A hierarchical porous tin host for dendrite-free, highly reversible zinc anodes

Jian, Qinping; Guo, Zixiao; Zhang, Leicheng; Wu, Maochun; Zhao, Tianshou

doi:10.1016/j.cej.2021.130643

Cited by 68 publications

(39 citation statements)

References 55 publications

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“…For instance, the cycling life of the Zn-P-MIECbased cell (100 h) was 125 times longer than that of the Zn foil (0.8 h) when the applied current density and cycling capacity were increased to 10 mA cm -2 and 1 mA h cm -2 , respectively (Figure 4b). These values are better than the values previously reported for Zn-P and are superior to those obtained in most advanced Zn-based anodes (Figure S6 and Table S2, Supporting Information), [28,33,34,36,[47][48][49][50] reflecting the efficacy of MIEC in restraining Zn dendrite growth.…”

Section: Resultscontrasting

confidence: 62%

Construction of Mixed Ionic‐Electronic Conducting Scaffolds in Zn Powder: A Scalable Route to Dendrite‐Free and Flexible Zn Anodes

Zhang

Xiong

et al. 2022

Advanced Materials

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Zn powder (Zn‐P)‐based anodes are considered ideal candidates for Zn‐based batteries because they enable a positive synergistic integration of safety and energy density. However, Zn‐P‐based anodes still experience easy corrosion, uncontrolled dendrite growth, and poor mechanical strength, which restrict their further application. Herein, a mixed ionic‐electronic conducting scaffold is introduced into Zn‐P to successfully fabricate anti‐corrosive, flexible, and dendrite‐free Zn anodes using a scalable tape‐casting strategy. The as‐established scaffold is characterized by robust flexibility, facile scale‐up synthesis methodology, and exceptional anti‐corrosive characteristics, and it can effectively homogenize the Zn2+ flux during Zn plating/stripping, thus allowing stable Zn cycling. Benefiting from these comprehensive attributes, the as‐prepared Zn‐P‐based anode provides superior electrochemical performance, including long‐life cycling stability and high rate capability in practical coin and flexible pouch cells; thus, it holds great potential for developing advanced Zn‐ion batteries. The findings of this study provide insights for a promising scalable pathway to fabricate highly efficient and reliable Zn‐based anodes and will aid in the realization of advanced flexible energy‐storage devices.

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Section: Resultscontrasting

confidence: 62%

Construction of Mixed Ionic‐Electronic Conducting Scaffolds in Zn Powder: A Scalable Route to Dendrite‐Free and Flexible Zn Anodes

Zhang

Xiong

et al. 2022

Advanced Materials

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“…4 %) of the Coulombic efficiency could be made thanks to the appropriate magnified scale and small marker employed in Figure 6b, which is in contrast to the ones routinely employed within the literature, spanning from 0 % to 120 % and using markers of ca. 5 %, which make impossible to observe such small efficiency fluctuations [52,53] …”

Section: Resultsmentioning

confidence: 99%

“…5 %, which make impossible to observe such small efficiency fluctuations. [52,53] Finally, operando differential electrochemical mass spectrometry (DEMS) has been employed to quantitatively measure the hindering effect towards the hydrogen evolution reaction when electrodes containing metallic indium particles were used as substrates for the Zn 2 + electrodeposition/dissolution reaction, in contrast with the standard Zn-powder electrode. The operando DEMS analysis has been performed on both the full cells assembled with a MnO 2 cathode, and a Zn-powder or a BiÀ In-powder anode, respectively.…”

Section: Resultsmentioning

confidence: 99%

Highly Efficient, Dendrite‐Free Zinc Electrodeposition in Mild Aqueous Zinc‐Ion Batteries through Indium‐Based Substrates

Tribbia

Glenneberg

Zampardi

et al. 2022

Batteries & Supercaps

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Quasi‐neutral aqueous zinc‐ion (Zn‐ion) batteries are nowadays among the most promising energy storage devices for smart‐grid applications. However, their practical use remains hindered by the low Zn electrodeposition efficiency at the negative electrode, which is especially reduced due to the parasitic evolution of gaseous hydrogen. Indium is a non‐toxic metal showing poor hydrogen evolution kinetics, but it is also very expensive. Therefore, an optimized mixture of bismuth and indium particles has been used as the substrate for the Zn electrodeposition and dissolution reaction to increase its reversibility and its efficiency in a quasi‐neutral ZnSO4 solution. This strategy not only allowed to prolong the cycle life of a full Zn‐ion cell of 10 times at 0.5 C due to the suppression of the hydrogen evolution reaction, as proved by the operando DEMS analysis, but also led to very homogeneous zinc deposits over prolonged cycling at realistic charge and current densities.

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“…Over the past decade, extensive research has been conducted to address the aforementioned issues of Zn anodes, including functional nucleation regulations, − three-dimensional electrode engineering, − surface manipulation, − separator design, , concentrated electrolytes, − and electrolyte additives. − Among them, manipulating the Zn/electrolyte interface is considered as one of the most promising ways to improve the Zn anode because it could conveniently regulate the ion transfer, solvent, and electric field distribution at the interface, which plays a determining role in the reversibility and uniformity of Zn plating/stripping behavior. Thus far, various materials and methods have been applied to construct a functional protective layer or artificial solid–electrolyte interphase (SEI) on the Zn anode, including inorganic metal oxides and elastic polymers.…”

Section: Introductionmentioning

confidence: 99%

A Highly Reversible Zinc Anode for Rechargeable Aqueous Batteries

Jian

Wan

Lin

et al. 2021

ACS Appl. Mater. Interfaces

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Zinc metal holds a great potential as an anode material for next-generation aqueous batteries due to its suitable redox potential, high specific capacity, and low cost. However, the uncontrollable dendrite growth and detrimental side reactions with electrolytes hinder the practical application of this type of electrodes. To tackle the issues, an ultrathin (∼1 μm) sulfonated poly(ether ether ketone) (SPEEK) solid–electrolyte interphase (SEI) is constructed onto the Zn anode surface by a facile spin-coating method. We demonstrate that the polymeric SEI simultaneously blocks the water molecules and anions, uniformizes the ion flux, and facilitates the desolvation process of Zn2+ ions, thus effectively suppressing the side reactions and Zn dendrite formation. As a result, the newly developed Zn@SPEEK anode enables a symmetric cell to stably operate over 1000 cycles at 5 mA cm–2 without degradation. Moreover, with the Zn anode paired with a MnO2 cathode, the full cell exhibits an improved Coulombic efficiency (over 99% at 0.1 A g–1), a superior rate capability (127 mA h g–1 at 2 A g–1), and excellent cycling stability (capacity retention of 70% over 1000 cycles at 1 A g–1). This work provides a facile yet effective strategy to address the critical challenges in Zn anodes, paving the way for the development of high-performance rechargeable aqueous batteries.

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A hierarchical porous tin host for dendrite-free, highly reversible zinc anodes

Cited by 68 publications

References 55 publications

Construction of Mixed Ionic‐Electronic Conducting Scaffolds in Zn Powder: A Scalable Route to Dendrite‐Free and Flexible Zn Anodes

Construction of Mixed Ionic‐Electronic Conducting Scaffolds in Zn Powder: A Scalable Route to Dendrite‐Free and Flexible Zn Anodes

Highly Efficient, Dendrite‐Free Zinc Electrodeposition in Mild Aqueous Zinc‐Ion Batteries through Indium‐Based Substrates

A Highly Reversible Zinc Anode for Rechargeable Aqueous Batteries

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