Highly Reversible Zn Anode Enabled by Controllable Formation of Nucleation Sites for Zn‐Based Batteries

Liang, Pengcheng; Yi, Jin; Liu, Xiaoyu; Wu, Kai; Wang, Zhuo; Chen, Jin; Liu, Yuyu; Wang, Yonggang; Xia, Yongyao; Zhang, Jiujun

doi:10.1002/adfm.201908528

Cited by 558 publications

(434 citation statements)

References 67 publications

(100 reference statements)

Supporting

Mentioning

425

Contrasting

Order By: Relevance

“…Zn anode still experienced a unfavorable water decomposition and generated a fragile interphase layer (mainly ZnO and Zn(OH) 2 ). [24][25][26] The interwoven interplay between byproduct components with triiodide might leave an adverse impact on Zn anode. [27] Up to now, there is shallow understanding and no comprehensive discussion toward the complicated reaction of iodine species on Zn anode, especially in consideration of complicated interphase component with dendrite formation on Zn surface.…”

Section: −1mentioning

confidence: 99%

A Metal–Organic Framework as a Multifunctional Ionic Sieve Membrane for Long‐Life Aqueous Zinc–Iodide Batteries

et al. 2020

View full text Add to dashboard Cite

The introduction of the redox couple of triiodide/iodide (I3−/I−) into aqueous rechargeable zinc batteries is a promising energy‐storage resource owing to its safety and cost‐effectiveness. Nevertheless, the limited lifespan of zinc–iodine (Zn–I2) batteries is currently far from satisfactory owing to the uncontrolled shuttling of triiodide and unfavorable side‐reactions on the Zn anode. Herein, space‐resolution Raman and micro‐IR spectroscopies reveal that the Zn anode suffers from corrosion induced by both water and iodine species. Then, a metal–organic framework (MOF) is exploited as an ionic sieve membrane to simultaneously resolve these problems for Zn–I2 batteries. The multifunctional MOF membrane, first, suppresses the shuttling of I3− and restrains related parasitic side‐reaction on the Zn anode. Furthermore, by regulating the electrolyte solvation structure, the MOF channels construct a unique electrolyte structure (more aggregative ion associations than in saturated electrolyte). With the concurrent improvement on both the iodine cathode and the Zn anode, Zn–I2 batteries achieve an ultralong lifespan (>6000 cycles), high capacity retention (84.6%), and high reversibility (Coulombic efficiency: 99.65%). This work not only systematically reveals the parasitic influence of free water and iodine species to the Zn anode, but also provides an efficient strategy to develop long‐life aqueous Zn–I2 batteries.

show abstract

Section: −1mentioning

confidence: 99%

A Metal–Organic Framework as a Multifunctional Ionic Sieve Membrane for Long‐Life Aqueous Zinc–Iodide Batteries

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Besides, protective layer or buffer coating is recognized as an effective strategy to stabilize metal Zn anode, such as the naturally nanoporous CaCO 3 layer onto Zn surface to achieve uniform Zn 2+ stripping/plating, [ 13 ] polyamide buffer layer for isolating active Zn from bulk electrolyte, [ 14 ] artificial solid–electrolyte interface of the nanosized MOFs, [ 15 ] and some conductive nanoshell, [ 16 ] mesoporous hollow carbon, [ 17 ] ultrathin surface of TiO 2 coating, [ 18 ] inert physical ZrO 2 coating. [ 19 ] The interface modification strategy for the anode of ZIBs possesses the advantages of simplicity and high cost/time effectiveness, which has high research value and broad application prospects. And there is still great development room for interface materials with special functions such as ion sieving and transference regulation.…”

Section: Introductionmentioning

confidence: 99%

A Sieve‐Functional and Uniform‐Porous Kaolin Layer toward Stable Zinc Metal Anode

Deng

Xie

Han

et al. 2020

Adv Funct Materials

471

363

View full text Add to dashboard Cite

Zinc metal is considered as one of the best anode choices for rechargeable aqueous Zn-based batteries due to its high specific capacity, abundance, and safety. However, dendrite and corrosion issues remain a challenge for this system. Herein, sieve-element function (selective channel of Zn 2+ ) and uniform-pore distribution (≈3.0 nm) of a kaolin-coated Zn anode (KL-Zn) is proposed to alleviate these problems. Based on the artificial Zn metal/electrolyte interface, the KL-Zn anode not only ensures dendritefree deposition and long-time stability (800 h at 1.1 mA h cm −2 ), but also retards side reactions. As a consequence, KL-Zn/MnO 2 batteries can deliver high specific capacity and good capacity retention as well as a reasonably well-preserved morphology (KL-Zn) after 600 cycles at 0.5 A g −1 . This work provides a deep step toward high-performance rechargeable Zn-based battery system.

show abstract

“…46,[52][53][54] Ion concentration also plays a significant role in the nucleation process because the nucleation barrier will be reduced at the area with higher ion concentration or faster ion transmission. 22,49,55 Another influential factor is surface energy. 45,50,56 High surface energy, which is influenced by zincophilicity, defects, lattice matching degree, and so on, can decrease nucleation barriers via creating abundant nucleation sites, eventually inducing uniform deposition on the surface ( Figure 1C).…”

Section: Causes and Effectsmentioning

confidence: 99%

Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

et al. 2020

View full text Add to dashboard Cite

Aqueous zinc-ion batteries (ZIBs) have been intensively investigated as potential energy storage devices on account of their low cost, environmental benignity, and intrinsically safe merits. With the exploitation of highperformance cathode materials, electrolyte systems, and in-depth mechanism investigation, the electrochemical performances of ZIBs have been greatly enhanced. However, there are still some challenges that need to be overcome before its commercialization. Among them, the obstinate dendrites, corrosion, and hydrogen evolution reaction (HER) on Zn anodes are critical issues that severely limit the practical applications of ZIBs. To address these issues, various strategies have been proposed, and tremendous progress has been achieved in the past few years. In this article, we analyze the origins and effects of the dendrites, corrosion, and HER on Zn anodes in neutral and mildly acid aqueous solutions at first. And then, a scientific understanding of the fundamental design principles and strategies to suppress these problems are emphasized. Apart from these, this article also puts forward some requirements for the practical applications of Zn anodes as well as several cost-effectivemodifying strategies. Finally, perspectives on the future development of Zn anodes in aqueous solutions are also briefly anticipated. This article provides pertinent insights into the challenges on anodes for the development of highperformance ZIBs, which will greatly contribute to their practical applications. K E Y W O R D S corrosion, hydrogen evolution reaction, Zn anode, Zn dendrites 1 | INTRODUCTION As a result of the ongoing crisis in the depletion of conventional fossil fuels, renewable clean energy sources, such as solar energy, wind energy, hydropower, geothermal, and nuclear energy, are rapidly developing. 1,2 Nevertheless, it remains an extreme challenge to efficiently store the energy generated by those renewable

show abstract

Highly Reversible Zn Anode Enabled by Controllable Formation of Nucleation Sites for Zn‐Based Batteries

Cited by 558 publications

References 67 publications

A Metal–Organic Framework as a Multifunctional Ionic Sieve Membrane for Long‐Life Aqueous Zinc–Iodide Batteries

A Metal–Organic Framework as a Multifunctional Ionic Sieve Membrane for Long‐Life Aqueous Zinc–Iodide Batteries

A Sieve‐Functional and Uniform‐Porous Kaolin Layer toward Stable Zinc Metal Anode

Issues and solutions toward zinc anode in aqueous zinc‐ion batteries: A mini review

Contact Info

Product

Resources

About