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Bendable energy storage materials by cool science

Low-temperature synthesis of mesoporous metal oxides on flexible substrates

Date:
March 19, 2024
Source:
Pohang University of Science & Technology (POSTECH)
Summary:
Imaging being able to wear clothes that charge your gadgets just by wearing them. New research has brought us a step closer to achieving this reality.
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Imaging being able to wear your smartphone on your wrist, not as a watch, but literally as a flexible band that wraps around your arm. How about clothes that charge your gadgets just by wearing them?

Recently, a collaborative team led by Professor Jin Kon Kim and Dr. Keon-Woo Kim of Pohang University of Science and Technology (POSTECH), Professor Taesung Kim and M.S./Ph.D. student Hyunho Seok of Sungkyunkwan University (SKKU), and Professor Hong Chul Moon of University of Seoul (UOS) has brought us a step closer to achieving this reality. This research work was published in Advanced Materials.

Mesoporous metal oxides (MMOs) are characterized by pores ranging from 2 to 50 nanometers (nm) in size. Due to their extensive surface area, MMOs have various applications, such as high-performance energy storage and efficient catalysis, semiconductors, and sensors. However, the integration of MMOs on wearable and flexible devices remains a great challenge, because plastic substrates could not maintain their integrity at elevated temperatures (350°C or above) where MMOs could be synthesized.

The research team tackled this problem by using synergetic effect of heat and plasma to synthesize various MMOs including vanadium oxide (V2O5), renowned high-performance energy storage materials, V6O13, TiO2, Nb2O5, and WO3, on flexible materials at much lower temperatures (150 ~ 200 oC). The high reactive plasma chemical moieties provide enough energy that could be compensated by high temperature. The fabricated devices could be bent thousands of times without losing the energy storage performance.

Professor Jin Kon Kim, the leading researcher, expressed his opinion, stating: "We're on the brink of a revolution in wearable tech."

"Our breakthrough could lead to gadgets that are not only more flexible but also much more adaptable to our daily needs."

This research was supported by National Creative Initiative Research Program, the Basic Research in Science & Engineering Program, and the Nano & Material Technology Development Program.


Story Source:

Materials provided by Pohang University of Science & Technology (POSTECH). Note: Content may be edited for style and length.


Journal Reference:

  1. Keon‐Woo Kim, Hyunho Seok, Sihoon Son, Su‐Jeong Park, Chanwoo Yang, Dongho Lee, Hyo‐Chang Lee, Jihun Mun, Hee‐Jung Yeom, Min Young Yoon, Bomi Park, Se Hyun Kim, Changshin Jo, Hong Chul Moon, Taesung Kim, Jin Kon Kim. Low‐Temperature, Universal Synthetic Route for Mesoporous Metal Oxides by Exploiting Synergistic Effect of Thermal Activation and Plasma. Advanced Materials, 2024; DOI: 10.1002/adma.202311809

Cite This Page:

Pohang University of Science & Technology (POSTECH). "Bendable energy storage materials by cool science." ScienceDaily. ScienceDaily, 19 March 2024. <www.sciencedaily.com/releases/2024/03/240319123033.htm>.
Pohang University of Science & Technology (POSTECH). (2024, March 19). Bendable energy storage materials by cool science. ScienceDaily. Retrieved April 21, 2024 from www.sciencedaily.com/releases/2024/03/240319123033.htm
Pohang University of Science & Technology (POSTECH). "Bendable energy storage materials by cool science." ScienceDaily. www.sciencedaily.com/releases/2024/03/240319123033.htm (accessed April 21, 2024).

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