Presentation Details
3D-Printed Zn-Ion Microbatteries
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Updated Time：2021-06-26 16:22:21
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Abstract
Rechargeable Zn ion microbatteries are regarded as a preferable candidate for next-generation micro-energy storage systems owing to their merits of environmental benignity, low cost, and high safety. Nevertheless, unsatisfactory cycling stability
stemming from dendrite growth and undesired side reactions of Zn anodes prevent their widespread commercial adoption. Here, a novel 3D Zn metal anode with multi-channel lattice structures employing the combined 3D printing and electroless plating/electroplating techniques is reported. The constructed 3D Ni–Zn microelectrode with multi-channel lattice structure and super-hydrophilic surface can effectively ameliorate the electric-field distribution and induce the uniform deposition of Zn without Zn dendrite growth, as confirmed by simulation of current density distribution of the electrode in electrolyte and in situ
microscopic observation of Zn plating/stripping. As expected, the 3D Ni–Zn cell shows highly reversible Zn plating/stripping with satisfactory Coulombic efficiency due to the low Zn nucleation overpotential and homogeneous distribution of localized electric field. Consequently, a full cell built with a 3D printed Zn anode and polyaniline-intercalated vanadium oxide cathode exhibits remarkable performance. The simple and cost-effective fabrication of conductive metal lattices with tunable 3D multi-channel architecture opens up new opportunities to develop other high-performance metal (such as Li, Na, K, Mg, Al) microbatteries.
stemming from dendrite growth and undesired side reactions of Zn anodes prevent their widespread commercial adoption. Here, a novel 3D Zn metal anode with multi-channel lattice structures employing the combined 3D printing and electroless plating/electroplating techniques is reported. The constructed 3D Ni–Zn microelectrode with multi-channel lattice structure and super-hydrophilic surface can effectively ameliorate the electric-field distribution and induce the uniform deposition of Zn without Zn dendrite growth, as confirmed by simulation of current density distribution of the electrode in electrolyte and in situ
microscopic observation of Zn plating/stripping. As expected, the 3D Ni–Zn cell shows highly reversible Zn plating/stripping with satisfactory Coulombic efficiency due to the low Zn nucleation overpotential and homogeneous distribution of localized electric field. Consequently, a full cell built with a 3D printed Zn anode and polyaniline-intercalated vanadium oxide cathode exhibits remarkable performance. The simple and cost-effective fabrication of conductive metal lattices with tunable 3D multi-channel architecture opens up new opportunities to develop other high-performance metal (such as Li, Na, K, Mg, Al) microbatteries.
Keywords
3D printing,;3D metal lattices,;Zn anodes,;Zn ion microbattery
Speaker
张冠华
副教授 湖南大学张冠华，女，河南平顶山人，博士，副教授，岳麓学者，主要研究方向包括3D打印、激光微纳制造、电化学复合加工等先进微纳加工制造技术在新型高效动力电池、芯片储能及柔性透明智能电子器件等方面的研究。相关成果以第一作者或通讯作者身份发表学术论文60余篇，其中影响因子大于10.0的16篇，ESI高被引论文5篇，ESI热点论文1篇，期刊Top 10热点论文1篇，期刊最佳论文1篇。
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Important Date
-
Conference Date
Jul 17
2021
toJul 18
2021
-
Jul 10 2021
Contribution Submission Deadline
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Jul 18 2021
Registration deadline
Sponsored By
中国微米纳米技术学会
中国微米纳米技术学会青年工作委员会
中国微米纳米技术学会青年工作委员会
Organized By
重庆大学
Contact Information
- 余 华
- yu******@cqu.edu.cn
- +86********
Previous Conferences
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2021-04-24 China 南京市(Nanjing)
中国微米纳米技术学会第六届青年科学家论坛（南京）
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