Constructing fast-ion-conductive disordered interphase for high-performance zinc-ion and zinc-iodine batteries

Peng, Haijun; Fang, Yun; Wang, Jinzhe; Ruan, Pengchao; Tang, Yan; Lu, Bingan; Cao, Xinxin; Liang, Shuquan; Zhou, Jiang

doi:10.1016/j.matt.2022.08.025

Cited by 69 publications

(46 citation statements)

References 57 publications

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“…The low-magnification cross-sectional view of the electrodeposited layer is further given in Figure S2, confirming the uniformity of the as-deposited Zn metal anode. It should be noted here that the deviation with a theoretical deposition thickness of 5.0 μm is mainly caused by the micropores and slight unevenness on the surface . To further quantify the ratio of different surface orientations for the as-deposited Zn, X-ray diffraction (XRD) characterization is performed.…”

Section: Resultsmentioning

confidence: 99%

“…It should be noted here that the deviation with a theoretical deposition thickness of 5.0 μm is mainly caused by the micropores and slight unevenness on the surface. 34 To further quantify the ratio of different surface orientations for the as-deposited Zn, X-ray diffraction (XRD) characterization is performed. As shown in Figure 1f, the three diffraction peaks between 35 and 45°can be indexed to the (002), (100), and (101) surfaces of Zn metal (JCPDS #87-0173).…”

Section: Resultsmentioning

confidence: 99%

“… discovered that the (002) surface is more compact with lower surface energy, which could promote stable electrodeposition via an epitaxial growth mechanism, achieving high reversibility over thousands of plating/stripping cycles. Previous research studies focused extensively on increasing the (002) surface ratio of the Zn metal anode, including substrate regulation, electrolyte engineering (with additives − or gel electrolytes), surface-protective layer coating, , and roll press . Meanwhile, the (101) surface of a Zn metal anode is less well understood so far.…”

Section: Introductionmentioning

confidence: 99%

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Surface Engineering for Ultrathin Metal Anodes Enabling High-Performance Zn-Ion Batteries

Zhou

Meng

et al. 2023

ACS Appl. Mater. Interfaces

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Zn-ion batteries with low cost and high safety have been regarded as a promising energy storage technology for grid storage. It is well-known that the metal anode surface orientation is vital to its reversibility. Herein, we demonstrate a facile route to control the Zn metal anode surface orientation through electrodeposition with electrolyte additives. An ultrathin (101)-inclined Zn metal anode (down to 2 μm) is obtained by adding a small amount of dimethyl sulfoxide (DMSO) in the ZnSO 4 aqueous electrolyte. Scanning electron microscopy indicates the formation of flat terrace-like surfaces, while in situ optical observations demonstrate the reversible plating and stripping. DFT calculations reveal that the large reconstruction of the Zn-( 101) surface with DMSO and H 2 O adsorption to lower the interface energy is the main driving force for surface preference. Raman, XPS, and ToF-SIMS characterizations are performed to unveil the surface SEI components. Exceptional electrochemical performance is demonstrated for the (101)-inclined Zn metal anode in a half cell, which could cycle for 200 h with a low overpotential (<50 mV). The Zn||V 2 O full cells are assembled, showing much better cycle performance for the 5 μm (101)-inclined Zn metal anode as compared to the commercialized 10 μm Zn metal foil, with a maximum specific capacity of 359 mAh/g and >170 mAh/g after over 300 cycles. We hope this study will spur further interest in the control of surface crystallographic orientation for a stable ultrathin Zn metal anode.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface Engineering for Ultrathin Metal Anodes Enabling High-Performance Zn-Ion Batteries

