DataVXAdvanced MaterialsPaper
journal article·2020-12Open access

100 m Long Thermally Drawn Supercapacitor Fibers with Applications to 3D Printing and Textiles

Tural Khudiyev, Jung Tae Lee, Jason R. Cox, Eric Argentieri, Gabriel Loke, Rodger Yuan, Grace H. Noel, Ryoichi Tatara, Yang Yu, Frannie Logan, John Joannopoulos, Yang Shao‐Horn, Yoel Fink

Advanced Materials· Volume 32· Issue 49
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Source abstract

Abstract

Abstract Supercapacitor fibers, with short charging times, long cycle lifespans, and high power densities, hold promise for powering flexible fabric‐based electronics. To date, however, only short lengths of functioning fiber supercapacitors have been produced. The primary goal of this study is to introduce a supercapacitor fiber that addresses the remaining challenges of scalability, flexibility, cladding impermeability, and performance at length. This is achieved through a top‐down fabrication method in which a macroscale preform is thermally drawn into a fully functional energy‐storage fiber. The preform consists of five components: thermally reversible porous electrode and electrolyte gels; conductive polymer and copper microwire current collectors; and an encapsulating hermetic cladding. This process produces 100 m of continuous functional supercapacitor fiber, orders of magnitude longer than any previously reported. In addition to flexibility (5 mm radius of curvature), moisture resistance (100 washing cycles), and strength (68 MPa), these fibers have an energy density of 306 μWh cm−2 at 3.0 V and ≈100% capacitance retention over 13 000 cycles at 1.6 V. To demonstrate the utility of this fiber, it is machine‐woven and used as filament for 3D printing.
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Research context

Energy storagePolymersMaterials processing

OpenAlex topics: Supercapacitor Materials and Fabrication · Electrospun Nanofibers in Biomedical Applications · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research Laboratory of Electronics Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA

Department of Plant and Environmental New Resources Kyung Hee University Yongin Gyeonggi‐do 446‐701 Republic of Korea

Advanced Functional Fabrics of America 12 Emily Street Cambridge MA 02139 USA

Department of Materials Science and Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA

Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA

Department of Physics 77 Massachusetts Avenue Cambridge MA 02139 USA

Institute for Soldier Nanotechnologies Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA

Funding

Massachusetts Institute of Technology · Materials Research Science and Engineering Center, Harvard University · National Science Foundation · Army Research Laboratory · Army Research Office · National Science Foundation, United Arab Emirates

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