A lean‐zinc anode battery based on metal–organic framework‐derived carbon

Li, Chao; Liang, Liheng; Liu, Xuhui; Cao, Ning; Shao, Qingguo; Zou, Peichao; Zang, Xiaobei

doi:10.1002/cey2.301

Cited by 27 publications

(15 citation statements)

References 53 publications

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“…The ZIF-8-500 anode presented ultra-stable Coulombic efficiencies (CE) up to 99.8% over 200 cycles regardless of current densities because it can serve as the substrate after the initial plating, which leads to uniform Zn nucleation for the further plating process, as illustrated in Figure 7 a, and confirmed by SEM images of Zn deposits ( Figure 7 b). Apart from that, MOF-5 was reduced and simultaneously carbonized by Li et al [ 77 ]. The novel anode (denoted as MDC) featuring sufficient nucleation sites can guide the zinc growth ( Figure 7 c) and maintain high Zn 0 plating/stripping reversibility with an average CE of 99.4% after 3000 cycles at 1 mA cm −2 and 0.5 mAh cm −2 .…”

Section: Mof-based Materials For Anode Protection In Azibsmentioning

confidence: 99%

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Metal-Organic Framework-Based Materials in Aqueous Zinc-Ion Batteries

et al. 2023

IJMS

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Aqueous zinc-ion batteries (AZIBs) are promising for large-scale energy storage systems due to their high safety, large capacity, cost-effectiveness, and environmental friendliness. However, their commercialization is currently hindered by several challenging issues, including cathode degradation and zinc dendrite growth. Recently, metal-organic frameworks (MOFs) and their derivatives have gained significant attention and are widely used in AZIBs due to their highly porous structures, large specific surface area, and ability to design frameworks for Zn2+ shuttle. Based on preceding contributions, this review aims to generalize two design principles for MOF-based materials in AZIBs: cathode preparation and anode protection. For cathode preparation, we mainly introduce novel MOF-based electrode materials such as pure MOFs, porous carbon materials, metal oxides, and their compounds, focusing on the analysis of the specific capacity of AZIBs. For anode protection, we systematically analyze MOF-based materials used as 3D Zn architecture, solid electrolyte interfaces, novel separators, and solid-state electrolytes, highlighting the improvement in the cyclic stability of Zn anodes. Finally, we propose the future development of MOF-based materials in AZIBs. Our work can give some clues for raising the practical application level of aqueous ZIBs.

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Section: Mof-based Materials For Anode Protection In Azibsmentioning

confidence: 99%

“…( c ) Schematic diagram of the electroplating/stripping principle of MDC. ( d ) Simulation of the electric field distribution of MDC–Cu and a planar bare Cu foil [ 77 ]. Copyright 2022, John Wiley and Sons.…”

Section: Figurementioning

confidence: 99%

Metal-Organic Framework-Based Materials in Aqueous Zinc-Ion Batteries

et al. 2023

IJMS

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“…Comparatively, leveraging a lean‐Zn configuration with minimal N/P ratios is practically more promising to balance the cycling lifetime and energy density of ZMBs. [ 10 ] However, such a battery system has been rarely investigated.…”

Section: Introductionmentioning

confidence: 99%

A Lean‐Zinc and Zincophilic Anode for Highly Reversible Zinc Metal Batteries

Shao

Luo

et al. 2023

Adv Funct Materials

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Lean‐zinc anode is a promising configuration that can eliminate the trade‐off of energy density and cycle lifetime of zinc metal (Zn0) batteries. However, there are rare investigations of lean‐Zn anode designs and it remains a grand change to sustain high zinc reversibility under lean zinc conditions. Herein, a lean‐Zn anode design based on a hierarchical and zincophilic cobalt metal (Co0) nanowire‐decorated carbon host, which is derived from a ZnCo bimetallic organic framework, is reported. Within the lean‐Zn anode, the trace amount of Zn0 acts as a zinc reservoir to make up for any irreversible loss of zinc source upon cycling, while the zincophilic Co0 nanowires can guide uniform zinc nucleation and growth through a lattice matching mechanism. Consequently, high Zn0 reversibility (average Coulomb efficiency of 99.6% for 4250 cycles), low nucleation overpotential (50.8 mV at 1 mA cm−2), and uniform and compact zinc electrodeposition are realized. When coupling the lean‐Zn anode with a Zn‐containing cathode, the full cell delivers high Coulomb efficiency (99.6% for 4250 cycles on average) and a long lifetime of more than 5000 cycles.

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“…To address these critical issues, several strategies have been developed, such as protective layer coatings, − interfacial modification, , improved structural design of the Zn anode, and electrolyte regulation. − Among these strategies, electrolyte regulation is an efficient route because of its suitability for manufacturing and low production cost. − As an essential component of the electrolyte, the zinc salt, especially the zinc salt anion, greatly affects the properties of the electrolyte (e.g., electrochemical stability, ionic conductivity, and solubility) . So far, ZnSO 4 and Zn(CF 3 SO 3 ) 2 are the most commonly used electrolyte salts due to their compatibility with the Zn anode and their high electrochemical stability window .…”

Section: Introductionmentioning

confidence: 99%

Salt Anion Amphiphilicity-Activated Electrolyte Cosolvent Selection Strategy toward Durable Zn Metal Anode

Liu,

Lu,

Han

et al. 2023

ACS Nano

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One effective solution to inhibit side reactions and Zn dendrite growth in aqueous Zn-ion batteries is to add a cosolvent into the Zn(CF3SO3)2 electrolyte, which has the potential to form a robust solid electrolyte interface composed of ZnF2 and ZnS. Nevertheless, there is still a lack of discussion on a convenient selection method for cosolvents, which can directly reflect the interactions between solvent and solute to rationally design the electrolyte solvation structure. Herein, logP, where P is the octanol–water partition coefficient, a general parameter to describe the hydrophilicity and lipophilicity of chemicals, is proposed as a standard for selecting cosolvents for Zn(CF3SO3)2 electrolyte, which is demonstrated by testing seven different types of solvents. The solvent with a logP value similar to that of the salt anion CF3SO3 – can interact with CF3SO3 –, Zn2+, and H2O, leading to a reconstruction of the electrolyte solvation structure. To prove the concept, methyl acetate (MA) is demonstrated as an example due to its similar logP value to that of CF3SO3 –. Both the experimental and theoretical results illustrate that MA molecules not only enter into the solvation shell of CF3SO3 – but also coordinate with Zn2+ or H2O, forming an MA and CF3SO3 – involved core–shell solvation structure. The special solvation structure reduces H2O activity and contributes to forming an anion-induced ZnCO3–ZnF2-rich solid electrolyte interface. As a result, the Zn||Zn cell and Zn||NaV3O8·1.5H2O cell with MA-involved electrolyte exhibit superior performances to that with the MA-free electrolyte. This work provides an insight into electrolyte design via salt anion chemistry for high-performance Zn batteries.

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A lean‐zinc anode battery based on metal–organic framework‐derived carbon

Cited by 27 publications

References 53 publications

Metal-Organic Framework-Based Materials in Aqueous Zinc-Ion Batteries

Metal-Organic Framework-Based Materials in Aqueous Zinc-Ion Batteries

A Lean‐Zinc and Zincophilic Anode for Highly Reversible Zinc Metal Batteries

Salt Anion Amphiphilicity-Activated Electrolyte Cosolvent Selection Strategy toward Durable Zn Metal Anode

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