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Gold/ultra-high molecular weight polyethylene nanocomposites for electrical energy storage: Enhanced recovery efficiency upon uniaxial deformation

Drakopoulos, Stavros X. and Manika, Georgia C. and Nogales, Aurora and Kim, Taeyong and Robbins, Andrew B. and Claudio, Gianfranco and Minnich, Austin J. and Ezquerra, Tiberio A. and Psarras, Georgios C. and Martin‐Fabiani, Ignacio and Ronca, Sara (2021) Gold/ultra-high molecular weight polyethylene nanocomposites for electrical energy storage: Enhanced recovery efficiency upon uniaxial deformation. Journal of Applied Polymer Science, 138 (42). Art. No. 51232. ISSN 0021-8995. doi:10.1002/app.51232.

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The growing demand for renewable energy sources has prompted the development of dielectric materials with the ability to store and efficiently recover electrical energy. Here, we correlate the structure and thermal conductivity of uniaxially oriented disentangled ultra-high molecular weight polyethylene (dis-UHMWPE) composites reinforced with gold nanoparticles with their electrical properties and potential application as electrical energy storage devices. Stretching increases the orientation of the polymer chains and thus the crystallinity and reduces the aggregation of gold nanoparticles while the thermal conductivity enhances significantly along the orientation axis. The structural changes driven by stretching result in two competing effects; on the one hand, the crystallinity increase reduces the permittivity of the composites and increases the resistivity, while on the other hand the recovery efficiency of oriented materials excels that of unstretched samples by up to 6 times at 5 s. Therefore, our work shows the structure–property relationship in electrical energy storage materials.

Item Type:Article
Related URLs:
URLURL TypeDescription
Drakopoulos, Stavros X.0000-0002-6798-0790
Nogales, Aurora0000-0002-2494-3551
Minnich, Austin J.0000-0002-9671-9540
Ezquerra, Tiberio A.0000-0001-9966-519X
Psarras, Georgios C.0000-0002-0539-2838
Martin‐Fabiani, Ignacio0000-0002-1977-7659
Ronca, Sara0000-0003-3434-6352
Additional Information:© 2021 The Authors. Journal of Applied Polymer Science published by Wiley Periodicals LLC. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Issue Online: 02 August 2021; Version of Record online: 02 June 2021; Manuscript accepted: 23 May 2021; Manuscript revised: 20 May 2021; Manuscript received: 15 February 2021. The authors would like to thank Dr Giuseppe Forte for the chemical synthesis of the dis-UHMWPE powder. This project has been funded by the Engineering and Physical Science Research Council (EPSRC), grant EP/K034405/1.
Funding AgencyGrant Number
Engineering and Physical Sciences Research Council (EPSRC)EP/K034405/1
Subject Keywords:dielectric properties; energy storage; nanocomposites; polyolefins; thermal properties
Issue or Number:42
Record Number:CaltechAUTHORS:20210608-071948726
Persistent URL:
Official Citation:Drakopoulos, S. X., Manika, G. C., Nogales, A., Kim, T., Robbins, A. B., Claudio, G., Minnich, A. J., Ezquerra, T. A., Psarras, G. C., Martin-Fabiani, I., Ronca, S., J Appl Polym Sci 2021, 138( 42), e51232.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:109428
Deposited By: Tony Diaz
Deposited On:09 Jun 2021 19:31
Last Modified:09 Aug 2021 21:46

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