Non-flammable free-standing TiO2 nanotubular hybrid membrane prepared by a two-step anodization

Suriyakumar Dasarathan; Junghwan Sung; Mukarram Ali; Jun-Woo Park; Doohun Kim

Electrochemistry Communications (Jun 2023)

Non-flammable free-standing TiO2 nanotubular hybrid membrane prepared by a two-step anodization

Suriyakumar Dasarathan,
Junghwan Sung,
Mukarram Ali,
Jun-Woo Park,
Doohun Kim

Affiliations

Suriyakumar Dasarathan: Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea; Department of Electro-Functionality Materials Engineering, University of Science and Technology (UST), Daejeon 305-333, Republic of Korea
Junghwan Sung: Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea; Department of Electro-Functionality Materials Engineering, University of Science and Technology (UST), Daejeon 305-333, Republic of Korea
Mukarram Ali: Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea; Department of Electro-Functionality Materials Engineering, University of Science and Technology (UST), Daejeon 305-333, Republic of Korea
Jun-Woo Park: Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea; Department of Electro-Functionality Materials Engineering, University of Science and Technology (UST), Daejeon 305-333, Republic of Korea
Doohun Kim: Corresponding author at: Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea.; Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea; Department of Electro-Functionality Materials Engineering, University of Science and Technology (UST), Daejeon 305-333, Republic of Korea

Journal volume & issue: Vol. 151
p. 107498

Abstract

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In this study, we introduce a novel method for synthesizing a free-standing, high-aspect-ratio TiO2 nanotubular (TNT) hybrid membrane. The TNT membrane was fabricated using a two-step electrochemical anodization process, incorporating lactic acid as an additive to enhance mechanical properties and growth rate. The membrane was then hybridized with a rubber polymer binder. The high aspect ratio and structural integrity of the TiO2 nanotubular hybrid membrane make it an ideal candidate for improving non-flammable properties when employed as a ceramic separator. Flame retardation tests revealed that the TNT hybrid membrane kept its structural integrity even after prolonged exposure to flame. These findings suggest that this hybrid membrane could be a valuable addition to the field of secondary batteries, offering potential applications in enhancing battery safety and performance.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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