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

作　　者：Junbing Zhu Wenxi Hu Jiangfeng Ni Liang Li 

机构地区：[1]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

出　　处：《Journal of Materials Science & Technology》2024年第29期183-189,共7页材料科学技术(英文版)

基　　金：supported by grants from the National Natu-ral Science Foundation of China(Grant Nos.52372213,52172219,51872192,and 52025028);the Natural Science Foundation of Jiangsu Province(Grant No.BK20180002);the Priority Aca-demic Program Development(PAPD)of Jiangsu Higher Education Institutions.

摘　　要：Rechargeable zinc-ion micro-batteries(ZIMBs)are promising candidates for powering various microelectronic 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 approach.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 current 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.

关 键 词：MICROBATTERY Zinc-ion battery 3D printing Areal energy 

分 类 号：TB3[一般工业技术—材料科学与工程]