the integration of PZIMBs with pressure sensors, an interactive system is developed that resembles electronic skin, and this integration enables practical applications of wearable devices. This study presents a novel approach for fabricating PZIMBs with high areal capacity, thereby contributing to and propelling the advancement of flexible energy storage.

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Improving performance of zinc-manganese battery via efficient deposition/dissolution chemistry

Cited by 50 publications

References 41 publications

Protocol in Evaluating Capacity of Zn–Mn Aqueous Batteries: A Clue of pH

Protocol in Evaluating Capacity of Zn–Mn Aqueous Batteries: A Clue of pH

Insight on the Energy Storage Mechanism and Kinetic Dynamic of Manganese Oxide‐Based Aqueous Zinc‐Ion Batteries

3D Printed Flexible Zinc Ion Micro‐Batteries with High Areal Capacity Toward Practical Application

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