Zhou

Meng

et al. 2023

ACS Appl. Mater. Interfaces

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“…The rate performance measurement shows that Zn-GZH can possess a lower and more stable voltage hysteresis at currents ranging from 0.5 to 20 mA cm –2 (Figure S19e). The electrochemical performance of Zn-GZH is superior to the recently reported Zn protective layers under mildly acidic conditions (Figure g). ,,,,− According to the previous analyses, the improvement of electrode stability by the dielectric–metallic ultrathin film can be attributed to the intrinsic high permittivity, high breakdown voltage, and good interfacial compatibility, which can effectively block the electron pathways, reduce side reactions, and further ensure electrochemical reversibility …”

mentioning

confidence: 78%

“…Various strategies are being employed to improve the stability of Zn metal anode, such as electrolyte optimization, hierarchical Zn host design, and artificial layer coatings. − Among them, an artificial solid-electrolyte interface on the Zn surface has proven effective in enhancing the anode reversibility. Protective layers have two major working mechanisms.…”

mentioning

confidence: 99%

Dielectric–Metallic Double-Gradient Composition Design for Stable Zn Metal Anodes

et al. 2023

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The commercial implementation of aqueous Zn-ion batteries is being impeded by the rampant dendrite growth and exacerbated side reactions on the Zn metal anodes. Herein, a 60 nm artificial protective layer with spatial dielectric–metallic gradient composition (denoted as GZH) is developed via Zn and HfO2 cosputtering. In this design, the top HfO2 layer with high permittivity and low electronic conductivity effectively suppresses hydrogen evolution. The intermediate Zn-rich oxide region promotes the dendrite-free Zn deposition and reinforces the contact between Zn and the sputtered layer. This design allows stable battery operation at high currents. Symmetric cells with Zn-GZH exhibit stable voltage separation over 500 h at 10 mA cm–2 with a cutoff capacity of 5 mAh cm–2. When paired with a vanadate cathode, the full-cell battery delivers a capacity retention of around 75% after 2000 cycles. This design concept may apply to other aqueous metal batteries.

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Toward Forty Thousand‐Cycle Aqueous Zinc‐Iodine Battery: Simultaneously Inhibiting Polyiodides Shuttle and Stabilizing Zinc Anode through a Suspension Electrolyte

Chen

Kang

Yang

et al. 2023

Adv Funct Materials

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Aqueous zinc-iodine (Zn-I 2 ) batteries are promising candidates for gridscale energy storage due to their safety and cost-effectiveness. However, the shuttle effect of polyiodides, Zn corrosion, and accumulation of by-products restrict their applications. Herein, a simple vermiculite nanosheets (VS) suspension electrolyte is designed for simultaneous confinement of polyiodides and stabilization of Zn anode. It is found that the generation of I 5 − as dominant intermediate and the precipitation reaction between I 5 − and alkaline by-products should cause irreversible iodine species loss. Benefiting from the high binding energy between polyiodides and silica-oxygen bonds of VS, dissolved polyiodides are effectively anchored on the surface of VS suspended in the bulk electrolyte to suppress the shuttle effect, which is confirmed by in situ Raman, Ultraviolet-visible characterizations and theoretical calculations. Furthermore, the self-assembly VS interfacial layer on the surface of Zn anode hinders side reactions induced by polyiodides. Meanwhile, the interlayer and surface excess negative charges of VS tend to be compensated by Zn 2+ from diffuse layer, which serves as ion accelerators for transferring Zn 2+ at the interface immediately, rendering dendrite-free Zn plating/stripping behavior. Consequently, the Zn-I 2 battery with VS electrolyte achieves an ultra-long lifespan of 40000 cycles with a negligible capacity decay at 20 C.

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Constructing fast-ion-conductive disordered interphase for high-performance zinc-ion and zinc-iodine batteries

Cited by 69 publications

References 57 publications

Surface Engineering for Ultrathin Metal Anodes Enabling High-Performance Zn-Ion Batteries

Surface Engineering for Ultrathin Metal Anodes Enabling High-Performance Zn-Ion Batteries

Dielectric–Metallic Double-Gradient Composition Design for Stable Zn Metal Anodes

Toward Forty Thousand‐Cycle Aqueous Zinc‐Iodine Battery: Simultaneously Inhibiting Polyiodides Shuttle and Stabilizing Zinc Anode through a Suspension Electrolyte

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