A Flexible and Safe Planar Zinc-Ion Micro-Battery with Ultrahigh Energy Density Enabled by Interfacial Engineering for Wearable Sensing Systems

Xinze Cai; Ying Liu; Jiajia ZhaFeipeng TanBingyao ZhangWeibin YanJiangqi ZhaoBingan LuJiang ZhouChaoliang Tan

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A Flexible and Safe Planar Zinc-Ion Micro-Battery with Ultrahigh Energy Density Enabled by Interfacial Engineering for Wearable Sensing Systems

机译：A Flexible and Safe Planar Zinc-Ion Micro-Battery with Ultrahigh Energy Density Enabled by Interfacial Engineering for Wearable Sensing Systems

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Aqueous zinc-ion micro-batteries (ZIMBs) have attracted considerable attentionowing to their reliable safety, low cost, and great potential for wearabledevices. However, current ZIMBs still suffer from various critical issues,including short cycle life, poor mechanical stability, and inadequate energydensity. Herein, the fabrication of flexible planar ZIMBs with ultrahigh energydensity by interfacial engineering in the screen-printing process based on highperformanceMnO_2-based cathode materials is reported. The Ce-doped MnO_2(Ce-MnO_2) exhibits significantly enhanced capacity (389.3 mAh g~(?1)), considerablerate capability and admirable cycling stability than that of the pureMnO2. Importantly, the fabrication of micro-electrodes with ultrahigh massloading of Ce-MnO_2 (24.12 mg cm~(?2)) and good mechanical stability is achievedthrough optimizing the interfacial bonding between different printed layers.The fabricated planar ZIMBs achieve a record high capacity (7.21 mAh cm~(?2) or497.31 mAh cm~(?3)) and energy density (8.43 mWh cm~(?2) or 573.45 mWh cm~(?3)),as well as excellent flexibility. Besides, a wearable self-powered sensing systemfor environmental monitoring is further demonstrated by integrating the planarZIMBs with flexible solar cells and a multifunctional sensor array. This worksheds light on the development of high-performance planar ZIMBs for futureself-powered and eco-friendly smart wearable electronics.

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来源
《Advanced functional materials》 |2023年第29期|2303009.1-2303009.11|共11页
作者
Xinze Cai; Ying Liu; Jiajia ZhaFeipeng TanBingyao ZhangWeibin YanJiangqi ZhaoBingan LuJiang ZhouChaoliang Tan;
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作者单位

College of Materials Science and EngineeringSichuan UniversityChengdu 610065, China;

Department of Materials Science and EngineeringCity University of Hong Kong83 Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China;

School of Materials Science and EngineeringHunan Provincial Key Laboratory of Electronic Packagingand Advanced Functional MaterialsCentral South UniversityChangsha 410083, ChinaCollege of Materials Science and EngineeringSichuan UniversityChengdu 610065, China,Engineering Research Center of Alternative Energy Materials and DevicesMinistry of EducationChengdu 610065, ChinaSchool of Physics and ElectronicsHunan UniversityChangsha 410082, ChinaDepartment of Chemistry and Center of Super-Diamondand Advanced Films (COSDAF)City University of Hong KongKowloon, Hong Kong SAR 999077, China;

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high energy density; interface engineering; screen-printing; self-powered sensing systems; zinc-ion micro-batteries;

A Flexible and Safe Planar Zinc-Ion Micro-Battery with Ultrahigh Energy Density Enabled by Interfacial Engineering for Wearable Sensing Systems

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