Assessment of a Cyclic Bending Test Method for Printed Flexible Supercapacitor

Zhao Fu, Aarne Jauho, Kaisa Leena Vaisanen, Marja Valimaki, Jari Keskinen, Matti Mantysalo

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

Printed flexible supercapacitor (SC) is seen as an attractive alternative to replace batteries as energy storage unit in energy autonomous sensors. This paper assesses a cyclic bending test method for printed flexible SC. The test is evaluated using four material stacks for printed SC in five different bending radii. The measurement system analysis (MSA) found that the calculated bending radii under all test conditions exhibit variation within a range of 0.3 mm, and the variation takes up less than 8% of bending radius. The measurement system is subjected to 9% total variation, which is within acceptable range. The variation was mainly caused by the uneven thickness distribution across the SC due to its structure. Thus, the variation caused by the test method and measurement is even smaller. In addition, the SC's bending radius subjected to even smaller variation in cyclic bending test. These indicate that this test method is highly reliable and repeatable for evaluating flexible SC.

Original languageEnglish
Title of host publicationProceedings of the IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2022
PublisherIEEE Institute of Electrical and Electronic Engineers
Number of pages4
ISBN (Electronic)978-1-66544-273-2
DOIs
Publication statusPublished - 2022
MoE publication typeA4 Article in a conference publication
Event2022 IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2022 - Vienna, Austria
Duration: 10 Jul 202213 Jul 2022

Conference

Conference2022 IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2022
Country/TerritoryAustria
CityVienna
Period10/07/2213/07/22

Keywords

  • cyclic bending test
  • flexible electronics
  • printed electronics
  • supercapacitor

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