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

Jin Lin Yang; Lingli Liu; Zehua Yu; Pengbo Chen; Jia Li; Putu Andhita Dananjaya; Eng Kang Koh; Wen Siang Lew; Kang Liu; Peihua Yang; Hong Jin Fan

doi:10.1021/acsenergylett.3c00367

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

Jin Lin Yang, Lingli Liu, Zehua Yu, Pengbo Chen, Jia Li, Putu Andhita Dananjaya, Eng Kang Koh, Wen Siang Lew, Kang Liu, Peihua Yang^*, Hong Jin Fan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

82 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2042-2050
Number of pages	9
Journal	ACS Energy Letters
Volume	8
Issue number	4
DOIs	https://doi.org/10.1021/acsenergylett.3c00367
Publication status	Published - Apr 14 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

ASJC Scopus Subject Areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsenergylett.3c00367

Cite this

@article{533879f07dc6408ba42f94be1736ff75,

title = "Dielectric-Metallic Double-Gradient Composition Design for Stable Zn Metal Anodes",

abstract = "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.",

author = "Yang, {Jin Lin} and Lingli Liu and Zehua Yu and Pengbo Chen and Jia Li and Dananjaya, {Putu Andhita} and Koh, {Eng Kang} and Lew, {Wen Siang} and Kang Liu and Peihua Yang and Fan, {Hong Jin}",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

month = apr,

day = "14",

doi = "10.1021/acsenergylett.3c00367",

language = "English",

volume = "8",

pages = "2042--2050",

journal = "ACS Energy Letters",

issn = "2380-8195",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Dielectric-Metallic Double-Gradient Composition Design for Stable Zn Metal Anodes

AU - Yang, Jin Lin

AU - Liu, Lingli

AU - Yu, Zehua

AU - Chen, Pengbo

AU - Li, Jia

AU - Dananjaya, Putu Andhita

AU - Koh, Eng Kang

AU - Lew, Wen Siang

AU - Liu, Kang

AU - Yang, Peihua

AU - Fan, Hong Jin

PY - 2023/4/14

Y1 - 2023/4/14

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85152204171&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85152204171&partnerID=8YFLogxK

U2 - 10.1021/acsenergylett.3c00367

DO - 10.1021/acsenergylett.3c00367

M3 - Article

AN - SCOPUS:85152204171

SN - 2380-8195

VL - 8

SP - 2042

EP - 2050

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 4

ER -

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

Abstract

Bibliographical note

ASJC Scopus Subject Areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this