Shear-flow induced alignment of graphene enables the closest packing crystallography of the (002) textured zinc metal anode with high reversibility

Xi, Murong; Liu, Zhenjie; Wang, Wei; Qi, Zihan; Sheng, Rui; Ding, Juan; Huang, Yudai; Guo, Zaiping

doi:10.1039/d3ee04360f

Cited by 6 publications

(2 citation statements)

References 46 publications

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“…Encouragingly, employing Cu as a substrate to support graphene can also promote orientational deposition. [104] Exploring the epitaxial deposition of composite substrate formed by 2D materials and Cu holds promise for future exploration. Furthermore, there is limited research on the heteroepitaxy of Zn on other metal substrates.…”

Section: Heteroepitaxial Depositionmentioning

confidence: 99%

Crystallographic Manipulation Strategies toward Reversible Zn Anode with Orientational Deposition

Yang,

Dong,

Weng

et al. 2024

Advanced Energy Materials

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The reversibility and sustainability of Zn anode are greatly hampered by the dendrite growth and side reactions. Orientational deposition, which allows the assembly of Zn deposits in a highly ordered and compact manner, offers a solution to these issues by enabling dendrite‐free Zn anodes. Moreover, Zn orientational deposition can effectively inhibit side reaction by reducing the exposed surface area of the electrode. Despite significant progress in the field of Zn orientational deposition, there is still a lack of clear guidelines for regulating the orientation, and the underlying mechanisms remain rather elusive. Therefore, a comprehensive review is urgently needed to provide a mechanistic insight into Zn orientational deposition. This review summarizes the burgeoning strategies for steering Zn orientational deposition, categorizing the corresponding mechanisms into five aspects: heteroepitaxial deposition, homoepitaxial deposition, interfacial cultivation, crystal facet anchoring, and current density regulation. The distinct advantages and limitations of each mechanism in controlling the growth orientation are discussed in detail. Finally, the challenges and future trends pertaining to Zn orientational deposition are envisaged, aiming in essence to realize highly reversible Zn anodes and ultimately bridge the gap between reality and ideal in aqueous Zn‐ion batteries.

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Section: Heteroepitaxial Depositionmentioning

confidence: 99%

Crystallographic Manipulation Strategies toward Reversible Zn Anode with Orientational Deposition

Yang,

Dong,

Weng

et al. 2024

Advanced Energy Materials

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“…Aqueous Zn batteries (AZBs) appear to have very good prospects for renewable energy storage at grid scale due to their superiority in safety and costs. 1–5 Renewable energy such as wind and tide have intrinsic fluctuation and intermittence, which calls for AZBs with both fast-charging capability and long life-span. 6–8 However, the fast-charging and cycling performance of AZBs have long been restricted by the low reversibility of Zn metal anode materials under high-rate working conditions.…”

mentioning

confidence: 99%

Fast-charging aqueous batteries enabled by a three-dimensional ordered Zn anode at deliberate concentration polarization

Li,

Mao,

et al. 2024

Chem. Commun.

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Weakening the Space Charge Layer Effect Through Tethered Anion Electrolyte and Piezoelectric Effect Toward Ultra‐Stable Zinc Anode

Wen,

Hu,

Wang

et al. 2024

Advanced Materials

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The space charge layer (SCL) dilemma, caused by mobile anion concentration gradient and the rapid consumption of cations, is the fundamental reason for the generation of zinc dendrites, especially under high‐rate discharge conditions. To address the issue, a physical (PbTiO3)/chemical (AMPS‐Zn) barrier is designed to construct stable zinc ion flow and disrupt the gradient of anion concentration by coupling the ferroelectric effect with tethered anion electrolyte. The ferroelectric materials PbTiO3 with extreme‐high piezoelectric constant can spontaneously generate an internal electric field to accelerate the movement of zinc ions, and the polyanionic polymer AMPS‐Zn can repel mobile anions and disrupt the anions concentration gradient by tethering anions. Through numerical simulations and analyses, it is discovered that a high Zn2+ transference number can effectively weaken the SCL, thus suppressing the occurrence of zinc dendrites and parasitic side reactions. Consequently, an asymmetric cell using the PbTiO3@Zn demonstrates a reversible plating/stripping performance for 2900 h, and an asymmetric cell reaches a state‐of‐the‐art runtime of 3450 h with a high average Coulombic efficiency of 99.98%. Furthermore, the PbTiO3@Zn/I2 battery demonstrated an impressive capacity retention rate of 84.0% over 65000 cycles by employing a slender Zn anode.

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Shear-flow induced alignment of graphene enables the closest packing crystallography of the (002) textured zinc metal anode with high reversibility

Abstract: The crystallographic orientation of Zn metal is related to its deposition pattern, plating/stripping reversibility as well as HER and corrosion. Herein, theoretical calculations show (002) crystal plane of Zn metal...

Cited by 6 publications

References 46 publications

Crystallographic Manipulation Strategies toward Reversible Zn Anode with Orientational Deposition

Crystallographic Manipulation Strategies toward Reversible Zn Anode with Orientational Deposition

Fast-charging aqueous batteries enabled by a three-dimensional ordered Zn anode at deliberate concentration polarization

Weakening the Space Charge Layer Effect Through Tethered Anion Electrolyte and Piezoelectric Effect Toward Ultra‐Stable Zinc Anode

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