The Current State of Aqueous Zn-Based Rechargeable Batteries

Deng, Yaping; Liang, Ruilin; Jiang, Gaopeng; Jiang, Yi; Yu, Aiping; Chen, Zhongwei

doi:10.1021/acsenergylett.0c00502

Cited by 315 publications

(184 citation statements)

References 118 publications

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“…Previous attempts on economically viable electrocatalysts primarily involve inorganic candidates, such as heteroatom-doped carbon materials, metal compounds or their composites 9,[14][15][16][17][18][19][20][21][22][23][24] . However, their electrocatalytic activity and stability are limited by dissolution or aggregation of inorganic components triggered by corrosion in highly concentrated alkaline electrolytes of oxygen free radicals emerged during battery cycling 3,25,26 .…”

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confidence: 99%

d-Orbital steered active sites through ligand editing on heterometal imidazole frameworks for rechargeable zinc-air battery

et al. 2020

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The implementation of pristine metal-organic frameworks as air electrode may spark fresh vitality to rechargeable zinc-air batteries, but successful employment is rare due to the challenges in regulating their electronic states and structural porosity. Here we conquer these issues by incorporating ligand vacancies and hierarchical pores into cobalt-zinc heterometal imidazole frameworks. Systematic characterization and theoretical modeling disclose that the ligand editing eases surmountable energy barrier for *OH deprotonation by its efficacy to steer metal d-orbital electron occupancy. As a stride forward, the selected cobalt-zinc heterometallic alliance lifts the energy level of unsaturated d-orbitals and optimizes their adsorption/desorption process with oxygenated intermediates. With these merits, cobalt-zinc heterometal imidazole frameworks, as a conceptually unique electrode, empowers zinc-air battery with a discharge-charge voltage gap of 0.8 V and a cyclability of 1250 h at 15 mA cm–2, outperforming the noble-metal benchmarks.

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d-Orbital steered active sites through ligand editing on heterometal imidazole frameworks for rechargeable zinc-air battery

et al. 2020

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“…Zinc-air batteries present several drawbacks, mainly originating from the use of aqueous electrolytes -ultimately adversely impacting the performance of zinc electrodes [11][12]. Electrically rechargeable zinc-air batteries are associated with dendrite formation, hydrogen evolution reaction (HER), deformation and limited cycle lives.…”

Section: Fig 2 Reactions In Primary Zinc-air Batteriesmentioning

confidence: 99%

Current status and technical challenges of electrolytes in zinc–air batteries: An in-depth review

Hosseini

Soltani

2021

Chemical Engineering Journal

105

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In the past few years, there has been a growing level of interest in the research and development of energy storage systems such as batteries. This is a direct consequence of the soaring rise in global energy demand across various commercial and industrial sectors. Lithium ion batteries have set out a feasible horizon for widespread deployment as small-scale energy storage devices due to their high efficiency and cyclability. However, the availability and cost of lithium have limited the commercial deployment of large-scale systems. On the other hand, zinc-air batteries have demonstrated comparable efficiencies and have been reported to be suitable replacements for lithium batteries in large-scale applications. Nevertheless, more research has been undertaken to address the issues associated with the cycling processes of these batteries. Secondary zinc-air batteries are yet to be commercially proven feasible due to the low charge/discharge cycle life of electrodes. The main problems of secondary alkaline zinc-air batteries are dendritic growth resulting in an alternation of morphology and structure, self-dissolution and the consequent occurrence of hydrogen evolution reactions. However, by and large, inefficient electrolytes are the main culprits responsible for the reduced performance of zinc-air batteries. Therefore, a comprehensive review of current advancements in the development of suitable electrolytes to promote zinc-air batteries towards commercial application will provide a perspective for future rechargeable zinc-air batteries. In this in-depth review, the effects of the types of electrolytes and their properties on the electrochemical 2 performance of Zn anode have been discussed. A demonstration of the current research status and challenges set upon the large-scale deployment of zinc-air batteries will facilitate the educated steering of future research directions in this critically important realm.

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“…From the perspective of electrolyte solvation and ion association, the strong solvation of Zn 2 + will hinder interfacial charge transfer. [112][113][114][115] Currently, most aqueous ZIBs studies are focused on the development of transition metal-based cathode materials. The strong ionic interactions and the special requirements of ion migration pathways are difficult for inorganic cathode materials to meet.…”

Section: Zinc-ion Batteriesmentioning

confidence: 99%

Covalent Organic Frameworks for Next‐Generation Batteries

2020

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the pore size and pore configuration and introducing functional groups into the framework through pre-synthesis and postsynthesis strategies, and these methods provide the possibility of obtaining high-performance organic electrode materials. In this review, the latest research progress and perspective on using COFs as electrode materials for next-generation batteries, including sodium-ion batteries, potassium-ion batteries, lithiumsulfur batteries, lithium-metal batteries, zinc-ion batteries, magnesium-ion batteries, and aluminum-ion batteries, are summarized. The relative energy-storage mechanism, advantages and challenges of COF electrodes, as well as the corresponding strategies used to achieve better electrochemical performances, are also presented.

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The Current State of Aqueous Zn-Based Rechargeable Batteries

Cited by 315 publications

References 118 publications

d-Orbital steered active sites through ligand editing on heterometal imidazole frameworks for rechargeable zinc-air battery

d-Orbital steered active sites through ligand editing on heterometal imidazole frameworks for rechargeable zinc-air battery

Current status and technical challenges of electrolytes in zinc–air batteries: An in-depth review

Covalent Organic Frameworks for Next‐Generation Batteries

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