Elastomeric and Dynamic MnO2/CNT Core–Shell Structure Coiled Yarn Supercapacitor. Issue 5 (11th January 2016)

• Record Type: Journal Article
• Authors: Choi, Changsoon; Sim, Hyeon Jun; Spinks, Geoffrey M.; Lepró, Xavier; Baughman, Ray H.; Kim, Seon Jeong
• Is Part Of: Advanced energy materials. Volume 6:Issue 5(2016)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-01-11
• Subjects: coils -- carbon nanotubes -- electrodes -- stretchable materials -- supercapacitors; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.201502119
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract : Reversibly deformable and highly performing solid‐state yarn supercapacitors are obtained using MnO2 ‐deposited microcoiled yarn electrodes. The core(CNT)–shell(MnO2 )‐structured coiled electrodes achieve high stretchability (37.5%) without the help of elastomeric substrates, minimizing the size of the supercapacitors. Therefore, high specific capacitances of 34.6 F cm −3, 61.25 mF cm −2, and 2.72 mF cm −1 are achieved for coiled supercapacitors without impairing mechanical stretchability or electrochemical cyclability.