A durable ZnS cathode for aqueous Zn-S batteries

Dongdong Liu; Bin He; Yun Zhong; Jie Chen; Lixia Yuan; Zhen Li; Yunhui Huang

doi:10.1016/j.nanoen.2022.107474

A durable ZnS cathode for aqueous Zn-S batteries

Dongdong Liu, Bin He, Yun Zhong, Jie Chen, Lixia Yuan, Zhen Li, Yunhui Huang

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

55 Scopus citations

Abstract

Traditional aqueous zinc-ion batteries suffer from an unsatisfactory energy density due to the limited specific capacity of cathode. Zn-S battery shows a high energy density due to the high theoretical capacity of S (1675 mAh g−1). However, the sluggish redox kinetics and large volume evolution hinder its practical application. To tackle these problems, we propose a nanoscale ZnS packed and connected by carbon sheath (ZnS@CF) as the cathode. By introducing iodinated thiourea as a redox mediator, the activation barrier of ZnS@CF is reduced to 1.26 V. The ZnS@CF cathode delivers an extraordinary capacity of 465 mAh gZnS−1, a high specific energy density of 274 Wh kgZnS−1 (832 Wh kgS−1) and excellent rate performance (197 mAh gZnS−1 at 9.04 C). This work provides a promising high performance cathode and strategies to improve the kinetics and cycle stability of Zn-S batteries.

Original language	English (US)
Journal	Nano Energy
Volume	101
DOIs	https://doi.org/10.1016/j.nanoen.2022.107474
State	Published - Oct 1 2022
Externally published	Yes

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.nanoen.2022.107474

Cite this

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title = "A durable ZnS cathode for aqueous Zn-S batteries",

abstract = "Traditional aqueous zinc-ion batteries suffer from an unsatisfactory energy density due to the limited specific capacity of cathode. Zn-S battery shows a high energy density due to the high theoretical capacity of S (1675 mAh g−1). However, the sluggish redox kinetics and large volume evolution hinder its practical application. To tackle these problems, we propose a nanoscale ZnS packed and connected by carbon sheath (ZnS@CF) as the cathode. By introducing iodinated thiourea as a redox mediator, the activation barrier of ZnS@CF is reduced to 1.26 V. The ZnS@CF cathode delivers an extraordinary capacity of 465 mAh gZnS−1, a high specific energy density of 274 Wh kgZnS−1 (832 Wh kgS−1) and excellent rate performance (197 mAh gZnS−1 at 9.04 C). This work provides a promising high performance cathode and strategies to improve the kinetics and cycle stability of Zn-S batteries.",

author = "Dongdong Liu and Bin He and Yun Zhong and Jie Chen and Lixia Yuan and Zhen Li and Yunhui Huang",

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doi = "10.1016/j.nanoen.2022.107474",

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TY - JOUR

T1 - A durable ZnS cathode for aqueous Zn-S batteries

AU - Liu, Dongdong

AU - He, Bin

AU - Zhong, Yun

AU - Chen, Jie

AU - Yuan, Lixia

AU - Li, Zhen

AU - Huang, Yunhui

N1 - Generated from Scopus record by KAUST IRTS on 2023-09-20

PY - 2022/10/1

Y1 - 2022/10/1

N2 - Traditional aqueous zinc-ion batteries suffer from an unsatisfactory energy density due to the limited specific capacity of cathode. Zn-S battery shows a high energy density due to the high theoretical capacity of S (1675 mAh g−1). However, the sluggish redox kinetics and large volume evolution hinder its practical application. To tackle these problems, we propose a nanoscale ZnS packed and connected by carbon sheath (ZnS@CF) as the cathode. By introducing iodinated thiourea as a redox mediator, the activation barrier of ZnS@CF is reduced to 1.26 V. The ZnS@CF cathode delivers an extraordinary capacity of 465 mAh gZnS−1, a high specific energy density of 274 Wh kgZnS−1 (832 Wh kgS−1) and excellent rate performance (197 mAh gZnS−1 at 9.04 C). This work provides a promising high performance cathode and strategies to improve the kinetics and cycle stability of Zn-S batteries.

AB - Traditional aqueous zinc-ion batteries suffer from an unsatisfactory energy density due to the limited specific capacity of cathode. Zn-S battery shows a high energy density due to the high theoretical capacity of S (1675 mAh g−1). However, the sluggish redox kinetics and large volume evolution hinder its practical application. To tackle these problems, we propose a nanoscale ZnS packed and connected by carbon sheath (ZnS@CF) as the cathode. By introducing iodinated thiourea as a redox mediator, the activation barrier of ZnS@CF is reduced to 1.26 V. The ZnS@CF cathode delivers an extraordinary capacity of 465 mAh gZnS−1, a high specific energy density of 274 Wh kgZnS−1 (832 Wh kgS−1) and excellent rate performance (197 mAh gZnS−1 at 9.04 C). This work provides a promising high performance cathode and strategies to improve the kinetics and cycle stability of Zn-S batteries.

UR - https://linkinghub.elsevier.com/retrieve/pii/S2211285522005523

UR - http://www.scopus.com/inward/record.url?scp=85132935301&partnerID=8YFLogxK

U2 - 10.1016/j.nanoen.2022.107474

DO - 10.1016/j.nanoen.2022.107474

M3 - Article

SN - 2211-2855

VL - 101

JO - Nano Energy

JF - Nano Energy

ER -

A durable ZnS cathode for aqueous Zn-S batteries

Abstract

ASJC Scopus subject areas

UN SDGs

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