A review on solutions to overcome the structural transformation of manganese dioxide-based cathodes for aqueous rechargeable zinc ion batteries

Yadav, Priya; Kumari, Nisha; Kumar, Alok

doi:10.1016/j.jpowsour.2022.232385

“…At present, materials with more research on the cathode of ZIBs mainly include manganese-based, vanadium-based, Prussian blue, and some conductive organic materials. [73][74][75][76] Among them, manganese-based and vanadium-based oxides are the most widely studied cathode materials. Manganese-based oxides have high working voltage and high theoretical capacity for zinc storage.…”

Section: Cathodesmentioning

confidence: 99%

Recent advances in two-dimensional MXenes for zinc-ion batteries

Shen

¹

,

Lv

²

,

Chen

³

2023

Mater. Chem. Front.

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“…Although ZIBs offer wide‐ranging advantages, their use of an aqueous electrolyte leads to a lower electrochemical stability window, which in turn results in a lower operating voltage for ZIBs, thereby constraining the energy density of ZIBs. Accordingly, many investigators have worked to improve the specific capacity, stability of structure and operating potential of ZIBs cathode materials [14,18] . Notably, the energy density values of the recently developed ZIBs is comparable to existing batteries.…”

Section: Introductionmentioning

confidence: 99%

Improved Strategies for Separators in Zinc‐Ion Batteries

Li

¹

,

Jia

²

,

Cheng

³

et al. 2023

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The demand for energy storage is growing, and the disadvantages of lithium‐ion batteries are being explored to overcome them. Accordingly, aqueous zinc‐ion batteries (ZIBs) are developing very rapidly, owing to their high safety, environmental friendliness, high abundance of resources, and high cost performance. Over the last decade, ZIBs have made remarkable progress through extensive efforts in the field of electrode materials and through fundamental understanding of non‐electrode components, such as solid‐electrolyte interphase, electrolytes, separators, binders, and current collectors. In particular, the breakthrough in using separators on non‐electrode elements should not be overlooked as such separators have proven key to conferring ZIBs with high energy and power density. In this Review, recent progress in the development of separators in ZIBs is comprehensively summarized based on their functions and roles in ZIBs, including the modification of conventional separators and the development of novel separators. Finally, the prospects and future challenges of separators are also discussed to facilitate ZIBs development.

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“…3 Among the different options, aqueous zinc ion batteries (AZIBs) have been thoroughly investigated and found to be suitable as energy storage devices owing to their great benefits, such as cost-effectiveness, abundant resources of Zn, low Zn/Zn 2+ redox potential (about −0.76 V vs normal hydrogen electrode), exceptionally high theoretical capacity of the Zn anode (∼5855 mA h cm −3 ) and high ionic conductivity of the aqueous electrolyte (up to 1 S cm −1 ), resulting in the high energy and power density of ZIBs. 4–7…”

Section: Introductionmentioning

confidence: 99%

“…3 Among the different options, aqueous zinc ion batteries (AZIBs) have been thoroughly investigated and found to be suitable as energy storage devices owing to their great benefits, such as cost-effectiveness, abundant resources of Zn, low Zn/ Zn 2+ redox potential (about À0.76 V vs normal hydrogen electrode), exceptionally high theoretical capacity of the Zn anode (B5855 mA h cm À3 ) and high ionic conductivity of the aqueous electrolyte (up to 1 S cm À1 ), resulting in the high energy and power density of ZIBs. [4][5][6][7] Despite these excellent virtues, a decent cathode material is crucial to scale up ZIBs for commercialization. The existence of a high electrostatic repulsion between Zn 2+ ions is a major concern, which severely limits the range of cathode materials.…”

Section: Introductionmentioning

confidence: 99%

“…The formation of Mn 3+ is unstable in an octahedral symmetry due to the presence of a single electron in the e g orbital, resulting in structural instability owing to the Jahn-Teller effect, followed by rapid capacity decay of MnO 2 . 5,13,14 It was found that the pre-addition of MnSO 4 as an additive in the ZnSO 4 electrolyte enhanced the electrochemical performances by limiting the dissolution of active MnO 2 . 20 However, the exact reaction mechanism of MnO 2 -based cathodes is not yet completely understood.…”

Section: Introductionmentioning

confidence: 99%

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