首页|High Areal Capacity and Long Cycle Life Flexible Mild Quasi-Solid-State Ag-Zn Battery with Dendrite-Free Anode

High Areal Capacity and Long Cycle Life Flexible Mild Quasi-Solid-State Ag-Zn Battery with Dendrite-Free Anode

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Silver-zinc(Ag-Zn)batteries are a promising battery system for flexible electronics owing to their high safety,high energy density,and stable output voltage.However,poor cycling performance,low areal capacity,and inferior flexibility limit the practical application of Ag-Zn batteries.Herein,we develop a flexible quasi-solid-state Ag-Zn battery system with superior performance by using mild electrolyte and binder-free electrodes.Copper foam current collector is introduced to impede the growth of Zn dendrite,and the structure of Ag cathode is engineered by electrodeposition and chloridization process to improve the areal capacity.This novel battery demonstrates a remarkable cycle retention of 90％for 200 cycles at 3 mA cm-2.More importantly,this binder-free battery can afford a high capacity of 3.5 mAh cm-2 at 3 mA cm-2,an outstanding power density of 2.42 mW cm-2,and a maximum energy density of 3.4 mWh cm-2.An energy management circuit is adopted to boost the output voltage of a single battery,which can power electronic ink display and Bluetooth temperature and humidity sensor.The developed battery can even operate under the extreme conditions,such as being bent and sealed in solid ice.This work offers a path for designing electrodes and electrolyte toward high-performance flexible Ag-Zn batteries.

binder-free electrodesdendrite-freeflexible Ag-Zn batterymild electrolytequasi-solid-state

Yanzhe Zhu、Renbo Zhu、Fandi Chen、Shuo Zhang、Yu-Chieh Kuo、Peiyuan Guan、Mengyao Li、Yunjian Liu、Zhaojun Han、Tao Wan、Dawei Wang、Caiyun Wang、Dewei Chu

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School of Materials Science and Engineering,The University of New South Wales,Sydney,New South Wales 2052,Australia

School of Material Science and Engineering,Jiangsu University,Zhenjiang 212013,China

School of Chemical Engineering,The University of New South Wales,Sydney,New South Wales 2052,Australia

Intelligent Polymer Research Institute,AIIM,Innovation Campus,University of Wollongong,North Wollongong New South Wales 2522,Australia

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2024

10.1002/eem2.12493

能源与环境材料(英文)

能源与环境材料(英文)

ISSN：
年,卷(期)：2024.7(1)