Safe energy-storage mechanical metamaterials via architecture design

IF 1.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
Junjie You, Chengyu Wang, Li Ma, S. Yin
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引用次数: 2

Abstract

Mechanical and functional properties of metamaterials could be simultaneously manipulated via their architectures. This study proposes multifunctional metamaterials possessing both load-bearing capacity and energy storage capability, comprising multi-phase lattice metamaterial and cylindrical battery cells. Defect phase are incorporated into the metamaterials, which are then printed with stainless steel powder. The printed metamaterials are assembled with battery cells and compressed. Experimental results revealed that the voids in the lattice metamaterials, could guide deformation mode away from the internal battery cell that postponed the emergence of battery short-circuit. Effects of void phase pattern and content are discussed by simulation. We found that the multifunctional system could absorb greater energy after defect phase incorporation, as designed with proper void phase pattern and content. Also, these findings are further validated for the system with six battery cells. This study demonstrated how to design an energy-storage metamaterials with enhanced mechanical properties and battery safety simultaneously. Also, defect engineering was helpful for battery protection and energy absorption of the multifunctional system.
基于建筑设计的安全储能机械超材料
超材料的力学和功能特性可以通过其结构同时被操纵。本研究提出了兼具承载能力和储能能力的多功能超材料,包括多相晶格超材料和圆柱形电池芯。将缺陷相整合到超材料中,然后用不锈钢粉进行打印。打印的超材料与电池单元组装并压缩。实验结果表明,晶格超材料中的空隙可以引导变形模式远离电池内部,从而延缓电池短路的出现。通过仿真,讨论了空洞相型和空洞含量的影响。研究发现,采用适当的空穴相模式和空穴相含量设计缺陷相后,多功能体系能吸收更大的能量。此外,这些发现在具有六个电池单元的系统中得到了进一步验证。本研究展示了如何设计一种同时具有增强机械性能和电池安全性的储能超材料。缺陷工程对多功能系统的电池保护和能量吸收也有帮助。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
EPJ Applied Metamaterials
EPJ Applied Metamaterials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.10
自引率
6.20%
发文量
16
审稿时长
8 weeks
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