Liquid-Metal-Filled Porous Elastomers for Highly Stretchable and High-Output Triboelectric Nanogenerators toward Wearable Electronics and Self-Powered Sensors.

Siyu Du, Xiaohu Li, Jing Wang, Zhenke Chen, Yongri Liang, Xueai Li, Yingdan Liu

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Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Siyu DuCenter for Advanced Structural Materials, State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, P.R. China.

Xiaohu LiCenter for Advanced Structural Materials, State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, P.R. China.

Jing WangCenter for Advanced Structural Materials, State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, P.R. China.

Zhenke ChenCenter for Advanced Structural Materials, State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, P.R. China.

Yongri LiangCenter for Advanced Structural Materials, State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, P.R. China.ORCID https://orcid.org/0000-0003-3576-613X

Xueai LiHebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China.ORCID https://orcid.org/0000-0002-8224-0547

Yingdan LiuCenter for Advanced Structural Materials, State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, P.R. China.ORCID https://orcid.org/0000-0002-5826-0505

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Driven by the development of next-generation wearable and skin-attachable electronics, there is an escalating need for flexible self-powered systems, particularly for triboelectric nanogenerators (TENGs) that possess optimal dielectric properties and robust charge storage capabilities. However, it is challenging to achieve mechanical softness, high stretchability, and stable electrical outputs under continuous deformation due to the issue of structural failure under severe strains. Herein, we present a liquid-metal-filled porous elastomer (LMPE) architecture fabricated by foaming an Ecoflex 00-30 matrix using an aqueous suspension of LM droplets. In this structure, oxide-encapsulated LM microdroplets are strictly confined within independent pores of the matrix. This unique structural design enables the LMPE to simultaneously achieve skin-like mechanical compliance, stable dielectric properties, and superior triboelectric performance. The LMPE exhibits a low Young's modulus of ∼70-125 kPa and an exceptional fracture strain of up to ∼650%, enabling robust operation under repetitive deformation. Consequently, the LMPE-TENG delivers an open-circuit voltage of ∼169 V, a short-circuit current of ∼9.5 μA, a transferred charge of ∼63 nC, and a peak power density of 42.63 W·m

Identifiers

PMID42568993

DOI10.1021/acsomega.6c04960

PMCPMC13448918

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LicenceCC BY-NC-ND

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.