Highly stable zinc metal anode enabled by oxygen functional groups for advanced Zn-ion supercapacitors

Zou, Kangyu; Cai, Peng; Deng, Xinglan; Wang, Baowei; Liu, Cheng; Luo, Zheng; Lou, Xiaoming; Hou, Hongshuai; Zou, Guoqiang; Ji, Xiaobo

doi:10.1039/d0cc07526d

Cited by 34 publications

(20 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 2e summarizes the voltage hysteresis and lifespan of N‐Zn along with those of other related works introducing artificial surface modification methods for the Zn anode of ZIBs. [ 15 , 16 , 27 , 30 , 31 , 32 , 33 , 34 , 35 ] It is worth noting that this work shows loner cycling life and lower voltage hysteresis under 1mA cm –2 compared to other reported approaches. In addition, the symmetrical N‐Zn cell maintained a stable lifespan for 1000 h at 2 mA cm −2 and 500 h at 5 mA cm –2 , demonstrating the high reversibility of zincophilic sites under large current density.…”

Section: Resultsmentioning

confidence: 71%

Advanced Zinc Anode with Nitrogen‐Doping Interface Induced by Plasma Surface Treatment

et al. 2021

View full text Add to dashboard Cite

Aqueous zinc‐ion batteries (ZIBs) are one of the most ideal candidates for grid‐scale energy storage applications due to their excellent price and safety advantages. However, formation of Zn dendrites and continuous side reactions during cycling result in serious instability problems for ZIBs. In this work, the authors develop a facile and versatile plasma‐induced nitrogen‐doped Zn (N‐Zn) foil for dendrite‐free Zn metal anode. Benefitting from the uniform nucleation sites and enhanced surface kinetics, the N‐Zn anode exhibits exceptionally low overpotential (around 23 mV) at 1 mA cm−2 and can be cycled for over 3000 h under 1 mA cm−2 because of the enhanced interface behavior. The potential application of N‐Zn anode is also confirmed by introducing a full Zn/MnO2 battery with outstanding capacity stability for 2000 cycles at 1 A g–1. Overall, this work offers new fundamental insights into homogenizing Zn electrodeposition processes by pre‐introduced active nucleation sites and provides a novel direction of interface design engineering for ultra‐stable Zn metal anode.

show abstract

Section: Resultsmentioning

confidence: 71%

Advanced Zinc Anode with Nitrogen‐Doping Interface Induced by Plasma Surface Treatment

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Moreover, EDTA, as a typical coordination agent with abundant oxygen/nitrogen functional groups, would be coordinated with Zn 2+ -ions and regulate the Zn nucleation and growth to enable uniform Zn plating and consequent uniform stripping. [37][38][39] Taking the suppressed corrosion reaction and uniform Zn plating together, improved reversibility of Zn metal electrode can be expected in EDTA-containing electrolyte.…”

Section: Resultsmentioning

confidence: 99%

“…As shown in Figure 1B, EDTA would be absorbed instead of water molecules, thus reducing the direct contact between active Zn and water molecules, and inhibiting corrosion side reactions. Moreover, EDTA, as a typical coordination agent with abundant oxygen/nitrogen functional groups, would be coordinated with Zn 2+ ‐ions and regulate the Zn nucleation and growth to enable uniform Zn plating and consequent uniform stripping 37–39 . Taking the suppressed corrosion reaction and uniform Zn plating together, improved reversibility of Zn metal electrode can be expected in EDTA‐containing electrolyte.…”

Section: Resultsmentioning

confidence: 99%

Reversible aqueous Zn battery anode enabled by a stable complexation adsorbent interface

Cai

Wang

et al. 2022

EcoMat

View full text Add to dashboard Cite

Rechargeable aqueous Zn batteries (RAZBs) are highly promising for grid‐scale energy storage systems. Nevertheless, strong water molecule adsorption on Zn electrode provokes undesired corrosion reactions and electrode polarization/dendrite growth, restricting the reversibility of Zn anode and the commercialization of RAZBs. Herein, ethylenediamine tetraacetic acid (EDTA), a typical compounding ingredient, was applied in aqueous ZnSO4 electrolyte to replace the adsorbed water molecules on Zn surface and enabled a stable complexation adsorbent interface. The chemically adsorbed EDTA layer reduced the direct contact between H2O molecules and metallic Zn, and reduced the corrosion rate to more than a half. Moreover, such adsorbent interface featuring abundant oxygen/nitrogen‐based functional groups regulated Zn deposition kinetics and promoted the uniform Zn plating. As consequence, the stable complexation adsorbent interface enabled highly‐reversible Zn stripping/plating behavior for 5000 h under a harsh dynamic measurement that combining eletrochemical cycling at 1 mA cm−2 and 0.5 mAh cm−2 for 72 h and resting for 24 h. The effectiveness of such complexation adsorbent interface was also verified in MnO2||Zn full cells. The complexation interface chemistry demonstrated in this study opened up new avenues for the design of low‐cost and highly reversible Zn metal electrodes towards next‐generation RAZBs.

show abstract

“…Notably, our work delivered a high cumulative capacity (current density Â cycle life) of 4000 mAh cm À2 (2.5 mAh cm À2 Â 1600 h) based on an ultra-thin BN interface in 100 nm, surpassing the performance of most previous interface modification strategies with a much thinner thickness based on the data summarized in Table S2. 20,[24][25][26][27][28][29][30][31][32][33][34][35] It should also be noted that the ultra-thin BN interface induced by magnetron sputtering technique delivered the boosted cycling stability than the spray coating method of BN based materials profiting from the precise thickness control. 36 The surface morphology of each electrode after 50 cycles was observed by SEM.…”

Section: Resultsmentioning

confidence: 99%

Nano‐scale BN interface for ultra‐stable and wide temperature range tolerable Zn anode

Jia

Qiu

Tang

et al. 2022

EcoMat

View full text Add to dashboard Cite

Aqueous Zn‐based energy storage device (ZESD) is a promising candidate for large‐scale energy storage applications due to its significant merits like low cost, inherent safety, and environmental benignity. However, one shortcoming of ZESDs is the performance deficiency of pristine Zn anode caused by detrimental dendrite formation and side reactions. In this work, a novel boron nitride nano‐scale interface was established for ultra‐stable and wide temperature range tolerable anode (BN@Zn) by a scalable magnetron sputtering technique. The as‐introduced BN layers afford enhanced Zn deposition kinetics for a wide temperature application range from −20 to 60°C and effectively mitigated dendritic growth, which were ascribed to the strong interlayer bonds and uniform active sites as demonstrated by both experimental and density functional theory research results. Thus, the ultra‐thin BN interface could significantly improve the reaction kinetics and electrochemical stability of Zn anode, providing a new perspective towards the advanced ZESDs.

show abstract

Highly stable zinc metal anode enabled by oxygen functional groups for advanced Zn-ion supercapacitors

Abstract: Konjac glucomannan (KGM) featuring abundant oxygen functional groups has been elaborately designed to enhance Zn reversibility.

Cited by 34 publications

References 18 publications

Advanced Zinc Anode with Nitrogen‐Doping Interface Induced by Plasma Surface Treatment

Advanced Zinc Anode with Nitrogen‐Doping Interface Induced by Plasma Surface Treatment

Reversible aqueous Zn battery anode enabled by a stable complexation adsorbent interface

Nano‐scale BN interface for ultra‐stable and wide temperature range tolerable Zn anode

Contact Info

Product

Resources

About