首页|High areal energy zinc-ion micro-batteries enabled by 3D printing

High areal energy zinc-ion micro-batteries enabled by 3D printing

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Rechargeable zinc-ion micro-batteries(ZIMBs)are promising candidates for powering various microelec-tronic devices,although they typically exhibit low areal energy of～0.1 mWh cm-2.In this study,we reported the design and assembly of zinc micro-batteries through an ink extrusion-based printing ap-proach.In the process,a three-axis printer was adopted,allowing for the fabrication of microelectrodes with large areal loading and diverse morphologies.Vanadium oxide anchored with carbon nanotubes was employed as the cathode material,zinc powder was used as the anode material,and a polyacrylamide gel containing ethylene glycol was selected as the electrolyte.The printed micro-batteries demonstrate an areal capacity of 0.51 mAh cm-2 and an energy density of 0.37 mWh cm-2 at a charge-discharge cur-rent of 0.2 mA,outperforming state-of-the-art zinc counterparts.This work provides a simple yet efficient solution to the development of high-energy micro-batteries.

MicrobatteryZinc-ion battery3D printingAreal energy

Junbing Zhu、Wenxi Hu、Jiangfeng Ni、Liang Li

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School of Physical Science and Technology,Center for Energy Conversion Materials & Physics(CECMP),Jiangsu Key Laboratory of Thin Films,Jiangsu Key Laboratory of Advanced Negative Carbon Technologies,Soochow University,Suzhou 215006,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu ProvincePriority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions

52372213521722195187219252025028BK20180002

2024

10.1016/j.jmst.2024.01.053

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.196(29)