Optimal Design Towards High Performance of Sandwich Flexible Piezoelectric Energy Harvesters

doi:10.1115/1.4056818

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Optimal Design Towards High Performance of Sandwich Flexible Piezoelectric Energy Harvesters
	Li QL(李沁蓝); Li S(李爽); Zhou LQ(周联巧); Cao XF(曹馨芳); Lan YQ(蓝昱群); Xu XK(徐新凯); Huang, YongAn ; Chen, Yuli ; Zhao, Yong ; Huang, Chengjun
刊名	JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME ; 6
	2023-06
卷号	90 页码:61007
关键词	piezoelectric energy harvesting piezoelectric analytic model wearable electronic implantable electronic sandwich structure structural optimization elasticity structures
ISSN号	0021-8936
DOI	10.1115/1.4056818
英文摘要	The flexible piezoelectric energy harvester (FPEH), as an effective strategy for long-term power supply of implantable and wearable electronics, requires high areal output energy density, low mechanical stiffness, and high energy efficiency, simultaneously. The widely adopted sandwich FPEH, consisting of one relatively hard substrate sandwiched between two piezoelectric films, can provide a high areal output energy density, but also high mechanical stiffness and low energy efficiency due to its energy-wasting deformation of the hard substrate. Here, we propose a novel optimal soft-substrate sandwich FPEH with designs of sufficient length and optimized Young's modulus of the substrate, which is much smaller than that of the piezoelectric film. A sandwich beam model considering both the bending and shearing of the soft substrate and the one-way coupling of the piezoelectric effect was adopted for the theoretical analysis and optimal design. The optimal soft-substrate sandwich FPEH exhibits greatly improved overall performance with a 33% increase in areal output energy density, a 51% reduction in mechanical stiffness, and a 177% increase in energy efficiency, simultaneously. Systematic theoretical analysis is performed to illustrate the mechanism and guide the optimal design. The novel optimal soft-substrate sandwich FPEH is then applied to harvesting energy from various living subjects. This optimal design can be extended to other types of mechanical energy harvesters with a similar laminated structure.
分类号	一类/力学重要期刊
WOS研究方向	WOS:000978757500003
语种	英语
资助机构	National Natural Science Foundation of China [12172359] ; Beijing Municipal Natural Science Foundation [2202066] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences [ZDBS-LY-JSC014] ; CAS Interdisciplinary Innovation Team [JCTD-2020-03]
其他责任者	Su, YW
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92215]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.(Yang Ya) Chinese Acad Sci Beijing Inst Nanoenergy & Nanosyst CAS Ctr Excellence Nanosci Beijing Key Lab Micronano Energy & Sensor Beijing 101400 Peoples R China 2.(Wei Yanpeng) Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing 100190 Peoples R China 3.(Huang Chengjun) Chinese Acad Sci Inst Microelect R&D Ctr Healthcare Elect Beijing 100029 Peoples R China 4.(Zhao Yong) Beihang Univ Sch Chem Key Lab Bioinspired Smart Interfacial Sci & Techno Minist Educ Beijing 100191 Peoples R China 5.(Chen Yuli) Beihang Univ Inst Solid Mech Beijing 100191 Peoples R China 6.(Huang YongAn) Huazhong Univ Sci & Technol Flexible Elect Res Ctr State Key Lab Digital Mfg Equipment & Technol Wuhan 430074 Peoples R China 7.(Li Qinlan, Li Shuang, Zhou Lianqiao, Cao Xinfang, Lan Yuqun, Xu Xinkai, Su Yewang) Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 8.(Li Qinlan, Li Shuang, Zhou Lianqiao, Cao Xinfang, Lan Yuqun, Xu Xinkai, Su Yewang) Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China
推荐引用方式 GB/T 7714	Li QL,Li S,Zhou LQ,et al. Optimal Design Towards High Performance of Sandwich Flexible Piezoelectric Energy Harvesters[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 6,2023,90:61007.
APA	李沁蓝.,李爽.,周联巧.,曹馨芳.,蓝昱群.,...&苏业旺.(2023).Optimal Design Towards High Performance of Sandwich Flexible Piezoelectric Energy Harvesters.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,90,61007.
MLA	李沁蓝,et al."Optimal Design Towards High Performance of Sandwich Flexible Piezoelectric Energy Harvesters".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 90(2023):61007.