Long-life and deeply rechargeable aqueous Zn anodes enabled by a multifunctional brightener-inspired interphase

Zhao, Zhiming; Zhao, Jingwen; Hu, Zhenglin; Li, Jiedong; Li, Jiajia; Zhang, Yaojian; Wang, Cheng; Cui, Guanglei

doi:10.1039/c9ee00596j

Cited by 1,605 publications

(1,341 citation statements)

References 74 publications

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“…As shown in Figure S5 (Supporting Information), the corrosion potentials of the bare Zn and the ZrO 2 ‐coated Zn locate 1.361 and 1.382 V, respectively. The above obtained results suggest that the corrosion potential can be shifted to a more positive potential by the ZrO 2 coating layer, which implies the less tendency of HER and oxygen reduction reaction 7. For the weak acidic property of 2 m ZnSO 4 used in this work, the corrosion reactions may probably refer to the HER.…”

Section: Resultsmentioning

confidence: 60%

“…Therefore, exploring alternative richer abundant and lower cost metals than lithium for battery applications are necessary. In this regard, metallic zinc (Zn) has been considered to be one of the alternatives due to its low potential (−0.762 V vs standard hydrogen electrode (SHE)), high theoretical capacity (820 mAh g −1 ), large abundance, environmental‐friendly properties, and inherent safety 7–9. Up to now, various Zn‐based batteries have been widely investigated, such as Zn–air battery,10–13 Zn–NiOOH battery,14–16 Zn–V 2 O 5 battery,17–19 Zn–MnO 2 battery,20–23 etc.…”

Section: Introductionmentioning

confidence: 99%

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

Liang

Liu

et al. 2020

Adv Funct Materials

626

425

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Aqueous Zn batteries have drawn tremendous attention for their several advantages. However, the challenges of Zn anodes such as the corrosion and ZnO densification have compromised their application in rechargeable Zn‐based batteries. In this paper, a straightforward strategy is employed to facilitate the uniform Zn stripping/plating of the Zn anode through using a ZrO2 coating layer, which contributes to the controllable nucleation sites for Zn2+ and fast Zn2+ transportation through the favorable Maxwell–Wagner polarization. As a result, the low polarization (24 mV at 0.25 mA cm−2), high Coulombic efficiency (99.36% at 20 mA cm−2), and long cycle life (over 3800 h at 0.25 mA cm−2) can be obtained for the ZrO2‐coated Zn anode. It is believed that the ZrO2 coating layer can also act as an inert physical barrier to decrease the contact of the anode and electrolyte, thus reducing both the Zn corrosion and formation of ZnO densification, and then improve the reversibility of Zn anode. The results demonstrated in this work provide an appealing strategy for the future development of rechargeable Zn‐based batteries.

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Section: Resultsmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

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

Liang

Liu

et al. 2020

Adv Funct Materials

626

425

View full text Add to dashboard Cite

show abstract

“…While being very slow, during long‐term operation, it will eventually lead to the consumption of Zn and electrolyte, as well as battery swell with the generated hydrogen. [ 10–13 ] In addition, the undesired side reaction also drives Zn dendrites growth, reducing the utilization efficiency of the Zn anode and even arousing short‐circuit of battery. [ 14–17 ] Moreover, due to solvation effect, the strong interactions between H 2 O molecules and Zn 2+ cations cause a high energy barrier for a solvated Zn 2+ to desolvate and reversibly deposit in aqueous electrolyte.…”

Section: Figurementioning

confidence: 99%

Hydrogen‐Free and Dendrite‐Free All‐Solid‐State Zn‐Ion Batteries

et al. 2020

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An ionic‐liquid‐based Zn salt electrolyte is demonstrated to be an effective route to solve both the side‐reaction of the hydrogen evolution reaction (HER) and Zn‐dendrite growth in Zn‐ion batteries. The developed electrolyte enables hydrogen‐free, dendrite‐free Zn plating/stripping over 1500 h cycle (3000 cycles) at 2 mA cm–2 with nearly 100% coulombic efficiency. Meanwhile, the oxygen‐induced corrosion and passivation are also effectively suppressed. These features bring Zn‐ion batteries an unprecedented long lifespan over 40 000 cycles at 4 A g–1 and high voltage of 2.05 V with a cobalt hexacyanoferrate cathode. Furthermore, a 28.6 µm thick solid polymer electrolyte of a poly(vinylidene fluoride‐hexafluoropropylene) film filled with poly(ethylene oxide)/ionic‐liquid‐based Zn salt is constructed to build an all‐solid‐state Zn‐ion battery. The all‐solid‐state Zn‐ion batteries show excellent cycling performance of 30 000 cycles at 2 A g–1 at room temperature and withstand high temperature up to 70 °C, low temperature to –20 °C, as well as abuse test of bending deformation up to 150° for 100 cycles and eight times cutting. This is the first demonstration of an all‐solid‐state Zn‐ion battery based on a newly developed electrolyte, which meanwhile solves the deep‐seated hydrogen evolution and dendrite growth problem in traditional Zn‐ion batteries.

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“…[31] Thef ull cell using PA Me lectrolyte can stably operate for 200 cycles with ah igh specific capacity of 156.8 mAh g À1 and capacity retention of 87.2 %at200 mA g À1 (Figure 6a). Thedesign capacity of the zinc anode is 20 % excess compared to the cathode.0.1m MnSO 4 is added in the electrolyte to inhibit the dissolution of Mn 2+ from MnO 2 cathode.…”

Section: Angewandte Chemiementioning

confidence: 99%

The Three‐Dimensional Dendrite‐Free Zinc Anode on a Copper Mesh with a Zinc‐Oriented Polyacrylamide Electrolyte Additive

et al. 2019

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Rechargeable aqueous zinc-ion batteries have been considered as ap romising candidate for next-generation batteries.H owever,t he formation of zinc dendrites are the most severe problems limiting their practical applications.T od evelop stable zinc metal anodes,asynergistic method is presented that combines the Cu-Zn solid solution interface on ac opper mesh skeleton with good zinc affinity and ap olyacrylamide electrolyte additive to modify the zinc anode,whichcan greatly reduce the overpotential of the zinc nucleation and increase the stability of zinc deposition. The as-prepared zinc anodes show adendrite-free plating/stripping behavior over awide range of current densities.T he symmetric cell using this dendrite-free anode can be cycled for more than 280 hw ith av ery lowv oltage hysteresis (93.1 mV) at ad ischarged epth of 80 %. The high capacity retention and low polarization are also realized in Zn/MnO 2 full cells.Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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Long-life and deeply rechargeable aqueous Zn anodes enabled by a multifunctional brightener-inspired interphase

Abstract: A brightener-inspired polymer interphase enables highly reversible aqueous Zn anodes via suppressing side-reactions and manipulating the nucleation process.

Cited by 1,605 publications

References 74 publications

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

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

Hydrogen‐Free and Dendrite‐Free All‐Solid‐State Zn‐Ion Batteries

The Three‐Dimensional Dendrite‐Free Zinc Anode on a Copper Mesh with a Zinc‐Oriented Polyacrylamide Electrolyte Additive

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